METHOD FOR PRODUCTION OF NITROGEN-CONTAINING DERIVATIVES OF LIGNO-CARBOHYDRATE MATERIALS Russian patent published in 2002 - IPC

Abstract RU 2185394 C2

FIELD: resin industry. SUBSTANCE: invention relates to nitrogen- containing fertilizers and sorbents based on a variety of ligno-carbohydrate materials. Production method consists in that air-dry sample of cellulose sawdust is treated with ammoniacal solution of ammonium persulfate at vigorous mechanical crushing during 0.5-3.0 h at 20 C, observing amount of ammonia corresponding to 0.25-2.5 g per 1 g of sawdust. EFFECT: reduced expenses on raw material and reagents and considerably expanded technological possibilities. 5 tbl, 20 ex

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RU 2 185 394 C2

Authors

Pershina L.A.

Efanov M.V.

Galochkin A.I.

Klepikov A.G.

Dates

2002-07-20—Published

2000-07-10—Filed