Process for deinking wastepaper utilizing organoclays formed in

Details Process for deinking wastepaper utilizing organoclays formed in Process for deinking wastepaper utilizing organoclays formed in

1992-09-14

1994-08-09

Hastings, Karen M.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 8, D21F 502

Patent

active

053363728

ABSTRACT:
A process for deinking wastepaper, which comprises: (a) forming an organoclay deinking agent in an aqueous system; (b) contacting ink from wastepaper in the aqueous system with an amount of the organoclay deinking agent effective to deink the wastepaper; and ( c ) recovering deinked paper pulp from the aqueous system.

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patent: 4305781 (1981-12-01), Langley et al.
patent: 4710267 (1987-12-01), Elsby et al.
patent: 4816164 (1989-03-01), Presley
patent: 4867844 (1989-09-01), Dessauer
patent: 4935096 (1990-06-01), Gallagher et al.
patent: 5094716 (1992-03-01), Letscher

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