METHOD FOR DRESSING GOLD-BEARING ORES WITH HIGH SORPTION CAPACITY Russian patent published in 2018 - IPC B03D1/02 B03B1/00 

FIELD: mining.

SUBSTANCE: invention relates to the field of ore dressing by flotation, in particular to the flotation of gold-bearing ores, and can be used in the dressing of carbon-containing raw materials of various origins. Method for dressing gold-bearing ores with increased sorption capacity includes preliminary grinding, classification, conditioning of the pulp in an ultrasonic bath and subsequent flotation using butyl potassium xanthate. Grinding is carried out in an alkaline medium to a particle size of -0.071 mm. Ground pulp is sent for conditioning with the addition of hydrogen peroxide to the ultrasonic bath. After conditioning, the pulp enters the carbon flotation, where sorption-active carbon and graphite are isolated into the foam product, and the chamber product is sent to a sulphide flotation carried out in three stages. Two main stages of sulphide flotation are carried out using a depressor, alkaline foaming agent and collector, which is a mixture of butyl potassium xanthate and isobutyl potassium xanthate, and the purification flotation is carried out in the presence of the depressor.

EFFECT: increased extraction of valuable components in concentrate and improved quality of the concentrate.

1 cl, 4 dwg, 2 tbl