Process for preparing a bleaching liquor containing percarboxyli

Details Process for preparing a bleaching liquor containing percarboxyli Process for preparing a bleaching liquor containing percarboxyli

1993-09-17

1996-12-31

Alvo, Steven

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 78, 562 6, 25218621, D21C 916

Patent

active

055890326

ABSTRACT:
A process for treating a substrate, e.g., lignocellulosic pulp or cellulosic pulps with a mixed peracid solution comprising percarboxylic acid and Caro's acid which results in a higher conversion rate of the active oxygen in the hydrogen peroxide in order to provide an inexpensive and effective delignification and/or bleaching solution and the process for making the mixed peracid solution.

REFERENCES:
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patent: 4334897 (1982-08-01), Goedecke et al.
patent: 4400237 (1983-08-01), Kruger et al.
patent: 4793898 (1988-12-01), Laamanen et al.
patent: 5220052 (1993-06-01), Troughton et al.
patent: 5246543 (1993-09-01), Meier et al.
G. F. Zakis et al. Khim Drev. (Riga), vol. 9, pp. 109-117 (Sep. 1971).

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