FIELD: paper-and-pulp industry. SUBSTANCE: cooking liquor for cellulose that can be used for manufacturing different-destination fibrous materials contains elementary sulfur and dimethylhydrazine. EFFECT: improved quality of cellulose due to reduced content of residual lignin and reduced consumption of reagents, in particular, sodium hydroxide. 1 tbl, 8 ex
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Authors
Dates
2000-06-20—Published
1999-11-01—Filed