Deinking composition for flotation and deinking method

Details Deinking composition for flotation and deinking method Deinking composition for flotation and deinking method

1993-02-01

1995-05-23

Knable, Geoffrey L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

25217422, D21C 502

Patent

active

054178088

ABSTRACT:
A deinking composition for regeneration of waste paper by floatation comprises 99.7 to 97% by weight of a mixture which comprises monoalkyl ethers of ethylene oxide/propylene oxide copolymers represented by the following general formulas (A) and (B) and the mixing ratio of the compound (A) to the compound (B) ranges from 10:90 to 90:10 (weight ratio); and about 0.3 to about 3.0% by weight of a polyoxyalkylene oxide selected from the group consisting of polyethylene oxides, polypropylene oxide and ethylene oxide/propylene oxide copolymers:

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