铜阳极泥浮选尾矿铅、锑、铋定向分离试验

采用工业食盐浸出铜阳极泥浮选尾矿中的铅，硫酸和工业食盐浸出尾矿中的锑、铋，考察液固比、温度、时间、NaCl浓度、H₂SO₄浓度对浸出过程中铅、锑、铋浸出率的影响.研究结果表明:液固比（质量比，下同）为5:1，浸出温度为80 ℃，浸出时间为2 h，NaCl浓度为6 mol/L时，铅、锑、铋的浸出率分别为72.2 %、7.83 %和10.77 %.液固比为5:1，浸出温度为60 ℃，浸出时间为2 h，H₂SO₄浓度为3 mol/L时，锑、铋的浸出率分别为74.97 %和84.27 %.锑、铋水解回收后，水解液可循环利用. 

Directional separation experiments of Pb,Sb and Bi from copper anode slime flotation tailings

The effects of liquid-solid ratio, reaction temperature, reaction time, concentration of NaCl and concentration of sulfuric acid on the leaching rates of Pb, Sb and Bi were investigated by using Pb leached by NaCl, Sb, and Bi by sulfuric acid while NaCl leached from copper anode slime flotation tailings. The experimental results show that the leaching rates of Pb, Sb and Bi are 72.2 %, 7.83 % and 10.77 %, respectively, when the liquid-solid ratio is 5:1, the reaction temperature is 80 ℃, the reaction time is 2 h, and the concentration of NaCl is 6 mol/L. The leaching rates of Sb and Bi are 74.97 % and 84.27 %, respectively, when the liquid-solid ratio is 5:1, the reaction temperature is 60 ℃, the reaction time is 2 h, the concentration of sulfuric acid is 3 mol/L. The hydrolysis solution can be recycled after hydrolysis recovery of Sb and Bi.