CELLULOSE PRODUCTION PROCESS Russian patent published in 2000 - IPC

Abstract RU 2158326 C1

FIELD: paper-and-pulp industry. SUBSTANCE: cellulose is prepared by cooking wood in soda lye with 0.5- 1.5% 5-nitrobenzotriazole, to which 0.05-0.1% 1,4-dihydro-9,10- dihydroxyanthracene can also be added. EFFECT: increased yield of cellulose and reduced level of residual lignin. 2 cl, 1 tbl, 21 ex

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RU 2 158 326 C1

Authors

Kozlov I.A.

Kuznetsov B.N.

Dates

2000-10-27—Published

2000-03-10—Filed