FIELD: pulp bleaching. SUBSTANCE: method includes, after defibration, separation from pulp of the first filtrate containing metals, mainly, in ionic form; introduction of these metals into definite quantity of fibrous mass adsorbing the metals. The fibrous mass is subjected to treatment which is not considerably and negatively affected by metals present in the mass. EFFECT: higher efficiency. 10 cl, 3 dwg
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Authors
Dates
1999-04-27—Published
1993-06-24—Filed