Process for stabilization of the viscosity of wood pulps

Details Process for stabilization of the viscosity of wood pulps Process for stabilization of the viscosity of wood pulps

1990-07-12

1991-12-17

Kyle, Deborah L.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

162 6, 162 7, 162 76, 162 89, 162 65, D21C 304

Patent

active

050733010

ABSTRACT:
A process is described in which, by the addition of formamidinesulfinic acid in association with an ozone or ozone/oxygen treatment, the viscosity and strength of wood pulps are stabilized at the level that is obtained with use of conventional, chlorine-containing bleaching processes.

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Chemical Abstracts, vol. 6, No. 99, Abstract No. 40030K, Kolar et al., "Chemical Reactions in Chlorine Dioxide Stages of Pulp Bleaching".
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