C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/49, 182/52
C02F 1/56 (2006.01) B01D 33/04 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01) C02F 11/12 (2006.01) C08F 120/56 (2006.01) C08G 65/08 (2006.01) C22B 1/00 (2006.01)
Patent
CA 2003200
Abstract An improved method for dewatering thin slurries of very fine clay or clay-like materials to yield high solids content filter cake, for example, 40% solids and greater, by the use of flocculating agent combinations involving polyethylene oxide- type flocculating agents and polyacrylamide-type flocculating agents. The method generally involves admixing the combination of flocculating agents with the slurry, dewatering the slurry by means of a mechanical dewatering apparatus and feeding the thickened slurry to a belt press filter.
Envirotech Corporation
Gowling Lafleur Henderson Llp
Laros Timothy J.
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