METHOD OF PROCESSING CELLULOSE-CONTAINING MATERIAL Russian patent published in 2012 - IPC D21C1/02 D21C3/02 D21C9/10 D21C9/16 D21C11/04 C07G1/00 

FIELD: chemistry.

SUBSTANCE: method of processing cellulose-containing material involves prehydrolysis, boiling lignocellulose in a 30% hydrotropic solution, filtering the obtained cellulose, washing it with 30% hydrotropic solution, washing with water, bleaching the cellulose mass with hydrogen peroxide in sodium hydroxide solution to obtain bleached cellulose, treating with an acid solution and then with a solvent, filtering and drying, where treatment of the spent cooking liquor (filtrate) is carried out with water at temperature 50°C; lignin is filtered, washed and dried; the cellulose-containing material used is silver-grass or fruit coats of cereal crops or straws of cereal crops.

EFFECT: obtaining quality cellulose and native lignin from non-wood material using environmentally friendly technologies.

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