THE INFLUENCE OF PRESULFONATION ON THE EFFECTIVENESS OF ANTHRAQUINONEIN SULFITE CHEMIMECHANICAL PULPING OF NORWAY SPRUCE

Authors
LAI YZ KOJIMA Y CHEN HT
Citation
Yz. Lai et al., THE INFLUENCE OF PRESULFONATION ON THE EFFECTIVENESS OF ANTHRAQUINONEIN SULFITE CHEMIMECHANICAL PULPING OF NORWAY SPRUCE, Cellulose Chemistry and Technology, 27(3), 1993, pp. 299-305
Citations number
30
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Cellulose Chemistry and Technology → ACNP
ISSN journal
05769787
Volume
27
Issue
3
Year of publication
1993
Pages
299 - 305
Database
ISI
SICI code
0576-9787(1993)27:3<299:TIOPOT>2.0.ZU;2-B
Abstract
Presulfonation of Norway spruce chips significantly facilitated the an thraquinone-catalyzed sulfonation and delignification reactions in sul fite solutions at pH 9.8. The tear-tensile relationship of the chemime chanical pulp (CMP) fibers also improved. The strength development of sulfite CMP fibers depends more on the extent of lignin modification t han the apparent sulfonate content of the pulp.