Vinylamine copolymer flocculangts for use in coal refuse thicken

Details Vinylamine copolymer flocculangts for use in coal refuse thicken Vinylamine copolymer flocculangts for use in coal refuse thicken

1993-12-06

1995-08-15

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

209 5, 210725, 210734, C02F 156

Patent

active

054416493

ABSTRACT:
The invention provides a method for dewatering coal tailing aqueous slurries. The method including the step of adding to the slurry a flocculant composition including a vinylamine polymer including from about 1 to about 100 mole percent vinylamine and from about 1 to about 99 mole percent of at least one monomer selected from the group consisting of vinylformamide, vinyl acetate, vinyl pyrrolidinone, vinyl alcohol and the esters, amides and salts of acrylic acid and methacrylic acid.

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