FIELD: metallurgy.
SUBSTANCE: processing method of sulphide-oxidated copper ores with copper and silver extraction involves collective flotation of sulphide and oxidated copper minerals from crushed ore with extraction of collective concentrate. Then, leaching of collective concentrate is performed at mixing with water solution of sulphuric acid with participation of ozone, hydrogen peroxide and ions of ferric iron. Then, dehydration and washing of cake of concentrate leaching and copper extraction from copper-bearing solutions is performed. Copper and silver is extracted from cakes by flotation without using any foaming agent and using reagent of isobutyl dithiophosphate at pH 6-8 or reagent DSP017 containing isobutyl dithiophosphate and thionic carbamate.
EFFECT: increasing copper and silver extraction at processing of sulphide-oxidated copper ores.
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