FIELD: paper-and-pulp industry. SUBSTANCE: cellulose material is treated by peroxide compound in presence of stabilizer, in particular mineral salt deposition inhibitor represented by aqueous solution of mixture of sodium salts of nitriletrimethyl- and methyliminodimethylphosphonic acids. EFFECT: increased degree of delignification and reduced consumption of bleaching reagents. 2 cl, 2 tbl
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