Process for delignification of lignocellulose-containing pulp wi

Details Process for delignification of lignocellulose-containing pulp wi Process for delignification of lignocellulose-containing pulp wi

1998-02-19

1999-12-28

Alvo, Steven

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Gas, vapor or mist contact

162 76, 162 78, 162 83, 162 84, D21C 9147, D21C 9153, D21C 916

Patent

active

06007678&

ABSTRACT:
A process for the delignification and bleaching lignocellulosic-containing pulp, in which the pulp is delignified with an organic peracid or salts thereof, treated with a complexing agent, washed and subsequently bleached with a chlorine-free peroxide containing bleaching.

REFERENCES:
patent: 3867246 (1975-02-01), Hebber et al.
patent: 5091054 (1992-02-01), Meier et al.
patent: 5296099 (1994-03-01), Griggs et al.
patent: 5785812 (1998-07-01), Linsten et al.
Abstract, WO 9215752, dated Sep. 17, 1992.
J. Basta, L. Holtinger, W. Hermansson, P. Lundgren, Metal Management In TCF/ECF Bleaching Pulp and Paper, Chemistry and Chemical Technology, Third Edition, vol. 1, pp. 650-656.

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