Direct biological bleaching of hardwood kraft pulp with the fung

Details Direct biological bleaching of hardwood kraft pulp with the fung Direct biological bleaching of hardwood kraft pulp with the fung

1987-11-30

1989-05-16

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 1, 435171, 435277, 435278, 435911, D21C 910, C12R 1645

Patent

active

048307084

ABSTRACT:
There is provided a process for bleaching kraft hardwood pulp wherein the bleaching is done utilizing the fungus Coriolus versicolor wherein the pulp is treated with the fungus at a temperature and for a time sufficient for the bleaching to occur. The pulp may subsequently be sterilized after bleaching.

REFERENCES:
patent: 3406089 (1968-10-01), Yerkes, Jr.
patent: 3962033 (1976-06-01), Eriksson et al.
patent: 4162939 (1979-07-01), Yoshikumi et al.
patent: 4655926 (1987-04-01), Chang et al.
patent: 4690895 (1987-09-01), Farrel
Casey, "Pulp & Paper, 2nd Ed.", vol. I; Interscience Publishers, Inc., N.Y., 1960, pp. 456-457.
Martin et al., "Decolorization of Black Liquor with Polyporus Versicolor, a White Rot Fungus", TAPPI, vol. 52, No. 10; pp. 1975-1981, Oct. 1969.

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