RAW PLANT MATERIAL DELIGNIFYING METHOD Russian patent published in 2004 - IPC

Abstract RU 2233926 C1

FIELD: pulp-and-paper industry, in particular, production of cellulose for paper and cardboard and for chemical reprocessing.

SUBSTANCE: method involves treating raw plant material with 3-9%- hydrogen peroxide solution in 3-11%-ammonia solution at temperature of 6-100⁰C for 0.5-4 hours with liquid modulus of 20-60.

EFFECT: reduced pressure and delignifying time.

5 tbl, 14 ex

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RU 2 233 926 C1

Authors

Efanov M.V.

Galochkin A.I.

Averin R.Ju.

Dates

2004-08-10—Published

2003-06-30—Filed