METHOD OF NOBLE METALS RECOVERY FROM ORES

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FIELD : metallurgy. SUBSTANCE : invention relates to extraction method of noble metals from ores of residual soils, placer and gold-ore deposits, including complex, containing uranium and other rare elements. Method includes heap leaching of ore in the form of ore pile by solvent of mixture of thiosulfate, sulphite and core ammine, processing of efficient solution by cementation and sorption. Before leaching ore pile is sprinkled by sulfurous solution. Received filtrate containing sour iron is oxidised by mixture of air and nitrose gas. Formed solution of oxide iron is acidulated and directed into recovery on ore pile up to total oxidation of ore, after what it is washed and neutralised. Neutralisation of ore is implemented by solution of ammonia, alkalis, soda or lime. EFFECT : upgraded efficiency of method. 5 cl, 2 tbl, 8 ex