FIELD: textile, paper.
SUBSTANCE: invention relates to a method of producing wood pulp. The method involves introduction and treatment of the raw material at the first stage of the treatment to produce wood pulp. The wood pulp pH for this procedure is between 9 and 11 at the stage of the method whereat the first suspension of the method is arranged. The first suspension of the method continues for at least 0.5 hour. The wood pulp is sorted to receive the first sorted mass and the first sorting waste. The first sorting waste is ozonised whose pH at the beginning of ozonisation is between 9 and 11. The ozonised first sorting waste at the second stage is purified in a way to have at least a part of it to go into the second sorted mass. The sorted masses are combined. The wood pulp produced in accordance with the method is used to produce paper products.
EFFECT: low energy consumption, prevention of corrosion of the operating units.
8 cl, 5 dwg, 4 ex
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