Process for bleaching and delignification of lignocellulosic mat

Details Process for bleaching and delignification of lignocellulosic mat Process for bleaching and delignification of lignocellulosic mat

1992-02-20

1993-09-21

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Gas, vapor or mist contact

162 76, 162 78, 162 88, D21C 9147, D21C 916

Patent

active

052465438

ABSTRACT:
Delignification and bleaching of lignocellulosic material is enhanced after the pulp has been treated with peroxomonosulfuric acid.

REFERENCES:
patent: 3951733 (1976-04-01), Phillips
patent: 4372812 (1983-02-01), Phillips et al.
patent: 4404061 (1983-09-01), Cael
patent: 4568420 (1986-02-01), Nonni
Liebergott, "Oxidative Bleaching-A Review", 69th Annual Meeting Tech. Sect. Canadian Pulp & Paper Assoc., Feb. 1 and 2, 1983.
Zakis et al., "Action of Persulfate on Lignin, I" translated from Khimiya Drevesiny (Riza) 9:109-117 (1971).
Dupont Data Sheet; "Oxone.RTM. Monopersulfate Compound", Oct. 1976.

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