CELLULOSE MANUFACTURE PROCESS Russian patent published in 2003 - IPC

Abstract RU 2213175 C1

FIELD: paper-and-pulp industry. SUBSTANCE: sulfite cellulose for paper, cardboard, and chemical processing comprises wood chips cooking with sulfite cooking solution in presence of 0.1-0.2% (based on the weight of absolutely dry cellulose) nonionic surfactant, namely mixture of poly(oxyethylene glycol) ethers of higher fatty alcohols. EFFECT: enhanced tar extraction efficiency and reduced consumption of surfactant. 2 tbl, 5 ex

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RU 2 213 175 C1

Authors

Khakimova F.Kh.

Kovtun T.N.

Noskova O.A.

Lekontseva O.V.

Dates

2003-09-27—Published

2002-10-07—Filed