Results 201 to 210 of about 280,068 (258)

A review on chemical mechanisms of kraft pulping

Nordic Pulp and Paper Research Journal
Kraft pulping of wood is based on efficient depolymerization and solubilization of lignin, while cellulose is relatively undamaged. Non-cellulose cell wall polysaccharides are however in some cases heavily degraded, especially pectin and to a lesser ...
Mikael E Lindstrom, Ulf Germgard, Gunnar Henriksson   +2 more
exaly   +2 more sources

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Present and future of kraft pulping

Nordic Pulp and Paper Research Journal, 1997
Nils Hartler
exaly   +2 more sources

Processing of Miscanthus × giganteus stalks into various soda and kraft pulps. Part I: Chemical composition, types of cells and pulping effects

Cellulose, 2018
The weight share of the pith, nodes and internodes in the stalks of Miscanthus, as well as the types of cells in these anatomical parts, were examined.
Dariusz Danielewicz, Katarzyna Dybka-Stępień   +1 more
exaly   +2 more sources

Influence of Kraft Pulping on Carboxylate Content of Softwood Kraft Pulps

Industrial & Engineering Chemistry Research, 2006
This study characterizes changes in fiber charge, which is the carboxylate content of fibers, for two sets of kraft pulps:  (1) conventional laboratory cooked loblolly pine kraft pulps and (2) conventional pulping (CK) versus low solids pulping (LS) pulps.
Zheng Dang, Thomas Elder, Arthur J. Ragauskas   +2 more
openaire   +1 more source

Efficient separation of functional xylooligosaccharide, cellulose and lignin from poplar via thermal acetic acid/sodium acetate hydrolysis and subsequent kraft pulping

, 2020
Thermal acetic acid/sodium acetate hydrolysis (ASH) on poplar wood chips were carried out to obtain functional xylooligosaccharide, then the hydrolyzed wood chips were subjected to kraft pulping (KP) to fractionate cellulose and lignin.
Xiaohui Guo, Yingjuan Fu, Fawei Miao, Quanshui Yu, Na Liu, Fengshan Zhang   +5 more
semanticscholar   +1 more source

Biobleaching of kraft pulp

Process Biochemistry, 1992
Abstract This review reviews current research on the application of biotechnology to the bleaching of kraft pulp. Biobleaching research focuses on using white rot fungi, and ligninase and hemicellulase enzymes. Bleaching with white rot is generally very slow and the primary problems appear to be the control of cellulose degradation, the technical ...
Pratima Bajpai, Pramod K. Bajpai
openaire   +1 more source

Characterization of lignins from Populus alba L. generated as by-products in different transformation processes: Kraft pulping, organosolv and acid hydrolysis.

International Journal of Biological Macromolecules, 2019
The complexity and heterogeneity of lignin requires a detailed understanding in order to decide about more efficient lignin valorization approaches. This study deals with the characterization of lignins from Populus alba L.
R. Martín-Sampedro, J. Santos, Ú. Fillat, B. Wicklein, M. Eugenio, David Ibarra   +5 more
semanticscholar   +1 more source

Hydrothermal acid hydrolysis for highly efficient separation of lignin and xylose from pre-hydrolysis liquor of kraft pulping process

Separation and Purification Technology, 2019
In this study, the effect of traditional acidification and hydrothermal acid hydrolysis on the separation of lignin and xylose from the pre-hydrolysis liquor (PHL) of kraft pulping process was comparatively evaluated.
Xue Chen, Xuefei Cao, Shaoni Sun, T. Yuan, Shuang-fei Wang, Quentin Shi, R. Sun   +6 more
semanticscholar   +1 more source

Changes in accessibility of cellulose during kraft pulping of wood in deuterium oxide

Carbohydrate Polymers, 2014
Raili Ponni, Tapani Vuorinen
exaly   +2 more sources

Effect of Lignin Carbohydrate Complexes of Hardwood Hybrids on the Kraft Pulping Process

Journal of Wood Chemistry and Technology, 2017
Hasan Jameel, Fernando José Borges Gomes, Larisse Aparecida Ribas Batalha   +2 more
exaly   +2 more sources