METHOD OF ACTIVE LEACHING OF METALS FROM ORES AND CONCENTRATES Russian patent published in 2010 - IPC C22B11/00 C22B3/04 

FIELD: metallurgy.

SUBSTANCE: method involves supply of ores or concentrates in the form of pulp with solution of sodium chloride to electrical action zone. At that, electrical action is performed in two steps: at the first step - with electrodialysis in electrolysis unit with the space divided with porous membrane till hydroxyl-radicals, metastable hydric dioxide, ions of hydroxonium, gas-water emulsion enriched with active oxygen and/or chloride is produced in anode chamber, and gas-water emulsion enriched with hydrogen and alkali components is produced in cathode chamber. At the second step - jump-like voltage increase on electrodes to the values generating electric charge destroying membrane for anolyte pulp fraction to be mixed with catholyte pulp fraction and forming plasma shaped medium and secondary active reagent complexes.

EFFECT: increasing efficiency and intensity of leashing process.

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