METHOD FOR FLOTATION SEPARATING MINERALS OF HEAVY METALS Russian patent published in 2017 - IPC C22B15/00 C22B19/00 B03B5/28 

FIELD: chemistry.

SUBSTANCE: method uses a selective collector M-TF, which is a mixture of dithiophosphate and thionocarbamate with a variable ratio of dithiophosphate and thionocarbamate depending on the proportion of pyrite and pyrrhotite in the sulphide ore, on the ratios of copper sulfides and sphalerite varieties in a collective concentrate and selective flotation operations. In the samples studied, copper sulfides are represented by primary and secondary minerals, as well as minerals from the group of faded ores. In the method for the flotation separating minerals of pyrrhotite-pyrite-containing ores as a collector, a combination of butyl xanthate and M-TF reagent is used at variable fraction ratio of the M-TF collector components in various flotation cycles.

EFFECT: decreasing the flotation of pyrite, pyrrhotite, increasing the flotation activity of the main minerals of copper - chalcopyrite, bornite and creating conditions for active flotation of tennantite, as well as mineral associations of gold.

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