METHOD OF BLEACHING CELLULOSE Russian patent published in 1998 - IPC

Abstract RU 2123080 C1

FIELD: pulp-and-paper industry. SUBSTANCE: cellulose is treated with hydrogen peroxide in alkali medium in presence of organic additive, namely, 2,2'-dipyridyl in quantity 0.02 to 1.0% based on weight of dry fibers. The latter can be used in various areas. EFFECT: increased whiteness of cellulose and extended choice of activation additives for peroxide bleaching. 1 tbl, 2 ex

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RU 2 123 080 C1

Authors

Medvedeva E.N.

Rybal'Chenko N.A.

Vershal' V.V.

Babkin V.A.

Sergeev A.D.

Dates

1998-12-10—Published

1997-06-18—Filed