Dewatering fine coal slurries using organopolysiloxanes

Details Dewatering fine coal slurries using organopolysiloxanes Dewatering fine coal slurries using organopolysiloxanes

1980-05-27

1981-09-22

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210729, 210732, 210770, 210778, 209 5, C02F 156

Patent

active

042908965

ABSTRACT:
Aqueous slurries of fine coal are dewatered by a process which comprises mixing an organopolysiloxane with the slurry, separating the slurry to recover the fine coal and further drying the fine coal, if desired. The use of water-soluble organopolysiloxanes or water-emulsifiable organopolysiloxanes provides improved separating and/or improved drying of fine coal in the dewatering process that is disclosed.

REFERENCES:
patent: 2587636 (1952-03-01), MacMullen
patent: 3294725 (1966-12-01), Findlay et al.
patent: 3700715 (1972-10-01), Berger
patent: 3729496 (1973-04-01), Berger
patent: 3817861 (1974-06-01), Slusarczuk et al.
patent: 3946061 (1976-03-01), Buckman et al.
patent: 4026880 (1977-05-01), Mitchell
patent: 4210531 (1980-07-01), Wang et al.

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