RESEARCH AND PRACTICE OF HEAPLEACHING-EXTRACTION-ELECTROWINNING OF REFRACTORY OXIDE COPPER ORE

There are 402.2 million tons oxide copper ore within abandoned top ore in Yongping Copper Mine,and the ore contains 2.002 million tons copper and is difficult to dealt with by ordinary process method.It achieved a acceptable result to recover the copper by using heapleaching-extraction-electrowinning,then a plant producing 200 tons copper a year was built.A series of improvement have been taken aimed to solve the problem in the line and have got a good economical result.