Frothers demonstrating enhanced recovery of coarse particles in

Details Frothers demonstrating enhanced recovery of coarse particles in Frothers demonstrating enhanced recovery of coarse particles in

1986-10-27

1988-11-08

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 114

Patent

active

RE0327786

ABSTRACT:
The invention is a process for recovering coal or mineral values from raw coal or mineral ore which comprises subjecting the raw coal or mineral ore in the form of an aqueous pulp, to a floatation process in the presence of a floatation collector, and a flotating amount of a floatation frother which comprises the reaction product of an alitphatic C.sub.6 alcohol and between about 1 and 5 moles of propylene oxide, butylene oxide or mixtures thereof, under conditions such that the coal or mineral values are recovered.

REFERENCES:
patent: 2448664 (1948-09-01), Fife
patent: 2611485 (1952-09-01), Tveter
patent: 2695101 (1954-11-01), Booth et al.
patent: 2695915 (1954-11-01), Groote
patent: 2782240 (1957-02-01), Hefner et al.
patent: 2950818 (1960-08-01), Moeller
patent: 3710939 (1973-01-01), Hostynek et al.

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