N902萃取分离铜锌混合液中铜的试验研究

Experimental study on extracting copper from copper and zinc mixed liquor with N902

采用萃取剂N902对高铁高锌溶液中的铜进行选择性萃取,最优条件为:N902浓度30%、混合时间2 min、相比(O/A)=1:1、温度20℃。经过三级逆流萃取,铜的萃取率达到96%以上。

Copper in leaching solution containing high concentration of copper and zinc was selectively extracted with N902, the optimum extraction condition was that N902 concentration is 30% , mixing time is 2 min, phase ra- tio （O/A） is 1 ： 1 and temperature is 20 ℃. After 3-stage counter-current extraction, the extraction rate of copper was achieved more than 96%.