Promoters for froth flotation of coal

Details Promoters for froth flotation of coal Promoters for froth flotation of coal

1986-02-18

1987-07-07

Schor, Kenneth M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 106

Patent

active

046785612

ABSTRACT:
Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an effective proportion of a hydrophobic, non-ionic promotor which is a C.sub.10 -C.sub.30 nitrile or polynitrile thereof.

REFERENCES:
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patent: 2175093 (1939-10-01), Ralston et al.
patent: 2298281 (1942-10-01), Corley et al.
patent: 3298520 (1967-01-01), Bikales
patent: 3301400 (1967-01-01), Bikales
patent: 3353671 (1967-11-01), Bikales
patent: 4394257 (1983-07-01), Wang et al.
patent: 4452714 (1984-06-01), McCarthy

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