METHOD OF ELECTROLYTIC COPPER SLIMES PROCESSING Russian patent published in 1996 - IPC

FIELD: nonferrous metallurgy, processing of bearing gold and silver electrolytic copper slimes and facilitation of their extraction during electrolytic copper slimes processing. SUBSTANCE: method of gold-bearing materials processing provides for chlorine feeding into hydrochloric pulp with separation of phases and metals. Chlorine feeding in hydrochloric pulp is carried out an instant of its formation using air-gas stream in amount of 2.5 5 % of slimes mass and with volumetric ratio of air and chlorine of (4 - 5) : 1. Produced gold-bearing liquid phase is separated and solid phase is treated with excess of ammonia with separation of chloride-ammonium complex of silver with following its crushing. EFFECT: method allows to separate gold and silver and to increase their extraction during electrolytic copper slimes processing. 1 tbl