D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 9/02 (2006.01) D21C 9/00 (2006.01) D21C 9/10 (2006.01)
Patent
CA 2138547
The following invention relates to a process for bleaching pulp, in which, after defibration, a first filtrate (2) containing metals, principally in ionic form, is separated off from pulp, in which the separated metals are supplied to a certain fibre quantity (I), which adsorbs the metals, which fibre quantity, during its further treatment, is at least not significantly negatively affected by the presence of the metals.
L'invention concerne un procédé de blanchiment de pulpe où, après défibrage, un premier filtrat (2) contenant des métaux, principalement sous forme d'ions, est séparé de la pulpe et où les métaux séparés sont amenés vers une certaine quantité de fibres (1) qui les adsorbe et ne subit pratiquement pas d'effets négatifs dus à la présence des métaux pendant la poursuite de son traitement.
Bergqvist Anders
Dahllof Hakan
Gl&v Management Hungary Kft
Gowling Lafleur Henderson Llp
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