| 摘要 |
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 50C; 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. ^ 6 tbl, 4 ex |
