Polyamines as pyrrhotite depressant in a flotation process

Details Polyamines as pyrrhotite depressant in a flotation process Polyamines as pyrrhotite depressant in a flotation process

B - Operations, Transporting

03

D

361/25

B03D 1/01 (2006.01) B03B 1/04 (2006.01) B03D 1/02 (2006.01)

Patent

CA 1330125

ABSTRACT A method of flotation wherein a mixture of solid metallic sulfides including pyrrhotite are treated with a sulfide collector, a frothing agent and a water- soluble polyamine such as diethylenetriamine in an aqueous medium and a gas such as air is passed in bubble form through the aqueous medium containing the solid sulfides dispersed in the aqueous medium. The result of this method is that pyrrhotite isselectively depressed compared to other sulfides in the mixture.

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