Fines in spruce TMP, BTMP and CTMP - chemical composition and sorption of mannans

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Sundberg A, Holmbom B
Publisher: AB SVENSK PAPPERSTIDNING
Publication year: 2004
Journal: Nordic Pulp and Paper Research Journal
Journal acronym: NORD PULP PAP RES J
Volume number: 19
Issue number: 2
Start page: 176
End page: 182
Number of pages: 7
ISSN: 0283-2631


Abstract

Only small amounts of O-acetyl-galactoglucomannans were sorbed onto fibres or fines from TMP, BTMP or CTMP, indicating a low surface coverage of cellulose. After deacetylation, about 30-45% of the galactoglucomannans were sorbed, the largest amount onto fibrils. Galactomannans (guar gum) were not sorbed onto flakes or ray cells. About 50% of the added galactomannans were sorbed onto fibrils from TMP or BTMP but only 25% onto CTMP fibrils.


Keywords

chemical composition, CTMP, fines, mannans, mechanical pulp, peroxide bleaching, sorption, TMP

Last updated on 2019-22-11 at 05:19