FIELD: textile, paper.
SUBSTANCE: in accordance with preferable versions of this invention realisation, method and device are provided for continuous production of cellulose mass from suspension produced from ground hard wood, by means of its treatment at the first stage of boiling under conditions sufficient to reduce content of syringice acid (s-ligning) in hard wood compared to content of guaiac ligning in it (g-ligning), and subsequent treatment of suspension of ground hard wood at the second stage of boiling under conditions sufficient to reduce content of g-lignin that remain in it after the first stage of boiling.
EFFECT: reduced amount of cellulose mass wastes with specified Kapp number.
18 cl, 2 dwg, 1 ex
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