Method for improving pulp washing efficiency

Details Method for improving pulp washing efficiency Method for improving pulp washing efficiency

1993-06-22

1995-04-11

Jones, W. Gary

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With washing

162 72, 162 77, 162 82, D21C 502

Patent

active

054054982

ABSTRACT:
A process for enhancing pulp washing efficiency is disclosed. An anionic surfactant is added within the washing or pulping operation to enhance the removal of lignin and spent cooking chemicals from pulp.

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Blomberg, L., et al., "Organic Carry-Over in Kraft Pulp and Bleaching Discharges", Proceedings from TAPPI Pulping Conference, pp. 217-226 (1990).
Hise et al., "The Effect of Brown Stock Washing on the Formation of Chlorinated Dioxins and Furans During Bleaching", TAPPI Journal, 73(1):185-190 (1990).
Laxen, T., "Dynamic and Physical-Chemical Aspects of Sulphate Pulp Washing", Pulp and Paper Canada, 87(4):49-53 (1986).

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