Frothers demonstrating enhanced recovery of coarse particles...

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

B - Operations, Transporting

03

D

361/2

B03D 1/02 (2006.01) B03D 1/008 (2006.01)

Patent

CA 1270074

ABSTRACT The invention resides in a process and a composi- tion for recovering coal from raw coal which comprises subjecting the raw coal, in the form of an aqueous slurry or pulp, to a flotation process in the presence of a frother which comprises the reaction product of an aliphatic alcohol having from 4 to 6 carbon atoms, preferably 6 carbon atoms and from 1 to 5 moles of propylene oxide, butylene oxide or mixtures thereof.

483030

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