Process for the delignification of a chemical paper pulp with or

Details Process for the delignification of a chemical paper pulp with or Process for the delignification of a chemical paper pulp with or

1994-06-22

1995-07-11

Jones, W. Gary

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 78, D21C 916, D21C 320

Patent

active

054317819

ABSTRACT:
Process for the delignification of a chemical paper pulp by means of an organic peroxy acid, according to which the raw pulp arising from the cooking operation is treated with an aqueous solution of this organic peroxy acid, whose hydrogen peroxide content does not exceed 20% of the weight of the peroxy acid.

REFERENCES:
patent: 4400237 (1983-08-01), Kruger et al.
patent: 4793898 (1988-12-01), Laamanen et al.
patent: 4826568 (1989-05-01), Gratzl
C. W. Bailey, "Peroxyacetic Acid Bleaching of Chem Pulps", Tappi, Jan. 1966, vol. 49, #1, pp. 9-15.

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