METHOD FOR LEACHING OF OXIDISED AND MIXED COPPER-BEARING ORES AND PRODUCTS OF THEIR ENRICHMENT

摘要

FIELD: mining.;SUBSTANCE: invention is related to mining industry and may be used in underground or heap leaching of oxidised and mixed copper-bearing ores and products of their enrichment. Method includes irrigation of material by mine waters, aeration of ore material with free oxygen, collection of product solution. Irrigation of material is realised with mine waters after electrochemical treatment, having pH=2.2-2.5 as a result of processing and redox potential from 600 to 700 mV and containing dissolved oxygen in amount from 11 to 24 mg/l. Leaching is carried out until outgoing solution is exhausted.;EFFECT: increased extraction of copper from mining material, reduced cost of mining material aeration process.