Coal beneficiation process

Details Coal beneficiation process Coal beneficiation process

1981-01-09

1983-11-01

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 51, 241 20, C10L 902, C10L 132

Patent

active

044128428

ABSTRACT:
Coal is beneficiated by slurrying coal particles of less than 200 microns in diameter with water. The slurry is cavitated with intense sonic agitation at a level of at least 15 joules/cm.sup.2. While the slurry is in the cavitated state, impurities and water are gravitationally separated from the slurry to produce a coal/water mixture having up to 40 percent by weight water, and preferably, 20 to 35 percent water with the balance coal.

REFERENCES:
patent: 2162200 (1939-06-01), Kiesskalt et al.
patent: 3577337 (1971-05-01), Kessler et al.
patent: 3640016 (1972-02-01), Lee et al.
patent: 4052169 (1977-10-01), Cole et al.
patent: 4054506 (1977-10-01), Hart, Jr. et al.
patent: 4090853 (1978-05-01), Clayfield et al.
patent: 4156593 (1979-05-01), Tarpley, Jr.
patent: 4326855 (1982-04-01), Cottell

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