FIELD: hydrometallurgy. SUBSTANCE: high efficiency of finely dispersed ores and reduced harmful effect of noxious volatile compounds can be achieved by bringing ore into zone of electric spark charge simultaneously with leaching solution in the form of slurry at relation of liquid phase to solid phase of 1:0.5 to 1:2. Intensity of electric field is preset within 25 - 150 V/cm. At lixiviation of ores, ensured is multiple contacting of each batch of slurry with electric spark charge within interval of 0-4 mm from surface of electrodes. EFFECT: high efficiency. 2 cl, 3 tbl, 1 dwg
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