FIELD: pulp-and-paper industry. SUBSTANCE: pulp is treated with complexing agent at pH 3.5-11.0 and temperature 26-100 C. Delignification is effected by organic peracid or its salts at 50-140 C, while consumption of organic peracid and hydrogen peroxide added in delignification and bleaching stages constitutes less than 60% based on solid pulp weight. Washing is carried out at pH value equal to at least 4.0, after which pulp is bleached. EFFECT: enhanced efficiency of process. 10 cl, 9 tbl
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