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Methanol-reinforced kraft pulping

Journal Article · · Tappi Journal; (United States)
OSTI ID:6418287
The addition of methanol to a high-sulfidity kraft cook on Scandinavian softwood chips was studied under different process conditions. Delignification and the degradation of carbohydrates were accelerated, but the effect on delignification was greater. Thus, methanol addition improved selectivity. The positive effect of methanol could also be observed for modified kraft cooks having a leveled out alkali concentration and lower concentration of sodium ions and dissolved lignin at the end of the cook. Methanol addition had no discernible effect on pulp strength or on pulp bleachability.
OSTI ID:
6418287
Journal Information:
Tappi Journal; (United States), Journal Name: Tappi Journal; (United States) Vol. 76:3; ISSN TAJODT; ISSN 0734-1415
Country of Publication:
United States
Language:
English