Delignification and bleaching of wood pulp with oxygen in the pr

Details Delignification and bleaching of wood pulp with oxygen in the pr Delignification and bleaching of wood pulp with oxygen in the pr

1973-11-05

1976-04-20

Lindsay, Jr., Robert L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Gas, vapor or mist contact

162 72, 162 90, D21C 910

Patent

active

039517322

ABSTRACT:
Wood pulp is delignified and bleached with oxygen in the presence of a mixture of an alkali, a magnesium compound and TEA.

REFERENCES:
patent: 2192202 (1940-03-01), Peterson et al.
patent: 2668110 (1954-02-01), Spencer et al.
patent: 3384533 (1968-05-01), Robert et al.
patent: 3423282 (1969-01-01), Rerolle et al.
patent: 3769152 (1973-10-01), Samuelson et al.
Rydholm, Pulping Processes, 1970, p. 839.

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