Process for cooking and bleaching pulp

Details Process for cooking and bleaching pulp Process for cooking and bleaching pulp

1986-04-28

1989-01-24

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 301, 162 3011, 162 31, 162 33, 162 51, 423240, 423DIG3, D21C 1100

Patent

active

047999942

ABSTRACT:
A process for cooking and bleaching pulp in a closed system, wherein spent liquors from the cooking and the bleaching are recovered and their chemicals are regenerated and recycled as cooking and bleaching chemicals.

REFERENCES:
patent: 3909344 (1975-09-01), Lukes
patent: 4244779 (1981-01-01), Nieminen et al.
patent: 4288286 (1981-09-01), Fuller
patent: 4329199 (1982-05-01), Andersson et al.

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