Coal beneficiation processes

Details Coal beneficiation processes Coal beneficiation processes

1979-11-05

1981-02-24

Hill, Ralph J.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209 9, 209172, B03B 104, B03B 544

Patent

active

042526396

ABSTRACT:
A method of beneficiating coal in which the coal is conditioned by agitating it in the presence of a dense halogenated hydrocarbon and a surface active agent to effect a transfer of surface water from the coal to mineral matter associated therewith and an agglomeration of the mineral matter and to envelop the coal in a film of the surface active agent. The conditioned coal is then introduced into a halogenated hydrocarbon bath having a specific gravity intermediate those of the coal and the mineral matter. The agglomerated mineral matter sinks to the bottom of the bath in the region of feedstock introduction, and the coal disperses in and migrates to the top of the bath.

REFERENCES:
patent: 2109234 (1938-02-01), Kennan
patent: 2165607 (1939-07-01), Blow
patent: 2686592 (1954-08-01), Miller
patent: 3098035 (1963-07-01), Aplan
patent: 3348675 (1967-10-01), Tveter
patent: 3349909 (1967-10-01), Studer

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