China has done a lot of experimental research on the new process of leaching-extraction-electrowinning method to recover copper , and has achieved certain results. For example, a lot of experimental research work has been done on the new process of copper, and some achievements have been made. Copper Mountain copper for example, record iron ore tailings disposal, the application of this new technology recovery test a lot of research work on the flotation tailings of copper oxide, copper, semi-industrial pilot plant established on the basis of small-scale experiments, test The process is as shown below. Tests have shown that the use of acid leaching-extraction-electrowinning to recover copper from copper oxide ore flotation tailings is technically feasible. The tailings are leached by sulfuric acid. The copper grade of the tailings is reduced from 0.88 to 1.095% to about 0.3%. The leaching rate of copper can reach more than 65%. The extracting solution is extracted by copper extraction, and the extraction rate can reach 96~98%. The copper-rich solution obtained by back-extraction can be directly electrowinned to obtain an electric copper product having a purity of 99.95%. Pvc Sheet With Rug Gripper,Comfortable Rug Gripper,Many Shapes Rug Gripper,High Reputation Rug Pad Anyang Qunxiu Plastics co.,ltd , https://www.qunxu.com
The recovery of copper has a higher acid consumption, power consumption, high cost disadvantages and tailings of silver and gold and other precious metals can not be effectively recovered. Therefore, this process has not been applied to the industry to achieve industrial scale production.