摘要
采用盐酸浸出-铝粉除锡工艺回收ITO废靶材中的铟和锡,研究发现,较佳的盐酸浸出条件为:始酸4mol/L,温度80℃,浸出时间2h,双氧水(浓度30%)为废靶用量的10%,铟浸出率可达99.9%,锡的浸出率为38%;较佳的铝粉除锡条件为:pH值为2,温度60℃,铝粉添加量为理论用量的2.1倍,锡的脱除率达99.8%,铟损耗率小于3%。
The optimum reaction conditions of indium and tin separation from ITO waste target by hydrochloric acid leaching process has been investigated.Indium leaching rate of 99.9% under 4mol/L of initial acid concentration and 10% of the added amount of hydrogen peroxide at 80℃ for 2 h。In addition to tin aluminum replacement process,get to pH = 2,temperature 60℃,the replacement time of 2h and aluminum powder is added in an amount of 2.1 times the theoretical amount is displacement conditions。By this method we obtain the leaching solution which removal rate of tin ions is 99.8%,and indium loss rate less than 3%.
出处
《湖南有色金属》
CAS
2015年第1期58-60,共3页
Hunan Nonferrous Metals
关键词
ITO
浸出
铟锡分离
ITO
leaching
indium and tin separation
