METHOD OF FLOTATION DRESSING OF ORES CONTAINING SULPHIDE MINERALS AND GOLD Russian patent published in 2011 - IPC B03D1/02 B03B1/00 

FIELD: process engineering.

SUBSTANCE: invention relates to mining and may be used in deep processing of ore and barren mineral stock. Method comprises crushing ore, preparing has-water emulsion, saturating mineral suspension with gas bubbles by mixing it with prepared gas-water emulsion, mineralising gas bubbles and separating mineralised bubbles in the form of slime concentrate. Gas-water emulsion "oxygen-water" is prepared by photo electrochemical method in forcing water through anode chamber of direct-flow membrane crystalliser and subjecting it to UV radiation to produce high-activity ozone oxidiser, hydroxide radicals, and hydrogen dioxide. Mineral suspension containing crushed ore is pre-saturated with hydrogen bubbles, bubble size making 50 mcm and smaller, in forcing it through catalyser cathode chamber. With suspension escaping from cathode chamber, collector is added to suspension to be mixed with "oxygen-water" emulsion. Mix produced is fed into flotation machine chamber to be mixed and additionally saturated with air bubbles of standard flotation size.

EFFECT: higher efficiency.

2 cl