METHOD OF FLOTATION CONCENTRATION OF ORES CONTAINING SULPHIDE MINERALS AND GOLD Russian patent published in 2012 - IPC B03D1/02 B03B1/00 

FIELD: process engineering.

SUBSTANCE: invention relates to mining, particularly, to concentration of mineral resources and may be used in deep treatment of ore and nonmetal mineral stock. Proposed method comprises ore crushing, preparing gas-water emulsion, saturation of mineral suspension with gas bubbles by mixing it with prepared gas-water mix, mineralisation of gas bubbles and their separation as flotation concentrate. Oxygen-water emulsion is produced by electrochemical method in forcing water through anode chamber of flow membrane electrolyser. Mineral suspension containing crushed ore is pre-saturated with hydrogen bubbles of 50 mcm-size, and smaller, by forcing it through cathode chamber of flow membrane electrolyser. Suspension discharged from cathode chamber is mixed with oxygen-gas emulsion to irradiate produced mix by light in the range of ultraviolet wavelength to be directed into flotation machine chamber wherein it is additionally saturated with air bubbles of common flotation fineness.

EFFECT: higher efficiency flotation concentration of ores.