Promotors for froth floatation of coal

Details Promotors for froth floatation of coal Promotors for froth floatation 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

046785620

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-ionc promoter which is a C.sub.12 -C.sub.30 fatty alcohol or its C.sub.3 or higher alkoxylated derivative.

REFERENCES:
patent: 2690259 (1954-09-01), Anderson
patent: 4090972 (1978-05-01), Wang et al.
patent: 4253944 (1981-03-01), Hefner
Leja, Surface Chemistry of Froth Flotation, pp. 307-319, (1982).

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