Addition of thp or thp salt to pulping liquors to reduce or...

Details Addition of thp or thp salt to pulping liquors to reduce or... Addition of thp or thp salt to pulping liquors to reduce or...

D - Textiles, Paper

21

C

D21C 11/00 (2006.01) D21C 5/00 (2006.01) D21C 9/16 (2006.01) D21H 21/04 (2006.01)

Patent

CA 2407014

Pulping liquors used in the bleaching of pulps by hydrogen peroxide, and containing catalase-producing bacteria and/or catalase enzyme are treated with tris (hydroxymethyl) phosphine or a tetrakis (hydroxymethyl) phosphonium salt to kill the bacteria and destroy the enzyme.

L'invention concerne des lessives de cuisson s'utilisant dans le blanchiment de pâtes à papier à l'aide de peroxyde d'hydrogène, et qui contiennent des bactéries produisant de la catalase et/ou une enzyme de catalase ; ces lessives de cuisson sont traitées au moyen de tris (hydroxyméthyl) phosphine ou d'un sel de tétrakis (hydroxyméthyl) phosphonium afin d'éliminer les bactéries et de détruire l'enzyme.

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