关键词: 电炉贫化铜渣, 氧化浸出, 铜浸出率, 铁精矿

Abstract: The electric furnace copper slag from a copper smelting plant contain copper content of 1.24% and iron content 31.80%,and the main iron ore exists in fayalite and magnetite phase.In order to determine the recycling and utilizing process for electric furnace copper smelting slag,the process conditions were studied.The results showed that under conditions of grinding fineness of 52.6 μm accounting for 90%,sulfuric acid concentration of 150 g/L,hydrogen peroxide dosage of 150 mL/kg,L/S ratio of 5 mL/g，leaching temperature of 60 ℃ for 60 min,low magnetic field intensity of 160 kA/m，such indexes as copper leaching rate of 67.15%,iron concentrate with iron grade of 56.01% and iron recovery rate of 62.38% were realized from copper slag with copper and iron well recovered.

Key words: Electric furnace copper slag, Oxidative leaching, Copper leaching rate,Iron concentrate