Herbert Sixta

Professor, Head of Department, Chemical Pulping Technology at Aalto University School of Business

Schools

  • Aalto University School of Business

Links

Biography

Aalto University School of Business

I have 30 years of experience in industrial research on pulp and cellulose chemistry. The scope was extended to biorefineries after my research career started in 2007 at Aalto University. My core interest comprises the use of tailored ionic liquids for the selective dissolution of different biopolymers as a novel way of biomass fractionation. In material science the focus is laid on the development of high added-value cellulose material regenerated from ionic liquid solution as well as the synthesis of building block chemicals by heterogeneously catalyzed conversion routes from polysaccharides.

Peer-reviewed scientific articles

Journal article-refereed, Original research

High stability and low competitive inhibition of thermophilic Thermopolyspora flexuosa GH10 xylanase in biomass-dissolving ionic liquids

Anbarasan, Sasikala; Wahlström, Ronny; Hummel, Michael; Ojamo, Heikki; Sixta, Herbert; Turunen, Ossi
2017 in APPLIED MICROBIOLOGY AND BIOTECHNOLOGY (SPRINGER)
ISSN: 0175-7598

Hot water treatment of hardwood kraft pulp produces high-purity cellulose and polymeric xylan

Borrega, Marc; Concha-Carrasco, Sellene; Pranovich, Andrey; Sixta, Herbert
2017 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

The chemical-free production of nanocelluloses from microcrystalline cellulose and their use as Pickering emulsion stabilizer

Buffiere, Jean; Balogh-Michels, Zoltán; Borrega, Marc; Geiger, Thomas; Zimmermann, Tanja; Sixta, Herbert
2017 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

The Role of Various Chlorides on Xylose Conversion to Furfural Experiments and Kinetic Modeling

Ershova, Olga; Nieminen, Kaarlo; Sixta, Herbert
2017 in CHEMCATCHEM (Wiley - VCH Verlag GmbH & CO. KGaA)
ISSN: 1867-3880

Hydrothermolysis of organosolv lignin for the production of bio-oil rich in monoaromatic phenolic compounds

Hashmi, Syed Farhan; Meriö-Talvio, Heidi; Hakonen, Kati Johanna; Ruuttunen, Kyösti; Sixta, Herbert
2017 in FUEL PROCESSING TECHNOLOGY (Elsevier Science B.V.)
ISSN: 0378-3820

Understanding the role of water in the interaction of ionic liquids with wood polymers

Roselli, A.; Hummel, M.; Vartiainen, J.; Nieminen, K.; Sixta, H.
2017 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Upgrading of commercial pulps to high-purity dissolving pulps by an ionic liquid-based extraction method

Wollboldt, Petra; Strach, Michael; Russler, Axel; Jankova, Stepanka; Sixta, Herbert
2017 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Sulfur balance of sulfur dioxide-ethanol-water fractionation of sugarcane straw

You, Xiang; van Heiningen, Adriaan; Sixta, Herbert; Iakovlev, Mikhail
2017 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Lignin and ash balances of sulfur dioxide-ethanol-water fractionation of sugarcane straw

You, Xiang; van Heiningen, Adriaan; Sixta, Herbert; Iakovlev, Mikhail
2017 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Renewable High-Performance Fibers from the Chemical Recycling of Cotton Waste Utilizing an Ionic Liquid

Asaadi, Shirin; Hummel, Michael; Hellsten, Sanna; Härkäsalmi, Tiina; Ma, Yibo; Michud, Anne; Sixta, Herbert
2016 in CHEMSUSCHEM (Wiley-VCH Verlag)
ISSN: 1864-5631

The effect of hydration on the micromechanics of regenerated cellulose fibres from ionic liquid solutions of varying draw ratios

Bulota, M.; Michud, A.; Hummel, M.; Hughes, M.; Sixta, H.
2016 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Cellulose-Derived Carbon Fibers Produced via a Continuous Carbonization Process Investigating Precursor Choice and Carbonization Conditions

Byrne, Nolene; Setty, Mohan; Blight, Simon; Tadros, Ray; Ma, Yibo; Sixta, Herbert; Hummel, Michael
2016 in MACROMOLECULAR CHEMISTRY AND PHYSICS (Wiley-VCH Verlag)
ISSN: 1022-1352

Physico-Chemical Alternatives in Lignocellulosic Materials in Relation to the Kind of Component for Fermenting Purposes

Coz, Alberto; Llano, Tamara; Cifrian, Eva; Viguri, Javier; Maican, Edmond; Sixta, Herbert
2016 in MATERIALS (MDPI AG)
ISSN: 1996-1944

Application of mild autohydrolysis to facilitate the dissolution of wood chips in direct-dissolution solvents

Deb, Somdatta; Labafzadeh, Sara R.; Liimatainen, Unna; Parviainen, Arno; Hauru, Lauri K J; Azhar, Shoaib; Lawoko, Martin; Kulomaa, Tuomas; Kakko, Tia; Fiskari, Juha; Borrega Sabate, Marc; Sixta, Herbert; Kilpeläinen, Ilkka; King, Alistair W T
2016 in GREEN CHEMISTRY (ROYAL SOC CHEMISTRY)
ISSN: 1463-9262

Cellulose regeneration and spinnability from ionic liquids

Hauru, Lauri K J; Hummel, Michael; Nieminen, Kaarlo; Michud, Anne; Sixta, Herbert
2016 in SOFT MATTER (ROYAL SOC CHEMISTRY)
ISSN: 1744-683X

Solution-State One- and Two-Dimensional NMR Spectroscopy of High-Molecular-Weight Cellulose

Holding, Ashley J.; Mäkelä, Valtteri; Tolonen, Lasse; Sixta, Herbert; Kilpeläinen, Ilkka; King, Alistair W T
2016 in CHEMSUSCHEM (Wiley-VCH Verlag)
ISSN: 1864-5631

Degradation and Crystallization of Cellulose in Hydrogen Chloride Vapor for High-Yield Isolation of Cellulose Nanocrystals

Kontturi, Eero; Meriluoto, Anne; Penttilä, Paavo A.; Baccile, Niki; Malho, Jani Markus; Potthast, Antje; Rosenau, Thomas; Ruokolainen, Janne; Serimaa, Ritva; Laine, Janne; Sixta, Herbert
2016 in ANGEWANDTE CHEMIE (Wiley-VCH Verlag GmbH & Co. KGaA)
ISSN: 1433-7851

Simultaneous bench scale production of dissolving grade pulp and valuable hemicelluloses from softwood kraft pulp by ionic liquid extraction

Laine, Christiane; Asikainen, Sari; Talja, Riku; Stépán, Agnes; Sixta, Herbert; Harlin, Ali
2016 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Wood biorefinery based on γ-valerolactone/water fractionation

Lê, Huy Quang; Ma, Yibo; Borrega Sabate, Marc; Sixta, Herbert
2016 in GREEN CHEMISTRY (ROYAL SOC CHEMISTRY)
ISSN: 1463-9262

Upcycling of waste paper and cardboard to textiles

Ma, Yibo; Hummel, M.; Määttänen, Marjo; Särkilahti, A.; Harlin, A.; Sixta, H.
2016 in GREEN CHEMISTRY (ROYAL SOC CHEMISTRY)
ISSN: 1463-9262

Influence of process parameters on the structure formation of man-made cellulosic fibers from ionic liquid solution

Michud, Anne; Hummel, Michael; Sixta, Herbert
2016 in JOURNAL OF APPLIED POLYMER SCIENCE (Wiley-Blackwell)
ISSN: 0021-8995

Ioncell-F ionic liquid-based cellulosic textile fibers as an alternative to viscose and Lyocell

Michud, Anne; Tanttu, Marjaana; Asaadi, Shirin; Ma, Yibo; Netti, Eveliina; Kääriäinen, Pirjo; Persson, Anders; Berntsson, Anders; Hummel, Michael; Sixta, Herbert
2016 in TEXTILE RESEARCH JOURNAL (SAGE Publications Ltd)
ISSN: 0040-5175

Profiles of alkali concentration and galactoglucomannan degradation in kraft impregnation of Scots pine wood Experimental observations and modeling

Montagna, Pablo N.; Nieminen, Kaarlo; Inalbon, Maria C.; Sixta, Herbert; Zanuttini, Miguel A.
2016 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Degradation of viscose fibers during acidic treatment

Mozdyniewicz, Danuta Joanna; Nieminen, Kaarlo; Kraft, Gregor; Sixta, Herbert
2016 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Comparison of pulp species in IONCELL-P Selective hemicellulose extraction method with ionic liquids

Roselli, Annariikka; Asikainen, Sari; Stepan, Agnes; Monshizadeh, Alireza; Von Weymarn, Niklas; Kovasin, Kari; Wang, Yawei; Xiong, Hairong; Turunen, Ossi; Hummel, Michael; Sixta, Herbert
2016 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Advantages of regenerated cellulose fibres as compared to flax fibres in the processability and mechanical performance of thermoset composites

Santamala, H.; Livingston, R.; Sixta, H.; Hummel, M.; Skrifvars, M.; Saarela, O.
2016 in COMPOSITES PART A: APPLIED SCIENCE AND MANUFACTURING (Elsevier Limited)
ISSN: 1359-835X

Cellulose fractionation with IONCELL-P

Stepan, A. M.; Monshizadeh, A.; Hummel, M.; Roselli, A.; Sixta, H.
2016 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

IONCELL-P&F Pulp Fractionation and Fiber Spinning with Ionic Liquids

Stepan, Agnes M.; Michud, Anne; Hellstén, Sanna; Hummel, Michael; Sixta, Herbert
2016 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Deformation mechanisms in ionic liquid spun cellulose fibers

Wanasekara, Nandula D.; Michud, Anne; Zhu, Chenchen; Rahatekar, Sameer; Sixta, Herbert; Eichhorn, Stephen J.
2016 in POLYMER (Elsevier BV)
ISSN: 0032-3861

Kinetics of SO2-ethanol-water (AVAP®) fractionation of sugarcane straw

You, Xiang; van Heiningen, Adriaan; Sixta, Herbert; Iakovlev, Mikhail
2016 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Hyperthermostable Thermotoga maritima xylanase XYN10B shows high activity at high temperatures in the presence of biomass-dissolving hydrophilic ionic liquids

Yu, Tianyi; Anbarasan, Sasikala; Wang, Yawei; Telli, Kübra ; Aslan, Aşkın Sevinç; Su, Zhengding; Zhou, Yin; Zhang, Li; Iivonen, Piia; Havukainen, Sami; Mentunen, Tero; Hummel, Michael; Sixta, Herbert; Binay, Baris; Turunen, Ossi; Xiong, Hairong
2016 in EXTREMOPHILES (Springer Japan)
ISSN: 1431-0651

Vapor-Liquid Equilibria, Excess Enthalpy, and Density of Aqueous γ-Valerolactone Solutions

Zaitseva, Anna; Pokki, Juha Pekka; Lê, Huy Quang; Alopaeus, Ville; Sixta, Herbert
2016 in JOURNAL OF CHEMICAL AND ENGINEERING DATA (AMER CHEMICAL SOC)
ISSN: 0021-9568

Population balance based modeling of changes in cellulose molecular weight distribution during ageing

Ahmad, Waqar; Kuitunen, Susanna; Sixta, Herbert; Alopaeus, Ville
2015 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Physico-chemical properties of fractionated softwood kraft lignin and its potential use as a bio-based component in blends with polyethylene

Alekhina, Marina; Erdmann, J.; Ebert, A.; Stepan, A.M.; Sixta, Herbert
2015 in JOURNAL OF MATERIALS SCIENCE (SPRINGER)
ISSN: 0022-2461

Softwood kraft lignin for value-added applications: Fractionation and structural characterization

Alekhina, Marina; Ershova, Olga; Ebert, A.; Heikkinen, S.; Sixta, Herbert
2015 in INDUSTRIAL CROPS AND PRODUCTS (Elsevier)
ISSN: 0926-6690

Water Prehydrolysis of Birch Wood Chips and Meal in Batch and Flow-through Systems: A Comparative Evaluation

Borrega, Marc; Sixta, Herbert
2015 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

From colloidal spheres to nanofibrils: Extensional flow properties of mineral pigment and mixtures with micro and nanofibrils under progressive double layer suppression

Dimic-Misic, K.; Hummel, M.; Paltakari, J.; Sixta, H.; Maloney, T.; Gane, P.
2015 in JOURNAL OF COLLOID AND INTERFACE SCIENCE (ACADEMIC PRESS INC ELSEVIER SCIENCE)
ISSN: 0021-9797

The role of xylulose as an intermediate in xylose conversion to furfural: insights via experiments and kinetic modelling

Ershova, Olga; Kanervo, J.; Hellsten, Sanna; Sixta, Herbert
2015 in RSC ADVANCES (ROYAL SOC CHEMISTRY)

Advanced Biorefinery based on the Fractionation of Biomass in gamma-Valerolactone and Water

Fang, Wenwen; Sixta, Herbert
2015 in CHEMSUSCHEM (Wiley-VCH Verlag)
ISSN: 1864-5631

Purification and characterization of kraft lignin

Fang, W.; Alekhina, Marina; Ershova, Olga; Heikkinen, S.; Sixta, Herbert
2015 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

High-tenacity textile cellulose fibers from ionic liquid solutions

Hummel, Michael; Michud, Anne; Asaadi, Shirin; Ma, Yibo; Sixta, Herbert; Tanttu, Marjaana; Netti, Eveliina
2015 in Chemical Fibers International (Deutscher Fachverlag GmbH)
ISSN: 1434-3584

Delignification and cellulose degradation kinetics models for high lignin content softwood Kraft pulp during flow-through oxygen delignification

Jafari, V.; Nieminen, Kaarlo; Sixta, Herbert; van Heiningen, A.
2015 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

High-Strength Composite Fibers from Cellulose-Lignin Blends Regenerated from Ionic Liquid Solution

Ma, Yibo; Asaadi, Shirin; Johansson, Leena-Sisko; Ahvenainen, Patrik; Reza, Mehedi; Alekhina, Marina; Rautkari, Lauri; Michud, Anne; Hauru, Lauri; Hummel, Michael; Sixta, Herbert
2015 in CHEMSUSCHEM (Wiley-VCH Verlag)
ISSN: 1864-5631

Influence of molar mass distribution on the final properties of fibers regenerated from cellulose dissolved in ionic liquid by dry-jet wet spinning

Michud, A.; Hummel, M.; Sixta, H.
2015 in POLYMER (Elsevier BV)
ISSN: 0032-3861

Monitoring of cellulose depolymerization in 1-ethyl-3-methylimidazolium acetate by shear and elongational rheology

Michud, Anne; Hummel, Michael; Haward, S.; Sixta, Herbert
2015 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Novel insight in carbohydrate degradation during alkaline treatment

Nieminen, Kaarlo; Testova, Lidia; Paananen, Markus; Sixta, Herbert
2015 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Effect of hydroxide and sulfite ion concentration in alkaline sulfite anthraquinone (ASA) pulping - a comparative study

Paananen, Markus; Rovio, Stella; Liitia, Tiina; Sixta, Herbert
2015 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

High-alkali low-temperature polysulfide pulping (HALT) of Scots pine

Paananen, M.; Sixta, H.
2015 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Stabilization, degradation, and dissolution behavior of Scots pine polysaccharides during polysulfide (K-PS) and polysulfide anthraquinone (K-PSAQ) pulping

Paananen, Markus; Rovio, Stella; Liitiä, Tiina; Sixta, Herbert
2015 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Comparison testing of methods for gel permeation chromatography of cellulose: coming closer to a standard protocol

Potthast, A.; Radosta, S.; Saake, B.; Lebioda, S.; Heinze, T.; Henniges, U.; Isogai, A.; Koschella, A.; Kosma, P.; Rosenau, T.; Schiehser, S.; Sixta, H.; Strlic, M.; Strobin, G.; Vorwerg, W.; Wetzel, H.
2015 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Ioncell-F: A High-strength regenerated cellulose fibre

Sixta, Herbert; Michud, Anne; Hauru, Lauri; Asaadi, Shirin; Ma, Yibo; King, Alistair W.T.; Kilpeläinen, Ilkka; Hummel, Michael
2015 in NORDIC PULP AND PAPER RESEARCH JOURNAL (AB SVENSK PAPPERSTIDNING)
ISSN: 0283-2631

Supercritical water treatment for cello-oligosaccharide production from microcrystalline cellulose

Tolonen, Lasse K.; Juvonen, Minna; Niemelä, Klaus; Mikkelson, Atte; Tenkanen, Maija; Sixta, Herbert
2015 in Carbohydrate Research (ELSEVIER SCI LTD)
ISSN: 0008-6215

Solubility of Cellulose in Supercritical Water Studied by Molecular Dynamics Simulations

Tolonen, L.K.; Bergenstråhle-Wohlert, M.; Sixta, Herbert; Wohlert, J.
2015 in Journal of Physical Chemistry B (AMER CHEMICAL SOC)
ISSN: 1520-6106

The yield of cellulose precipitate from sub- and supercritical water treatment of various microcrystalline celluloses

Tolonen, L.K.; Penttilä, P.A.; Serimaa, R.; Sixta, Herbert
2015 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Impact of Water in the Casting of Cellulosic Film from Ionic Liquid Solutions

Wawro, Dariusz; Steplewski, Wlodzimierz; Madaj, Witold; Michud, Anne; Hummel, Michael; Sixta, Herbert
2015 in FIBRES AND TEXTILES IN EASTERN EUROPE (Institute of Biopolymers and Chemical Fibres)
ISSN: 1230-3666

Carboxymethylation of alkali extracted xylan for preparation of biobased packaging films

Alekhina, Marina; Mikkonen, Kirsi K.; Alen, Raimo; Tenkanen, Maija; Sixta, Herbert
2014 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Towards optimal selective fractionation for Nordic woody biomass using novel amine-organic superbase derived switchable ionic liquids (SILs)

Anugwom, Ikenna; Eta, Valerie; Virtanen, Pasi; Mäki-Arvela, Päivi; Hedenström, Mattias; Yibo, Ma; Hummel, Michael; Sixta, Herbert; Mikkola, Jyri-Pekka
2014 in BIOMASS AND BIOENERGY (Elsevier Limited)
ISSN: 0961-9534

Switchable Ionic Liquids as Delignification Solvents for Lignocellulosic Materials

Anugwom, Ikenna; Eta, Valerie; Virtanen, Pasi; Maki-Arvela, Paivi; Hedenstrom, Mattias; Hummel, Michael; Sixta, Herbert; Mikkola, Jyri-Pekka
2014 in CHEMSUSCHEM (Wiley-VCH Verlag)
ISSN: 1864-5631

Thermal behaviour and tolerance to ionic liquid [emim]OAc in GH10 xylanase from Thermoascus aurantiacus SL16W

Chawachart, Niwat; Anbarasan, Sasikala; Turunen, Samuel; Li, He; Khanongnuch, Chartchai; Hummel, Michael; Sixta, Herbert; Granström, Tom; Lumyong, Saisamorn; Turunen, Ossi
2014 in EXTREMOPHILES (Springer Japan)
ISSN: 1431-0651

Processing plate-plate immobilization data of MNFC furnishes

Dimic-Misic, Katarina; Nieminen, Kaarlo; Maloney, Thaddeus; Sixta, Herbert; Paltakari, Jouni
2014 in ISTRAžIVANJA I PROJEKTOVANJA ZA PRIVREDU (Institut za istrazivanja i projektovanja u privredi)
ISSN: 1451-4117

Processing plate-plate immobilization data of nanocellulose furnishes

Dimic-Misic, K.; Nieminen, K.; Maloney, T.; Sixta, H.; Paltakari, J.; Gane, P.
2014 in Journal of Applied Engineering Science (Institut za istrazivanja i projektovanja u privredi)
ISSN: 2247-3769

Deriving a process viscosity for complex particulate nanofibrillar cellulose gel-containing suspensions

Dimic-Misic, K.; Nieminen, K.; Gane, P.A.; Maloney, T.; Sixta, H.; Paltakari, J.
2014 in APPLIED RHEOLOGY (KERSCHENSTEINER VERLAG GMBH)
ISSN: 1430-6395

Wobama - Wood based materials and fuels

Ek, Monica; Chirat, Christine; Fogelström, Linda; Iversen, Tommy; Li, Dongfang; Malmström, Eva; Norström, Emelie; Sixta, Herbert; Testova, Lidia; Toivari, Terhi; Wawro, Dariusz
2014 in Cellulose Chemistry and Technology (Editura Academiei Romane)
ISSN: 0576-9787

Short TCF sequences in the bleaching of Eucalyptus camaldulensis pulp. A comparative study

Fiskari, Juha; Savela, Miikka; Ruuttunen, Kyosti; Ali-Rekola, Ville; Kilpelainen, Petri; Sixta, Herbert
2014 in Cellulose Chemistry and Technology (Editura Academiei Romane)
ISSN: 0576-9787

Dry-jet wet spinning of strong cellulose filaments from ionic liquid solution

Hauru, L.K.J.; Hummel, M.; Michud, A.; Sixta, H.
2014 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

SO2-ethanol-water (SEW) fractionation process: production of dissolving pulp from spruce

Iakovlev, M.; You, X.; van Heiningen, A.; Sixta, H.
2014 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

SO2-ethanol-water (SEW) fractionation of spruce: kinetics and conditions for paper and viscose-grade dissolving pulps

Iakovlev, M.; You, X.; van Heiningen, A.; Sixta, H.
2014 in RSC ADVANCES (ROYAL SOC CHEMISTRY)

Oxygen delignification of conventional and high alkali cooked softwood Kraft pulps, and study of the residual lignin structure

Jafari, V.; Labafzadeh, S.R.; King, A.; Kilpeläinen, I.; Sixta, H.; Van Heiningen, A.
2014 in RSC ADVANCES (ROYAL SOC CHEMISTRY)

Kinetics of Oxygen Delignification of High-Kappa Pulp in a Continuous Flow-Through Reactor

Jafari, V.; Sixta, H.; van Heiningen, A.
2014 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Multistage oxygen delignification of high-kappa pine kraft pulp with peroxymonosulfuric acid (Px)

Jafari, Vahid; Sixta, Herbert; van Heiningen, Adriaan
2014 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Alkaline steeping of dissolving pulp.Part II: Soluble compounds in the press lye

Mozdyniewicz, D.J.; Schild, G.; Sixta, Herbert
2014 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Kinetic model for carbohydrate degradation and dissolution during kraft pulping

Nieminen, K.; Paananen, M.; Sixta, H.
2014 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Novel insight into lignin degradation during kraft cooking

Nieminen, K.; Kuitunen, S.; Paananen, M.; Sixta, H.
2014 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

MAGBONS: Novel Magnetically Separable Carbonaceous Nanohybrids from Porous Polysaccharides

Ojeda, Manuel; Balu, Alina Mariana; Angel Romero, Antonio; Esquinazi, Pablo; Ruokolainen, Janne; Sixta, Herbert; Luque, Rafael
2014 in CHEMCATCHEM (Wiley - VCH Verlag GmbH & CO. KGaA)
ISSN: 1867-3880

Ionic liquid extraction method for upgrading eucalyptus kraft pulp to high purity dissolving pulp

Roselli, A.; Hummel, M.; Monshizadeh, A.; Maloney, T.; Sixta, H.
2014 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Combined production of polymeric birch xylan and paper pulp by alkaline pre-extraction followed by alkaline cooking

Testova, L.; Roselli, A.; Costabel, L.; Kovasin, K.; Tenkanen, M.; Sixta, H.
2014 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Cellulose degradation in alkaline media upon acidic pretreatment and stabilization

Testova, Lidia; Nieminen, Kaarlo; Penttila, A.Paavo; Serimaa, Ritva; Potthast, Antje; Sixta, Herbert
2014 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Dissolving-grade birch pulps produced under various prehydrolysis intensities: Quality, structure and applications

Testova, L.; Borrega, M.; Tolonen, L.K.; Penttilä, P.A.; Serimaa, R.; Larsson, P.T.; Sixta, H.
2014 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Strong Cellulosic Film Cast from Ionic Liquid Solutions

Wawro, Dariusz; Hummel, Michael; Michud, Anne; Sixta, Herbert
2014 in FIBRES AND TEXTILES IN EASTERN EUROPE (Institute of Biopolymers and Chemical Fibres)
ISSN: 1230-3666

Purification of cellulosic pulp by hot water extraction

Borrega, M.; Sixta, H.
2013 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Effect of hydrothermal treatment intensity on the formation of degradation products from birchwood

Borrega, M.; Niemelä, K.; Sixta, H
2013 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Potential of hot water extraction of birch wood to produce high-purity dissolving pulp after alkaline pulping.

Borrega, M.; Tolonen, L.K.; Bardot, F.; Testova, L.; Sixta, H.
2013 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Separation of hemicellulose and cellulose from wood by means of ionic liquid/cosolvent systems

Froschauer, Carmen; Hummel, Michael; Iakovlev, Mikhail; Roselli, Annariikka; Schottenberger, Herwig; Sixta, Herbert
2013 in BIOMACROMOLECULES (AMER CHEMICAL SOC)
ISSN: 1525-7797

Enhancement of ionic liquid-aided fractionation of birchwood.Part 1: Autohydrolysis pretreatment

Hauru, L.K.J.; Hummel, M.; Alekhina, M.; King, A.W.T.; Kilpelainen, I.; Penttillä, P.A.; Serima, R.; Sixta, H.
2013 in RSC ADVANCES (ROYAL SOC CHEMISTRY)

Thermostabilization of extremophilic Dictyoglomus thermophilum GH11 xylanase by an N-terminal disulfide bridge and the effect of ionic liquid [emim][OAc on the enzymatic performance

Li, He; Kankaanpää, Anna; Xiong, Hairong; Hummel, Michael; Sixta, Herbert; Ojamo, Heikki; Turunen, Ossi
2013 in ENZYME AND MICROBIAL TECHNOLOGY (BUTTERWORTH-HEINEMANN)
ISSN: 0141-0229

Diffusion Dynamics in Pinus sylvestris Kraft Impregnation: Effect of Deacetylation and Galactoglucomannan Degradation

Montagna, Pablo N.; Cristina Inalbon, M.; Paananen, Markus; Sixta, Herbert; Zanuttini, Miguel A.
2013 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Alkaline steeping of dissolving pulp.Part I: Cellulose degradation kinetics

Mozdyniewicz, D.J.; Nieminen, K.; Sixta, H.
2013 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Further insight into carbohydrate degradation and dissolution behavior during kraft cooking under elevated alkalinity without and in the presence of anthraquinone

Paananen, M.; Liitia, T.; Sixta, H.
2013 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Predicting celulose solvating capabilities of acid-base conjugate ionic liquids

Parviainen, A.; King, A.W.T.; Mutikainen, I.; Hummel, M.; Selg, C.; Hauru, L.K.L.; Sixta, H.; Kilpelainen, I.
2013 in CHEMSUSCHEM (Wiley-VCH Verlag)
ISSN: 1864-5631

Effects of pressurized hot water extraction on the nanoscale structure of birch sawdust

Penttilä, P.A.; Kilpelainen, P.; Tolonen, L.; Suuronen, J.-P.; Sixta, H.; Willför, S.; Serimaa, R.
2013 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Novel concepts of dissolving pulp production

Sixta, Herbert; Iakovlev, Mikhail; Testova, Lidia; Roselli, Annariikka; Hummel, Michael; Borrega, Marc; Van Heinigen, Adriaan; Froschauer, Carmen; Schottenberger, Herwig
2013 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

The swelling and dissolution of celulose crystallites in subcritical and supercritical water

Tolonen, L.K.; Penttilä, P.A.; Serimaa, R.; Kruse, A.; Sixta, H.
2013 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Novel insight into cellulose supramolecular structure through 13C CP-MAS NMR spectroscopy and paramagnetic relaxation enhancement

Zuckerstaetter, G.; Terinte, N.; Sixta, H.; Schuster, K.C.
2013 in CARBOHYDRATE POLYMERS (ELSEVIER SCI LTD)
ISSN: 0144-8617

Shear strength of the lyocell fiber/polymer matrix interface evaluated with the microbond technique

Adusumalli, R.; Reifferscheid, M.; Weber, H.K.; Roeder, T.; Sixta, H.; Gindl, W.
2012 in JOURNAL OF COMPOSITE MATERIALS (SAGE Publications Ltd)
ISSN: 0021-9983

Effect of urea on cellulose degradation under conditions of alkaline pulping

Ershova, Olga; da Costa, Elisabete; Fernandes, António; Domingues, M.; Evtuguin, Dmitry; Sixta, Herbert
2012 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Dialkyl phosphate-related ionic liquids as selective solvents for xylan

Froschauer, C.; Hummel, H.; Laus, G.; Schottenberger, H.; Sixta, H.; Weber, K.H.; Zuckerstätter, G.
2012 in BIOMACROMOLECULES (AMER CHEMICAL SOC)
ISSN: 1525-7797

A superior new route to methyl phosphonate-based ionic liquids

Froschauer, C.; Sixta, H.; Weber, H.K.; Laus, G.; Kahlenberg, V.; Schottenberger, H.
2012 in CHEMISTRY LETTERS (Chemical Society of Japan)
ISSN: 0366-7022

Reactivity of dissolving pulps modified by TEMPO-mediated oxidation

Gehmayr, V.; Potthast, A.; Sixta, H.
2012 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Pulp Properties and Their Influence on Enzymatic Degradability

Gehmayr, V.; Sixta, H.
2012 in BIOMACROMOLECULES (AMER CHEMICAL SOC)
ISSN: 1525-7797

Comparative evaluation of autohydrolysis and acid-catalyzed hydrolysis of Eucalyptus globulus wood

Guetsch, J.; Sixta, H.
2012 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Regeneration of spent activated charcoals used for lignin removal from prehydrolysis-kraft prehydrolysates.

Guetsch, J.S.; Sixta, H.
2012 in INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH (AMER CHEMICAL SOC)
ISSN: 0888-5885

Role of solvent parameters in the regeneration of cellulose from ionic liquid solutions

Hauru, L.; Hummel, M.; King, A.; Kilpelainen, I.; Sixta, H.
2012 in BIOMACROMOLECULES (AMER CHEMICAL SOC)
ISSN: 1525-7797

Relative and inherent reactivities of imidazolium-based ionic liquids: the implications for lignocellulose processing applications

King, Alistair W.T.; Parviainen, A.; Karhunen, P.; Matikainen, J.; Hauru, L.K.J.; Sixta, H.; Kilpelainen, I.
2012 in RSC ADVANCES (ROYAL SOC CHEMISTRY)

Comparative evaluation of different kinetic models for batch cooking: A review

Nieminen, Kaarlo; Sixta, Herbert
2012 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Effects of hot water extraction in a batch reactor on the delignification of birch wood

Borrega, Marc; Nieminen, Kaarlo; Sixta, Herbert
2011 in Bioresources (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)

Degradation kinetics of the main carbohydrates in birch wood during hot water extraction in a batch reactor at elevated temperatures

Borrega, Marc; Nieminen, Kaarlo; Sixta, Herbert
2011 in BIORESOURCE TECHNOLOGY (ELSEVIER SCI LTD)
ISSN: 0960-8524

Viscosity-Molecular Weight Relationship for Cellulose Solutions in Either NMMO Monohydrate or Cuen

Eckelt, John; Knopf, Anja; Roeder, Thomas; Weber, Hedda K.; Sixta, Herbert; Wolf, Bernhard A.
2011 in JOURNAL OF APPLIED POLYMER SCIENCE (Wiley-Blackwell)
ISSN: 0021-8995

A precise study on the feasibility of enzyme treatments of a kraft pulp for viscose application

Gehmayr, Verena; Schild, Gabriele; Sixta, Herbert
2011 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Purification of Eucalyptus globulus water prehydrolyzates using the HiTAC process (high-temperature adsorption on activated charcoal)

Gütsch, Jenny Sabrina; Sixta, Herbert
2011 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Dimethyl phosphorothioate and phosphoroselenoate ionic liquids as solvent media for cellulosic materials

Hummel, Michael; Froschauer, Carmen; Laus, Gerhard; Roder, Thomas; Kopacka, Holger; Hauru, Lauri K.J.; Weber, Hedda K.; Sixta, Herbert; Schottenberger, Herwig
2011 in GREEN CHEMISTRY (ROYAL SOC CHEMISTRY)
ISSN: 1463-9262

SO2-Ethanol-Water (SEW) pulping: II.Kinetics for spruce, beech, and wheat straw

Iakovlev, Mikhail; Sixta, Herbert; van Heiningen, Adriaan
2011 in JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY (Taylor and Francis Ltd.)
ISSN: 0277-3813

Evaluation of various pretreatment methods to manage fouling in ultrafiltration of wood hydrolysates

Koivula, E; Kallioinen, M; Preis, S; Testova, L; Sixta, H; Manttari, M
2011 in SEPARATION AND PURIFICATION TECHNOLOGY (Elsevier Science B.V.)
ISSN: 1383-5866

Carbohydrate degradation reactions during alkaline steeping of dissolving pulp

Mozdyniewicz, Danuta J.; Sixta, Herbert; Weber, Hedda K.
2011 in Abstracts of papers of the American Chemical Society (AMER CHEMICAL SOC)
ISSN: 0065-7727

Effect of autohydrolysis on the lignin structure and the kinetics of delignification of birch wood

Rauhala, Tiina; King, Alistair W.T.; Zuckerstätter, Gerhard; Suuronen, Simopekka; Sixta, Herbert
2011 in NORDIC PULP AND PAPER RESEARCH JOURNAL (AB SVENSK PAPPERSTIDNING)
ISSN: 0283-2631

Sulfur-free dissolving pulps and their application for viscose and lyocell

Schild, Gabriele; Sixta, Herbert
2011 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Determination of the xanthate group distribution on viscose by liquid-state 1H NMR spectroscopy

Schwaighofer, Andreas; Zuckerstätter, Gerhard; Schlagnitweit, Judith; Sixta, Herbert; Müller, Norbert
2011 in ANALYTICAL AND BIOANALYTICAL CHEMISTRY (SPRINGER HEIDELBERG)
ISSN: 1618-2642

Autohydrolysis of birch wood: 11th EWLP, Hamburg, Germany, August 16-19, 2010

Testova, Lidia; Chong, Sun-Li; Tenkanen, Maija; Sixta, Herbert
2011 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Structural Changes in Microcrystalline Cellulose in Subcritical Water Treatment

Tolonen, Lasse K.; Zuckerstatter, Gerhard; Penttila, Paavo A.; Milacher, Walter; Habicht, Wilhelm; Serimaa, Ritva; Kruse, Andrea; Sixta, Herbert
2011 in BIOMACROMOLECULES (AMER CHEMICAL SOC)
ISSN: 1525-7797

Evaluation of Experimental Parameters in the Microbond Test with Regard to Lyocell Fibers

Adusumalli, Ramesh-Babu; Weber, Hedda K.; Roeder, Thomas; Sixta, Herbert; Gindl, Wolfgang
2010 in JOURNAL OF REINFORCED PLASTICS AND COMPOSITES (SAGE Publications Ltd)
ISSN: 0731-6844

Acoustical properties of Lyocell, hemp, and flax composites

Buksnowitz, Christoph; Adusumalli, Ramesh; Pahler, Andreas; Sixta, Herbert; Gindl, Wolfgang
2010 in JOURNAL OF REINFORCED PLASTICS AND COMPOSITES (SAGE Publications Ltd)
ISSN: 0731-6844

New aspects of residual lignin isolation

Gehmayr, Verena; Gütsch, Jenny; Leschinsky, Moritz; Zuckerstätter, Gerhard; Sixta, Herbert
2010 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Acidity and Lactonization of Xylonic Acid: A Nuclear Magnetic Resonance Study

Hummel, Michael; Leppikallio, Mikko; Heikkinen, Sami; Niemelä, Klaus; Sixta, Herbert
2010 in JOURNAL OF CARBOHYDRATE CHEMISTRY (Taylor and Francis Ltd.)
ISSN: 0732-8303

Effects of integrating a bioethanol production process to a kraft pulp mill

Kautto, Jesse; Henricson, Kaj; Sixta, Herbert; Trogen, Mikaela; Alen, Raimo
2010 in NORDIC PULP AND PAPER RESEARCH JOURNAL (AB SVENSK PAPPERSTIDNING)
ISSN: 0283-2631

Galactoglucomannan stabilization during the initial kraft cooking of Scots pine

Paananen, Markus; Tamminen, Tarja; Nieminen, Kaarlo; Sixta, Herbert
2010 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Multifunctional alkaline pulping, delignification and hemicellulose extraction

Schild, Gabriele; Sixta, Herbert; Testova, Lidia
2010 in Cellulose Chemistry and Technology (Editura Academiei Romane)
ISSN: 0576-9787

Effects of impregnation time on hardwood kraft pulp characteristics and papermaking potential - a mill study

Tolonen, Lasse; Hiltunen, Eero; Helttunen, Jukka; Sixta, Herbert
2010 in TAPPI JOURNAL (TECH ASSOC PULP PAPER IND INC)
ISSN: 0734-1415

Accessibility, reactivity and supramolecular structure of E. globulus pulps with reduced xylan content

Wollboldt, R.Petra; Zuckerstaetter, Gerhard; Weber, Hedda K.; Larsson, Per Tomas; Sixta, Herbert
2010 in WOOD SCIENCE AND TECHNOLOGY (Springer Verlag)
ISSN: 0043-7719

Process for the regioselective sulfation of pentose oligosaccharides

Abad Romero, Beatriz; Kosma, Paul; Potthast, Antje; Rosenau, Thomas; Sixta, Herbert
2009 in Lenzing Aktiengesellschaft, Austria. Application: WO (Springer Verlag)

Synthesis of regioselectively sulfated xylodextrins and crystal structure of sodium methyl b-xylopyranoside 4-O-sulfate hemihydrate

Abad-Romero, B.; Mereiter, K.; Sixta, H.; Hofinger, A.; Kosma, P.
2009 in Carbohydrate Research (ELSEVIER SCI LTD)
ISSN: 0008-6215

Comparison of molecular orientation and mechanical properties of lyocell fibre tow and staple fibres.Cellulose

Adusumalli, Ramesh-Babu; Keckes, Jozef; Martinschitz, Klaus J.; Boesecke, Peter; Weber, Hedda; Roeder, Thomas; Sixta, Herbert; Gindl, Wolfgang
2009 in CELLULOSE (SPRINGER)

Phase diagram of the ternary system NMMO/water/cellulose

Eckelt, John; Eich, Tanja; Roeder, Thomas; Ruef, Hartmut; Sixta, Herbert; Wolf, Bernhard A.
2009 in CELLULOSE (SPRINGER)
ISSN: 0969-0239

Formation of insoluble components during autohydrolysis of Eucalyptus globulus

Leschinsky, Moritz; Weber, Hedda K.; Patt, Rudolf; Sixta, Herbert
2009 in Lenzinger Berichte (SPRINGER)
ISSN: 0024-0907

DETAILED MASS BALANCES OF THE AUTOHYDROLYSIS OF EUCALYPTUS GLOBULUS AT 170 degrees C

Leschinsky, Moritz; Sixta, Herbert; Patt, Rudolf
2009 in Bioresources (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)
ISSN: 1930-2126

Characterization of structural changes in lignin during continuous batch kraft cooking of eucalyptus globulus

Rutkowska, Ewa W.; Wollboldt, Petra; Zuckerstaetter, Gerhard; Weber, Hedda K.; Sixta, Herbert
2009 in Bioresources (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)

Comparative characterization of man-made regenerated cellulose fibres

Röder, Thomas; Moosbauer, Johann; Kliba, Gerhard; Schlader, Sandra; Zuckerstätter, Gerhard; Sixta, Herbert
2009 in Lenzinger Berichte (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)
ISSN: 0024-0907

Synthesis of 4-O-Methyl glucuronic acid

Sixta, Georg; Herok, Wilhelm; Gruber, Clemens; Weber, Hedda K.; Sixta, Herbert; Kosma, Paul
2009 in Lenzinger Berichte (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)
ISSN: 0024-0907

A new generation kraft process

Sixta, Herbert; Schild, Gabriele
2009 in Lenzinger Berichte (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)
ISSN: 0024-0907

Isolation of wood hemicelluloses from birch wood: distribution of wood components and preliminary trials in dehydration of hemicelluloses

Testova, Lidia; Vilonen, Kati; Pynnönen, Henna; Tenkanen, Maija; Sixta, Herbert
2009 in Lenzinger Berichte (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)
ISSN: 0024-0907

The elucidation of cellulose supramolecular structure by 13C CP-MAS NMR

Zuckerstaetter, Gerhard; Schild, Gabriele; Wollboldt, Petra; Roeder, Thomas; Weber, Hedda K.; Sixta, Herbert
2009 in Lenzinger Berichte (NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI)
ISSN: 0024-0907

A new and facile method for isolation of lignin from wood based on complete wood dissolution

Fasching, M.; Schroeder, P.; Wollboldt, R.P.; Weber, H.K.; Sixta, H.
2008 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Anisotropy of the modulus of elasticity in regenerated cellulose fibres related to molecular orientation

Gindl, W.; Reifferscheid, M.; Adusumalli, R.B.; Weber, H.; Roeder, T.; Sixta, H.; Schoeberl, T.
2008 in POLYMER (Elsevier BV)
ISSN: 0032-3861

Effect of autohydrolysis of Eucalyptus globulus wood on lignin structure.Part 2: Influence of autohydrolysis intensity

Leschinsky, Moritz; Zuckerstaetter, Gerhard; Weber, Hedda K.; Patt, Rudolf; Sixta, Herbert
2008 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Effect of autohydrolysis of Eucalyptus globulus wood on lignin structure.Part 1: Comparison of different lignin fractions formed during water prehydrolysis

Leschinsky, Moritz; Zuckerstaetter, Gerhard; Weber, Hedda K.; Patt, Rudolf; Sixta, Herbert
2008 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)
ISSN: 0018-3830

Comprehensive kinetic study on kraft pulping of Eucalyptus globulus.Part 2

Sixta, Herbert; Rutkowska, Ewa W.
2007 in O PAPEL (Assoc. Tecnica Brasileira de Celulose e Papel)
ISSN: 0031-1057

Comprehensive kinetic study on kraft pulping of Eucalyptus globulus.Part I

Sixta, Herbert; Rutkowska, Ewa W.
2007 in O PAPEL (Assoc. Tecnica Brasileira de Celulose e Papel)
ISSN: 0031-1057

Isolation, synthesis, and derivatization of xylodextrins

Abad-Romero, Beatriz; Haltrich, Dietmar; Potthast, Antje; Rosenau, Thomas; Sixta, Herbert; Kosma, Paul
2006 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

Mechanical properties of regenerated cellulose fibres for composites

Adusumalli, Ramesh-Babu; Reifferscheid, Moritz; Weber, Hedda; Roeder, Thomas; Sixta, Herbert; Gindl, Wolfgang
2006 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

Tensile testing of single regenerated cellulose fibres

Adusumalli, Ramesh-Babu; Müller, Ulrich; Weber, Hedda; Roeder, Thomas; Sixta, Herbert; Gindl, Wolfgang
2006 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

The FDAM Method: Determination of Carboxyl Profiles in Cellulosic Materials by Combining Group-Selective Fluorescence Labeling with GPC

Bohrn, R.; Potthast, Antje; Kostic, Mirjana; Schiehser, Sonja; Rosenau, Thomas; Sixta, Herbert; Kosma, Paul
2006 in BIOMACROMOLECULES (AMER CHEMICAL SOC)

Studies on prehydrolysis sulfite - strategies to mitigate the effects of lignin deactivation during prehydrolysis

Fasching, Mario; Kandioller, Gottfried; Griebl, Andreas; Sixta, Herbert
2006 in Lenzinger Berichte 86 (AMER CHEMICAL SOC)

Xylo-oligosaccharide (XOS) formation through hydrothermolysis of xylan derived from viscose process

Griebl, Alexandra; Lange, Thomas; Weber, Hedda; Milacher, Walter; Sixta, Herbert
2006 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

A novel approach to determination of carbonyl groups in DMAc/LiCl-insoluble pulps by fluorescence labeling

Kostic, Mirjana; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert
2006 in CELLULOSE (SPRINGER)

SEC in cellulose xanthate analysis

Potthast, Antje; Rosenau, Thomas; Saake, Bodo; Puls, Jürgen; Sixta, Herbert; Kosma, Paul
2006 in Lenzinger Berichte 86 (SPRINGER)

The influence of beech wood storage on the production and properties of regenerated viscose fibres

Promberger, Andrea; Weber, Hedda; Gradinger, Cornelia; Messner, Kurt; Sixta, Herbert
2006 in Lenzinger Berichte 86 (SPRINGER)

Determination of substituent distribution of viscoses by GPC

Rußler, Axel; Potthast, Antje; Rosenau, Thomas; Lange, Thomas; Saake, Bodo; Sixta, Herbert; Kosma, Paul
2006 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)

Crystallinity determination of native cellulose-comparison of analytical methods

Röder, Thomas; Moosbauer, Johann; Fasching, Mario; Bohn, Andreas; Fink, Hans-Peter; Baldinger, Thomas; Sixta, Herbert
2006 in Lenzinger Berichte 86 (WALTER DE GRUYTER GMBH)

Crystallinity determination of man-made cellulose fibers - comparison of analytical methods

Röder, Thomas; Moosbauer, Johann; Fasching, Mario; Bohn, Andreas; Fink, Hans-Peter; Baldinger, Thomas; Sixta, Herbert
2006 in Lenzinger Berichte 86 (WALTER DE GRUYTER GMBH)

Evaluation of alkali resistant nanofiltration membranes for the separation of hemicellulose from concentrated alkaline process liquors

Schlesinger, Robert; Götzinger, Gerhard; Sixta, Herbert; Friedl, Anton; Harasek, Michael
2006 in DESALINATION (Elsevier)
ISSN: 0011-9164

Calculation of physical property data of the system MgO-SO2-H2O and their implementation in Aspen Plus

Schöggl, Karl; Steindl, Michael; Friedl, Anton; Weber, Hedda K.; Sixta, Herbert
2006 in Lenzinger Berichte 86 (Elsevier)

Comprehensive kinetic study of delignification, carbohydrate degradation, cellulose chain scissions, and hexenuronic acid reactions during kraft pulping of Eucalyptus globulus

Sixta, Herbert; Rutkowska, Ewa W.
2006 in Lenzinger Berichte 86 (Elsevier)

Discoloration of cellulose solutions in N-methylmorpholine-N-oxide (Lyocell).Part 1: Studies on model compounds and pulps

Adorjan, Immanuel; Potthast, Antje; Rosenau, Thomas; Sixta, Herbert; Kosma, Paul
2005 in CELLULOSE (SPRINGER)

Synthesis and testing of a novel fluorescence label for carboxyls in carbohydrates and cellulosics

Bohrn, Rainer; Potthast, Antje; Rosenau, Thomas; Sixta, Herbert; Kosma, Paul
2005 in SYNLETT (Georg Thieme Verlag)

Prehydrolysis sulfite revisited

Fasching, Mario; Griebl, Andreas; Kandioller, Gottfried; Zieher, Andrea; Weber, Hedda; Sixta, Herbert
2005 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

Comparison of UV and confocal Raman microscopy to measure the melamine-formaldehyde resin content within cell walls of impregnated spruce wood

Gierlinger, Notburga; Hansmann, Christian; Röder, Thomas; Sixta, Herbert; Gindl, Wolfgang; Wimmer, Rupert
2005 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)

Microbiological characterisation of beech wood and its influence on the quality of sulfite dissolving pulp

Gradinger, Cornelia; Promberger, Andrea; Messner, Kurt; Weber, Hedda K.; Sixta, Herbert
2005 in Professional Papermaking (WALTER DE GRUYTER GMBH)

Ionic liquids: current developments, potential and drawbacks for industrial applications

Laus, Gerhard; Bentivoglio, Gino; Schottenberger, Herwig; Kahlenberg, Volker; Kopacka, Holger; Röder, Thomas; Sixta, Herbert
2005 in Lenzinger Berichte 84 (WALTER DE GRUYTER GMBH)

Oxidation of reducing end groups in celluloses according to different protocols

Nagel, G.; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert
2005 in Lenzinger Berichte 84 (WALTER DE GRUYTER GMBH)

Confocal raman spectroscopy - Applications on wood, pulp, and cellulose fibres

Roeder, Hedda K.; Sixta, Herbert
2005 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

A novel method for analysis of xanthate group distribution in viscoses

Rußler, Axel; Lange, Thomas; Potthast, Antje; Rosenau, Thomas; Berger-Nicoletti, Elena; Sixta, Herbert; Kosma, Paul
2005 in MACROMOLECULAR SYMPOSIA (HUTHIG & WEPF VERLAG)

Influence of hemicellulose aggregate and gel layer formation on flux and retention during nanofiltration of alkaline solutions

Schlesinger, Robert; Röder, Thomas; Götzinger, Gerhard; Sixta, Herbert; Harasek, Michael; Friedl, Anton
2005 in DESALINATION (Elsevier)
ISSN: 0011-9164

Cross-Sectional Analysis of the Polysaccharide Composition in Cellulosic Fiber Materials by Enzymatic Peeling/High-Performance Capillary Zone Electrophoresis

Sjöberg, John; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert
2005 in BIOMACROMOLECULES (AMER CHEMICAL SOC)

A novel diazo reagent for fluorescence labeling of carboxyl groups in pulp

Bohrn, Rainer; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert
2004 in Lenzinger Berichte 83 (AMER CHEMICAL SOC)

Evaluation of new organosolv dissolving pulps.Part II: Structure and NMMO processability of the pulps

Fink, Hans-Peter; Weigel, Peter; Ganster, Johannes; Rihm, Rainer; Puls, Jürgen; Sixta, Herbert; Parajo, Carlos
2004 in CELLULOSE (SPRINGER)

Characterization of alkali-soluble hemicelluloses of hardwood dissolving pulps

Mais, Ursula; Sixta, Herbert
2004 in ACS SYMPOSIUM SERIES (American Chemical Society)
ISSN: 0097-6156

Effect of UV radiation on the carbonyl distribution in different pulps

Potthast, Antje; Schiehser, Sonja; Rosenau, Thomas; Sixta, Herbert; Kosma, Paul
2004 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)

Investigation of storage conditions on beech wood logs and chips and its influence on the production of dissolving sulfite pulp

Promberger, Andrea; Weber, Hedda K.; Stockinger, Andreas; Sixta, Herbert
2004 in Lenzinger Berichte 83 (WALTER DE GRUYTER GMBH)

Application of confocal Raman spectroscopy for the topochemical distribution of lignin and cellulose in plant cell walls of beech wood (Fagus sylvatica L.) compared to UV microspectrophotometry

Roeder, Thomas; Koch, Gerhard; Sixta, Herbert
2004 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)

Thermal treatment of cellulose pulps and its influence to cellulose reactivit

Röder, Thomas; Sixta, Herbert
2004 in Lenzinger Berichte 83 (WALTER DE GRUYTER GMBH)

Confocal Raman spectroscopy applications on wood samples

Röder, Thomas; Sixta, Herbert
2004 in Lenzinger Berichte 83 (WALTER DE GRUYTER GMBH)

Hemicellulose fouling behaviour during nanofiltration of press liquor

Schlesinger, Robert; Röder, Thomas; Götzinger, Gerhard; Harasek, Michael; Friedl, Anton; Sixta, Herbert; Weber, Hedda
2004 in Lenzinger Berichte 83 (WALTER DE GRUYTER GMBH)

Influence of beech wood quality on bisulfite dissolving pulp manufacture.Part 1: influence of log storage on pulping and bleaching

Sixta, Herbert; Promberger, Andrea; Koch, Gerhard; Gradinger, Cornelia; Messner, Kurt
2004 in HOLZFORSCHUNG (WALTER DE GRUYTER GMBH)

Evaluation of new organosolv dissolving pulps.Part I: Preparation, analytical characterization and viscose processability

Sixta, Herbert; Harms, H.; Dapia, S.; Parajo, Juan Carlos; Puls, Jürgen; Saake, B.; Fink, Hans-Peter; Röder, Thomas
2004 in CELLULOSE (SPRINGER)

Monitoring of the phase transition of magnesium sulphite hydrates by online Raman spectroscopy

Steindl, Michael; Röder, Thomas; Simharl, Reinhold; Harasek, Michael; Friedl, Anton; Sixta, Herbert; Weber, Hedda
2004 in Lenzinger Berichte 83 (SPRINGER)

Online Raman monitoring of the phase transition of magnesium sulphite hydrate

Steindl, Michael; Röder, Thomas; Simharl, Reinhold; Harasek, Michael; Friedl, Anton; Sixta, Herbert
2004 in CHEMICAL ENGINEERING AND PROCESSING (Elsevier Science)

Modeling of the acid sulfite pulping process.Problem definition and theoretical approach for a solution with the main focus on the recovery of cooking chemicals

Wolfinger, Martin; Sixta, Herbert
2004 in Lenzinger Berichte´83 (Elsevier Science)

TCF bleaching of hardwood pulps obtained in organic acid media for production of viscose-grade pulps

Dapia, Sonia; Sixta, Herbert; Borgards, Andrea; Harms, Haio; Parajo, Juan Carlos
2003 in Holz als Roh- und Werkstoff (Elsevier Science)

Study of determination of substituent distribution of viscoses

Lange, Thomas; Berger-Nicoletti, Elena; Kosma, Paul; Potthast, Antje; Sixta, Herbert
2003 in Lenzinger Berichte 82 (Elsevier Science)

A novel method for the determination of carbonyl groups in cellulosics by fluorescence labeling. 3.Monitoring oxidative processes

Potthast, Antje; Röhrling, Jürgen; Rosenau, Thomas; Borgards, Andrea; Sixta, Herbert; Kosma, Paul
2003 in BIOMACROMOLECULES (AMER CHEMICAL SOC)

Alkaline degradation kinetics and CE-separation of cello- and xylooligomers.Part I

Sartori, Jürgen; Potthast, Antje; Ecker, Alois; Sixta, Herbert; Rosenau, Thomas; Kosma, Paul
2003 in Carbohydrate Research (ELSEVIER SCI LTD)
ISSN: 0008-6215

Book section, Chapters in research books

Ionic liquids for the production of man-made cellulosic fibers - opportunities and challenges

Hummel, M.; Michud, A.; Tanttu, M.; Asaadi, S.; Ma, Y.; Hauru, L.K.J.; Parviainen, A.; King, A.W.T.; Kilpeläinen, Ilkka; Sixta, H.
2015 in Advances in polymer science (SPRINGER)
ISBN: 978-3-319-26013-6
ISSN: 0065-3195

Non-halide ionic liquids for solvation, extraction, and processing of cellulosic materials

Hummel, Michael; Laus, Gerhard; Schwaerzler, Alexander; Bentivoglio, Gino; Rubatscher, Egon; Kopacka, Holger; Wurst, Klaus; Kahlenberg, Volker; Gelbrich, Thomas; Griesser, Ulrich J.; Roeder, Thomas; Weber, Hedda K.; Schottenberger, Herwig; Sixta, Herbert
2010
ISBN: 0-8412-0006-8
ISSN: 0097-6156

Conference proceedings

Colours in a Circular Economy

Smirnova, Eugenia; Ilen, Elina; Sixta, Herbert; Hummel, Michael; Niinimäki, Kirsi
2016

SO2-ethanol-water (SEW) process: The process for future biorefineries

Iakovlev, Mikhail; You, Xiang; Yamamoto, Minna; Sklavounos, Evangelos; Sixta, Herbert; van Heiningen, Adriaan
2013

Oxygen delignification of conventional and high alkali cooked softwood kraft pulps of different kappa numbers in a flowthrough reactor

Jafari, Vahid; Sixta, Herbert; Van Heiningen, Adriaan
2013

Carboxymethyl xylan from birch pulp and its adsorption on softwood kraft pulp fibres

Alekhina, Marina; Sixta, Herbert
2011

Fractionation of birch wood by a hot water treatment

Borrega, Marc; Sixta, Herbert
2011

Production of cellulosic pulp by subcritical water extraction followed by mild alkaline pulping

Borrega, Marc; Sixta, Herbert
2011

Controlled cellulose depolymerization by enzymatic treatment

Gehmayr, Verena; Sixta, Herbert
2011

Effect of activated charcoals on lignin and carbohydrates in solution

Gütsch, Jenny Sabrina; Sixta, Herbert
2011

Fractionation of birch, spruce and pine in 1-ethyl-3-methylimidazolium acetate

Hauru, Lauri K.J.; Hummel, Michael; Sixta, Herbert
2011

Extensional rheology of cellulose-ionic liquid solutions

Hummel, Michael; Michud, Anne; Sixta, Herbert
2011

Progress and challenges in the selective isolation of xylan from hardwood

Sixta, Herbert
2011

Progress and challenges in the isolation of xylan from Eucalyptus wood

Sixta, Herbert; Guetsch, J.; Nousiainen, T.; Wollboldt, P.
2011

Progress and challenges in the separation and purification of xylan from hardwood

Sixta, Herbert; Borrega, Marc; Testova, Lidia; Costabel, Luciana; Alekhina, Marina; Gütsch, Jenny Sabrina
2011

Stabilisation of wood carbohydrates after acidic pre-hydrolysis prior to alkaline pulping

Testova, Lidia; Sixta, Herbert
2011

Depolymerization pattern of microcrystalline cellulose in sub- and supercritical water

Tolonen, Lasse; Aksoy, Berkan; Kruse, Andrea; Sixta, Herbert
2011

Studies on the treatment of birch with the ionic liquid 1-ethyl-3-methylimidazolium acetate

Hauru, Lauri; Hummel, Michael; Sixta, Herbert
2010

Studies on the treatment of birch and spruce with the ionic liquid 1-ethyl-3-methylimidazolium acetate

Hauru, Lauri K.J.; Hummel, Michael; Sixta, Herbert
2010

Dialkyl phosphate-related ionic liquids as advantageous solvation and fractionation media for (ligno)cellulosic materials

Hummel, Michael; Sixta, Herbert; Froschauer, Carmen; Weber, Hedda K.; Kahlenberg, Volker; Laus, Gerhard; Schottenberger, Herwig
2010

Extensional rheology of cellulose-ionic liquid (1-ethyl-3-methylimidazolium acetate) solution.

Lehtonen, Heini E.; Plog, Jan P.; Ingildeev, Denis; Sixta, Herbert; Hummel, Michael
2010

Detailed Mass Balance of Birch Autohydrolysis

Testova, Lidia; Pynnönen, Henna; Tenkanen, Maija; Sixta, Herbert
2010

Synthesis of acidic xylooligomer model compounds

Herok, Wilhelm; Abad-Romero, Beatriz; Sixta, Georg; Gruber, Clemens; Sixta, Herbert; Kosma, Paul
2009

A round robin test on gel permeation chromatography of cellulose: Coming closer to a standard protocol

Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Saake, Bodo; Lebioda, S.; Vorwerk, Wetzel; Koschella, Andreas; Heinze, Thomas; Strobin, G.; Sixta, Herbert; Strlic, M.; Isogai, A.
2009

Multifunctional Alkaline Pulping

Schild, Gabriele; Sixta, Herbert
2009

Recent developments in Kraft pulping chemistry and technology

Sixta, Herbert
2009

Biorefinery opportunities for the pulp industry

Sixta, Herbert
2009

New generation dissolving pulp

Sixta, Herbert
2009

New generation kraft process

Sixta, Herbert
2009

Neue Herausforderungen fuer die Zellstoff- und Celluloseindustrie

Sixta, Herbert
2009

Effect of prehydrolysis on lignin structure: a comparative study of Eucalyptus globulus MWL and lignin model compounds

Leschinsky, Moritz; Fasching, Maria; Wollboldt, R.Petra; Zuckerstaetter, Gerhard; Weber, Hedda K.; Sixta, Herbert
2007

Modeling of Eucalyptus globulus Kraft Pulping

Sixta, Herbert; Rutkowska, Ewa W.
2007

Water Prehydrolysis of E. globulus with emphasis on the formation of insoluble components

Sixta, Herbert; Leschinsky, Moritz; Patt, Rudolf
2007

Multistage sulfite pulping studied by lignin model reactions

Kandioller, Gottfried; Griebl, Andreas; Weber, Hedda; Sixta, Herbert; Fasching, Mario
2006

Ionic liquids: Potential for applications in cellulose processing

Laus, Gerhard; Bentivoglio, Gino; Schottenberger, Herwig; Kahlenberg, Volker; Röder, Thomas; Sixta, Herbert
2006

Kinetics of delignification and viscosity loss in kraft pulping of Eucalyptus globulus

Rutkowska, Ewa W.; Sixta, Herbert; Weber, Hedda K.
2006

Crystallinity determination of man-made cellulose fibers - comparison of analytical methods

Röder, Thomas; Moosbauer, Johann; Fasching, Mario; Bohn, Andreas; Fink, Hans-Peter; Baldinger, Tom; Sixta, Herbert
2006

Behaviour of alklai-soluble xylan during kraft cooking and oxygen delignification

Sixta, Herbert; Möderl, Susanne; Wollboldt, R.Petra
2006

Modeling of Eucalyptus globulus kraft pulping

Sixta, Herbert; Rutkowska, Ewa W.
2006

Isolation, synthesisand derivatization of xylodextrins

Abad-Romero, Beatriz; Rosenau, Thomas; Potthast, Antje; Kosma, Paul; Haltrich, Dietmart; Sixta, Herbert
2005

Determination of functional groups in cellulosic substrates

Bohrn, Rainer; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert
2005

Determination of functional groups in cellulosic substrates: A novel diazo reagent for the fluorescence labeling of carboxyl groups

Bohrn, Rainer; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert
2005

A novel approach for the determination of carbonyl groups for pulps insoluble in LiCL/DMAc by fluorescence labeling

Kostic, Mirjana; Potthast, Antje; Rosenau, Thomas; Sixta, Herbert; Kosma, Paul
2005

Oxidation of reducing endgroups in cellulose according to different approaches

Nagel, G.; Potthast, Antje; Sixta, Herbert; Kosma, Paul
2005

A novel approach to assess xanthate group distribution in visose

Rußler, Axel; Saake, Bodo; Potthast, Antje; Puls, Jürgen; Sixta, Herbert; Kosma, Paul
2005

Prediction of changes of molecular weight distribution during degradation of cellulose substrates

Sixta, Herbert; Ecker, A.
2005

Monitoring heterogeneous and homogeneous degradation processes of a multimodal distributed dissolving pulp by gel permeation chromatography and computer simulations

Sixta, Herbert; Ecker, A.
2005

Prediction of changes of molecular weight distribution during degradation of cellulose substrates

Sixta, Herbert; Ecker, A.
2005

Orientation and crystallinity of cellulose fibres - the classical WAXS method versus Raman spectroscopy

Röder, Thomas; Zipper, Peter; Sixta, Herbert
2004

Fiber surface and inner layer analysis of the polysaccharide composition in sulfate and sulfite dissolving pulps using enzymatic peeling and CZE

Sjöberg, J.; Potthast, Antje; Rosenau, Thomas; Kosma, Paul; Sixta, Herbert; Gradinger, C.
2004

Determination of carbonyl functions in cellulosic substrates

Roehrling, J.; Potthast, A.; Rosenau, T.; Kosma, P.; Sixta, Herbert
2003

Thermal treatment of cellulose pulps and its influence to cellulose reactivity

Röder, Hedda K.; Sixta, Herbert
2003

Recent trends in manufacturing and application of cellulose based materials

Sixta, Herbert; Firgo, Heinrich
2003

Mass balance of a MgO-SO2 recovery system - modeling and measurement

Steindl, Michael; Wolfinger, Martin G.; Friedl, Anton; Sixta, Herbert
2003

Modeling - a tool to improve the efficiency of magnesium bisulfite recovery

Wolfinger, Martin; Steindl, Michael; Yaldez, Rolf; Mühlbacher, Ralph; Sixta, Herbert
2003

Non-refereed scientific articles

Unrefereed journal articles

No matter of course: Ionic liquids as SO2-selective gas absorbers

Froschauer, C.; Weber, H.; Roeder, T.; Sixta, H.; Laus, G.; Lendl, B.Schottenberger
2013 in Lenzinger Berichte (Johann Heinrich von Thunen-Institute (vTI), Universität Hamburg)
ISSN: 0024-0907

Dissolving pulps from enzyme treated kraft pulps for viscose application

Gehmayr, V.; Sixta, H.
2011 in Lenzinger Berichte (Johann Heinrich von Thunen-Institute (vTI), Universität Hamburg)
ISSN: 0024-0907

The high-temperature adsorption on activated charcoal: new possibilities in autohydrolysate treatment

Guetsch, S.S.; Sixta, H.
2011 in Lenzinger Berichte (Johann Heinrich von Thunen-Institute (vTI), Universität Hamburg)
ISSN: 0024-0907

Unrefereed conference proceedings

Cellulosic fibres from novel Ionic liquid-recycled cotton solutions by dry-jet wet spinning

Asaadi, Shirin; Hummel, Michael; Sixta, Herbert
2014

High tenacity cellulosic fibres from novel ionic liquid-cellulose solution by dry-jet wet spinning

Asaadi, Shirin; Michud, Anne; Hummel, Michael; Sixta, Herbert
2014

Mechanistic studies of furfural formation from xylose in catalyzed and non-catalyzed microwave-assisted reactions

Ershova, Olga; Kanervo, J.; Lehtonen, Juha; Sixta, Herbert
2014

Novel insight in carbohydrate degradation during alkaline treatment

Nieminen, Kaarlo; Paananen, Markus; Testova, Lidia; Sixta, Herbert
2014
ISBN: 978-84-616-9842-4

Swelling and dissolution of crystalline cellulose in subcritical and supercritical water

Tolonen, L.; Bergenstrahle-Wohlert, M.; Wohlert, J.; Sixta, H.
2014

Lignocellulosic valorization: Lignocellulosic biomass valorization towards platform chemicals

Balu, Alina Mariana; Ershova, O.; Luque, R.; Sixta, H.
2013

Valorization of lignocellulosic biomass towards sustainable chemicals, materials and fuels

Balu, Alina M.; Ershova, O.; Sixta, H.
2013

Reactivity of Eucalyptus dissolving pulps: a measure based on acetylation kinetics

Bonfiglio, F.; Sixta, H.
2013

On cooking and TCF bleaching of dry Eucalyptus camaldulensis chips

Fiskari, J.; Vihelä, T.; Ruuttunen, K.; Ali-Rekola, V.; Hautala, S.; Sixta, H.
2013

Comparison of TCF sequences in the bleaching of Eucalyptus Camaldulensis pulp

Fiskari, J.; Savela, M.; Ruuttunen, K.; Ali-Rekola, V.; Kilpeläinen, P.; Sixta, H.
2013

Fractionation of hemi-rich pulp into cellulose and hemicellulose using an IL/cosolvent mixture

Froschauer, C.; Hummel, M.; Iakovlev, M.; Roselli, A.; Laus, G.; Schottenberger, H.; Sixta, H.
2013

High strength (870 MPa) cellulose filament spun from ionic liquid

Hauru, L.K.; Hummel, M.; Michud, A.; Asaadi, S.; Sixta, H.
2013

Applicability of various ionic liquids in dry-jet wet spinning of cellulose solutions

Hummel, M.; Michud, A.; Hauru, L.; Sixta, H.
2013

Kinetic study of oxygen delignification of high-kappa pine Kraft pulp in a flow-through reactor

Jafari, Vahid; Sixta, Herbert; van Heiningen, Adriaan
2013

Carboxymethylation and hydroxypropylation of birch kraft pulp xylan induce internal plasticization to enable barrier film formation

Mikkonen, K.S.; Laine, C.; Alekhina, M.; Sixta, H.; Tenkanen, M.
2013

Carbon-magnetite nanoparticle hybrids: toward advanced heterogeneous catalysts

Ojeda, Manuel; Balu, Alina M.; Ershova, Olga; Sixta, Herbert; Luque, Rafael; Romero, Antonio A.
2013

Effect of alkali concentration in kraft pulping with polysulfide and AQ/PS on polysaccharide degradation and dissolution

Paananen, Markus; Liitiä, Tiina; Sixta, Herbert
2013

Effects of pressurised hot water extraction on the structure of birch sawdust

Penttilä, Paavo A.; Kilpeläinen, Petri; Tolonen, Lasse; Suuronen, Jussi-Petteri; Sixta, Herbert; Willför, Stefan; Serimaa, Ritva
2013

Ioncell: Selective xylan extraction with ionic liquids

Roselli, Annariikka; Froschauer, Carmen; Sixta, Herbert
2013

Processing lignocellulosic materials in ionic liquids

Sixta, H.; Hummel, M.; Roselli, A.; Asaadi, S.; Hauru, L.; Tanttu, M.
2013

Progress in regenerated cellulose fiber production

Sixta, Herbert
2013

Advances in Dissolving Pulp Technology

Sixta, H.; Roselli, A.; Hummel, M.; Ruuttunen, K.
2013

Fractionation and structural characterisation of softwood kraft lignins

Alekhina, Marina; Ebert, Andreas; Ershova, Olga; Sixta, Herbert
2012
ISBN: 978-951-38-7880-1

Softwood kraft lignin from different cooking stages: fractionation, structural characterisation and potential application

Alekhina, Marina; Ebert, Andreas; Erdmann, Jens; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Biodegradable films from carboxymethyl xylan

Alekhina, Marina; Mikkonen, Kirsi S.; Tenkanen, Maija; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Identification of degradation products from birch wood in water extracts

Borreca, Marc; Niemelä, K.; Sixta, Herbert
2012
ISBN: 978-951-38-7880-1

Hot water extraction of wood as pretreatment for the production of high-purity dissolving pulps

Borrega, Marc; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Cellulose structure in birch pulps produced under various hot water extraction intensities; 3rd International Cellulose Conference

Borrega, M.; Testova, L.; Penttilä, P.P.; Tolonen, L.K.; Serimaa, R.; Sixta, H.
2012

Effect of urea on cellulose degradation under conditions of alkaline pulping

Ershova, Olga; Fernandes, António J.S.; Domingues, Rosário M.; Evtuguin, Dmitry V.; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Effect of pretreatment and cosolvent on the fractionation of birch with [emim]OAc

Hauru, L.K.J.; Ma, Y.; Hummel, M.; Sixta, H.
2012

Mechanistic studies on the regeneration of cellulose from ionic liquid solutions

Hummel, M.; Hauru, L.; Michud, A.; Sixta, H.
2012
ISBN: 978-952-10-8187-3

Evaluation of SO2-ethanol-water (SEW) dissolving pulp from spruce.

Iakovlev, M.; You, X.; van Heiningen, A.; Sixta, H.
2012

High yield oxygen delignification of high-kappa pine kraft pulp with PMS (peroxymonosulfate)

Jafari, V.; Sixta, H.; van Heiningen, A.
2012
ISBN: 978-952-10-8187-3

Degradation and crystallization of native cellulose with hydrogen chloride vapour

Kontturi, Eero; Meriluoto, Anne; Penttilä, Paavo; Potthast, Antje; Rosenau, Thomas; Malho, Jani-Markus; Serimaa, Ritva; Ruokolainen, Janne; Laine, Janne; Sixta, Herbert
2012

Influence of molecular mass distribution on the rheological behavior of cellulose/ionic liquid solutions during dry-jet wet spinning process

Michud, Anne; Arnoul-Jarriault, Benoît; Hummel, Michael; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

A computational model for simulating the kraft cooking process in a batch digester

Nieminen, Kaarlo; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Effect of alkali concentration in kraft pulping with or without anthraquinone addition on polysaccharide degradation and dissolution

Paananen, Markus; Liitiä, Tiina; Rovio, Stella; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Soda-anthraquinone pulping of alkaline pre-extracted birch wood, a novel pulping concept

Roselli, Annariikka; Testova, Lidia; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Alkaline degradation of cellulose upon acidic pretreatment and stabilisation

Testova, Lidia; Nieminen, Kaarlo; Penttilä, Paavo A.; Serimaa, Ritva; Potthast, Antje; Sixta, Herbert
2012

From birch to Soda-AQ pulps, pure xylan and fractions thereof HemiEx project overview

Testova, Lidia; Roselli, Annariikka; Costabel, Luciana; Sixta, Herbert
2012
ISBN: 978-951-38-7880-1

Sulfur-free production of paper-grade pulps from oxalic acid prehydrolysed birch wood

Testova, Lidia; Leppikallio, Mikko; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Extent of peak broadening in the gel permeation chromatography of cellulose dissolved in LiCl/DMAc applying narrow pullulan standard calibration

Tolonen, Lasse K.; Nieminen, Kaarlo; Sixta, Herbert
2012
ISBN: 978-952-10-8187-3

Influence of the molecular weight distribution of cellulose on the extensional rheology of cellulose-ionic liquid solutions

Hummel, M.; Michud, A; Sixta, H.
2011

Preparation of cellulose nanocrystals by hydrochloric acid vapor

Kontturi, Eero; Meriluoto, Anne; Penttilä, Paavo; Serimaa, Ritva; Laine, Janne; Sixta, Herbert
2011 in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY (AMERICAN CHEMICAL SOCIETY)
ISSN: 0065-7727

Simultaneous degradation and crystallization of native cellulose with gaseous hydrogen chloride

Kontturi, Eero; Meriluoto, Anne; Penttilä, Paavo; Potthast, Antje; Rosenau, Thomas; Serimaa, Ritva; Laine, Janne; Sixta, Herbert
2011
ISBN: 978-3-9502992-3-6

Dialkylimidazolium phosphate derivatives as solvents for lignocellulosic materials and their subsequent regeneration

Hummel, Michael; Froschauer, Carmen; Hauru, Lauri; Laus, Gerhard; Schottenberger, Herwig; Sixta, Herbert
2010

Hydrolysis of cellulose with gaseous hydrochloric acid

Kontturi, Eero; Meriluoto, Anne; Potthast, Antje; Rosenau, Thomas; Sixta, Herbert
2010

Recent Trends in Manufacturing and Application of Cellulose-based Materials

Sixta, Herbert
2010

Scientific books (monographs)

Book

Handbook of Pulp, Volume 1

Sixta, Herbert
2006

Handbook of Pulp, Volume 2

Sixta, Herbert
2006

Publications intended for professional communities

Article in professional journal

Recovery of acetic acid from wood extracts

Van Heiningen, Adriaan; Sixta, Herbert; Um, Byung-Hwan; Van Walsum, Peter
2009 in University of Maine System Board of Trustees, USA. Application: WO (Wiley-VCH)

Article in professional conference proceedings

Textile Fibers Production via a Novel Organosolv Fractionation Process

Le, Huy; Ma, Yibo; Borrega Sabate, Marc; Sixta, Herbert
2016

Isolation and characterization of sulfur-free lignin produced by Gamma-Valerolactone/Water fractionation of Eucalyptus wood

Lê, Huy Quang; Ståhl, Marina; Borrega Sabate, Marc; Sixta, Herbert
2016

Influence of lignin on morphology, rheology and consolidation of nanocellulose

Lê, Huy Quang; Dimic-Misic, Katarina; Maloney, Thaddeus; Sixta, Herbert
2016

Novel Biorefinery Concept Based on Gamma-Valerolactone/Water Fractionation

Lê, Huy Quang; Ma, Yibo; Borrega Sabate, Marc; Sixta, Herbert
2015

Novel Biorefinery Concept Based on Gamma-Valerolactone/Water Fractionation

Lê, Huy Quang; Ma, Yibo; Borrega Sabate, Marc; Sixta, Herbert
2015

Biorefinery Concept Based on Gamma-Valerolactone/Water Fractionation

Lê, Huy Quang; Ma, Yibo; Borrega Sabate, Marc; Sixta, Herbert
2015

Experimental thermodynamics for facilitation of the lignin removal from hardwood biomass

Zaitseva, Anna; Lê, Huy Quang; Pokki, Juha-Pekka; Alopaeus, Ville; Sixta, Herbert
2015

LIGNOCELLULOSICS VALORIZATION: TOWARDS PLATFORM CHEMICALS USING HETEROGENEOUS CATALYSIS

Ershova, Olga; Balu, Alina M.; Ojeda, Manuel; Luque, Rafael; Sixta, Herbert
2013

Published development or research report

Influence of xylan on nanocellulose (NFC) suspension rheology and aerogel morphology

Dimic-Misic, K.; Gane, P.; Budtova, T.; Pradille, C.; Sixta, H.; Lovikka, V.; Maloney, T.
2015

Ioncell-P, an ionic liquid based hemicellulose extraction method

Roselli, Annariikka; Sixta, Herbert
2015

Ioncell-P, ionic liquid based hemicellulose extraction method

Roselli, Annariikka; Sixta, Herbert
2015

Evaluation of ionic-liquid aided fractionation as an alternative to chemical pulping

Hauru, Lauri K.J.; Ma, Yibo; Hummel, Michael; Sixta, Herbert; King, Alistair W.T.; Kilpelainen, Ilkka
2013

Solution state of cellulose in ionic liquids

Hummel, Michael; Michud, Anne; Sixta, Herbert
2013

Development of recyclable ionic liquids for lignocellulose processing

King, Alistair W.T.; Holding, Ashley; Parviainen, Arno; Hauru, Lauri K.J.; Hummel, Michael; Sixta, Herbert; Kilpelainen, Ilkka
2013

Dry-jet wet spinning of cellulose/ionic liquid (IL) solutions

Michud, Anne; Hummel, Michael; Hauru, Lauri K.J.; Sixta, Herbert
2013

Actual and future trends in dissolving pulp manufacture

Sixta, Herbert; Iakovlev, Mikhail; Testova, Lidia; Roselli, Annariikka; Hummel, Michael; Borrega, Marc; van Heiningen, Adriaan
2013

Decomposition of cellulose in supercritical water for the production of water soluble cello-oligomers

Tolonen, Lasse K.; Roselli, Annariikka; Sixta, Herbert
2013

Delignification kinetics of birch wood autohydrolysis

Borrega, Marc; Nieminen, Kaarlo; Sixta, Herbert
2010

Feasibility of enzymatic bio-bleaching techniques of a kraft pulp for viscose application

Gehmayr, Verena; Sixta, Herbert
2010

Purification of eucalyptus globulus water prehydrolysis

Guetsch, Jenny S.; Sixta, Herbert
2010

Synthesis of model compounds related to alkaline-degraded xylosoligosaccharides

Herok, Willi; Milacher, Walter; Weber, Hedda; Sixta, Herbert; Kosma, Paul
2010

Applicability of extensional rheology for the characterization of cellulose-ionic liquid solutions

Hummel, Michael; Lehtonen, Heini; Heinämäki, Mikko; Sixta, Herbert
2010

Towards a comprehensive model of kraft cooking in a batch digester

Nieminen, Kaarlo; Sixta, Herbert
2010

Influence of autohydrolysis on lignin from birch wood

Rauhala, Tiina; King, Alistair W.T.; Zuckerstätter, Gerhard; Sixta, Herbert
2010

Hot water treatment for controlled dissolution of cellulose

Tolonen, Lasse; Kruse, Andrea; Sixta, Herbert
2010

Patents and invention disclosures

Patent

Recovery of Acetic Acid from Wood Extracts

Van Heiningen, A.; Sixta, H.; Um, B-H.; van Walsum, P.
2014

γ-valerolactone/water Fractionation of Softwood

Elsayed, Sherif; Le, Huy; Borrega Sabate, Marc; Sixta, Herbert
2017

Fast production of furfural from xylose using solid acid catalysts

Gomez Millan, Gerardo; Hellsten, Sanna; Llorca, Jordi; Sixta, Herbert
2017

Wood biorefinery based on γ-valerolactone/water fractionation

Le, Huy; Ma, Yibo; Borrega Sabate, Marc; Sixta, Herbert
2017

Production of furfural from xylose using solid catalysts

Gomez Millan, Gerardo; Hellsten, Sanna; Llorca, Jordi; Sixta, Herbert
2016

Solid acid catalyzed dehydration of xylose to obtain furfural

Gomez Millan, Gerardo; Hellsten, Sanna; Wilde, Nicole; Gläser, Roger; Llorca, Jordi; Sixta, Herbert
2016

Furfural formation from xylose in heterogeneous catalyzed reactions

Gomez Millan, Gerardo; Hellsten, Sanna; Llorca, Jordi; Sixta, Herbert
2015

Corrigendum to Thermostabilization of extremophilic Dictyoglomus thermophilum GH11 xylanase by an N-terminal disulfide bridge and the effect of ionic liquid [emim]OAc on the enzymatic performance (vol 53, pg 414, 2013)

Li, H.; Kankaanpää, A.; Xiong, H.; Hummel, M.; Sixta, H.; Ojamo, H.; Turunen, O.
2014 in ENZYME AND MICROBIAL TECHNOLOGY (Wiley-VCH)
ISSN: 0141-0229

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