Recovering copper by flotation using n-mercaptoalkyl amide...

Details Recovering copper by flotation using n-mercaptoalkyl amide... Recovering copper by flotation using n-mercaptoalkyl amide...

B - Operations, Transporting

03

D

361/4

B03D 1/02 (2006.01) B03D 1/012 (2006.01) B03D 1/06 (2006.01)

Patent

CA 1162335

Abstract of the Disclosure A process for recovering copper-bearing mineral sulfides from a froth-floated, metallurgical concentrate by admixing the concentrate with a sufficient amount of N-mercaptoalkyl amide to depress the copper-bearing mineral sulfides during a flotation and recovering the non-floating copper-bearing mineral sulfides from the flotation process. in an embodiment, copper-bearing mineral sulfides are subjected to flotation process in the presence of a flotation agent with recovery of floated metallurgical concentrate containing copper-bearing mineral sulfides and thereafter refloating the metallurgical concentrate with admixing with N-mercaptoalkyl amide depressant to recover the non-floating copper-bearing mineral sulfides.

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