Methods for inhibiting the deposition of organic contaminants in

Details Methods for inhibiting the deposition of organic contaminants in Methods for inhibiting the deposition of organic contaminants in

1995-04-12

1996-07-16

Czaja, Donald E.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

1621681, 162174, 162199, 162DIG4, D21C 502

Patent

active

055363636

ABSTRACT:
Compositions and methods for inhibiting the deposition of organic contaminants from pulp in pulp and papermaking systems are disclosed. The methods add to the pulp or to the deposition prone surface of the papermaking system a composition comprising a polyvinyl alcohol having 50 to 100% hydrolysis and a high molecular weight gelatin having a molecular weight of about 100,000 or higher.

REFERENCES:
patent: 4871424 (1989-10-01), Dreisbach et al.
patent: 4886575 (1989-12-01), Moreland
patent: 4956051 (1990-09-01), Moreland
patent: 5474655 (1995-12-01), Schulte et al.
Pulp and Paper, James Casey, vol. III, 3rd ed., pp. 1587-1588.

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