METHOD OF DELIGNIFICATION AND BLEACHING OF CELLULOSE MATERIALS

摘要

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