以ITO(Indium-Tin-Oxide)废靶材为原料进行盐酸溶解、铝置换和电解,以回收金属铟.讨论了酸溶解、铟锡分离和电解的影响因素.得出用盐酸溶解,用量为理论用量的1.5～3倍,溶解温度在85℃时,靶材溶解迅速彻底.溶液温度为50℃时,用金属铟置换溶液中锡离子,再用薄铝片将铟离子置换出来,粗铟的回收率可达到97%.粗铟电解的最佳条件是[In]=50～100g·L-1,温度25℃,pH值2.5,电流密度60～80 A·m-1,槽电压330～350 mV,电解得到纯度99.995%的金属铟,金属铟总的回收率大于93%.
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