Method of removing toxic resin acids and fatty acids from pulp a

Details Method of removing toxic resin acids and fatty acids from pulp a Method of removing toxic resin acids and fatty acids from pulp a

1993-06-01

1994-11-29

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

162189, 210728, 210730, 210734, 210735, 210928, C02F 156

Patent

active

053687426

ABSTRACT:
A method is described for improving the removal of toxic resin acids and fatty acids from pulp and paper effluent and from other streams containing resins and fatty acids. The addition of an anionic material, such as albumin, gelatin, alginate or alginic acid prior to clarification with conventional or state of the art cationic coagulation clarification or retention will improve the removal of resin acids and fatty acids.

REFERENCES:
patent: 2937143 (1960-05-01), Goren
patent: 3377274 (1968-04-01), Burke et al.
patent: 3627680 (1971-12-01), Desbos
patent: 4089780 (1978-05-01), Svarz et al.
patent: 4536294 (1985-08-01), Guillet et al.
patent: 4565635 (1986-01-01), LeDu et al.
patent: 4738750 (1988-04-01), Ackel
patent: 5178770 (1993-01-01), Chung

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