According to the occurrence state of rhenium and other metals,the oxidation leaching of rhenium-rich slag was carried out by sulfuric acid+nitric acid system.The influence of various factors on the leaching rate was investigated.The optimal experimental conditions are as follows:liquid-solid ratio 3:1,reaction time 2 h,leaching temperature 60 ℃,mass concentration of nitric acid 5％,mass concentration of sulfuric acid 15％,leaching rates of Re and Cu 94％and 95％,respectively,leaching rates of As and Bi 50％and 2％respectively.
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