| 摘要 |
precious metal technology. SUBSTANCE: concentrates are subjected to pyrometallurgical processing and, more specifically, material is mixed with massicot, carbon reducing agent, and fluxes, after which mixture is melted and then separated into bullion, matte, and slag. The latter is then cupeled for its being desired silver-gold alloy. According to invention, massicot is metallic iron and reducing agent has carbon nature. Primary matte is further melted with metallic iron and calcium oxide additives. EFFECT: increased precious metals' recovery degree. 3 cl, 6 tbl
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