APPLICATION OF HYDROMETALLURGICAL TECHNOLOGY FOR LOWER GRADE COPPER ORES IN YUNNAN

Lower grade copper ore resources distribute widly in Yunnan. It's difficuclty to get economicbenefit by traditional dressing and metallurgical methocls. The high quality No. 1 negative pole copper is produced by leaching-extraction-electrodeposion method. The method is characterized by lower investment andcost, higher benefit and nonpollution, and its position in copper industrial production is raising in Yunnan.