FIELD: paper-and-pulp industry. SUBSTANCE: cellulose is subjected to hydrogen peroxide bleaching followed by washing, after which wash liquor is separated from cellulose by filtration. Filtrate is then treated with aluminum compounds to precipitate interfering substances, which are separated by filtration. Content of aluminum in filtrate after separation of precipitate does not exceed 2%. Filtrate is recycled into hydrogen peroxide bleaching stage. EFFECT: reduced hydrogen peroxide consumption. 10 cl, 3 tbl, 3 ex
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