Abstract: The main copper minerals in a copper oxide mine are cuprite and chrysocolla with Cu grade of 6.91%, oxidation rate of 98.30%, conjunction rate of 45.60%, which copper can be easily recovered by the sulfuric acid leaching process.The technical conditions for the sulfuric acid leaching process were studied, and the results showed that under the conditions of the dosage of sulfuric acid 185.6 kg/t, pulp density of 35%, the grinding fineness of -200 mesh 60% for leaching time of 1.5 h, the copper leaching rate reaches 95.51%.

Key words: Conjunction oxidized copper ore, Cuprite, Chrysocolla, Acid leaching