Frother composition and a froth flotation process for the...

Details Frother composition and a froth flotation process for the... Frother composition and a froth flotation process for the...

B - Operations, Transporting

03

D

361/27

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

Patent

CA 1265265

ABSTRACT A frother composition and a process for recovering mineral values from ore by subjecting the ore, in the form of an aqueous pulp, to a flotation process. The frother composition comprises the reaction product of 1) a polyhydroxy C1-20 alkane or polyhydroxy C3-20 cycloalkane, and 2) propylene oxide or a mixture of propylene oxide and ethylene oxide, with the proviso that at least 50 mole percent of a mixture is propylene oxide, wherein the reaction product has a molecular weight of between 150 and 1400. The frother composition and process of the invention is particularly effective in the floatation of fine mineral values wherein 75 percent or more of the ore comprise particles of a size of 75 micrometers or less. 33,232-F

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