FIELD: chemistry.
SUBSTANCE: invention relates to the technology of producing peroxyacids which can be used in delignification and bleaching cellulose materials in the textile industry. The method of preparing a peroxyacid solution for delignification and bleaching involves reaction of acetic acid and hydrogen peroxide in equimolar amounts in the presence of an acid catalyst - sulphuric acid and organophosphonate-nitriletrimethylene phosphonic acid with ozonation, with ozone consumption of 1-4 g/h.
EFFECT: high output of peroxyacid and high efficiency during delignification and bleaching.
1 cl, 2 tbl
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