Sequential and selective flotation of sulfide ores...

Details Sequential and selective flotation of sulfide ores... Sequential and selective flotation of sulfide ores...

B - Operations, Transporting

03

D

B03D 1/012 (2006.01) B03D 1/014 (2006.01) B03D 1/018 (2006.01) B03D 1/06 (2006.01)

Patent

CA 2056119

A sequential flotation process for the separation of components of an ore containing sulfides of copper and molybdenum invol~~es initially effecting selective flotation of the copper component directly from the ore by conditioning the ore with a combination of a source of bisulfate ion and causticized starch to produce a conditioned ore having a pH between approximately 5.2 and 6.2, and thereafter treating the conditioned ore with a collector selected from the group consisting of dialkyl dithiophosphates and alkyl dithiophosphinates.

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