Oxygen-alkali delignification of low consistency wood pulp

Details Oxygen-alkali delignification of low consistency wood pulp Oxygen-alkali delignification of low consistency wood pulp

1975-10-10

1977-01-11

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With agitation or forced circulation

8111, 162 65, 162 72, 162 90, D21C 910

Patent

active

040025268

ABSTRACT:
An process for increasing the yields of wood pulp and improving the viscosity of the pulp during oxygen-alkali delignification is provided whereby, in a wood pulp at a consistency of about 1-10%, there are present, in the pulp to be delignified, small amounts of ammonia or a compound which releases ammonia under the alkaline conditions of the process.

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