The main development direction of copper oxide flotation research:
1 Equipment is large-scale, energy-saving and efficient, in order to improve the resource utilization of limited copper oxide ore to meet the growing demand for copper resources.
2 Strengthen the research of new drugs with low toxicity and high cost. It not only reduces the environmental pollution caused by chemicals, but also reduces costs and reduces labor demand.
3 Optimize the selection process and study the new flotation process, such as the microbial leaching method with low environmental pollution. The best way to obtain copper oxide beneficiation is to obtain a usable ore with high applicability, high utilization rate and high taste through an increasingly simplified process.
The relative molecular mass of copper oxide is 79.545, the density is 6.3-6.9 g/cm3, and the melting point is 1326 °C. Do not dissolve in water and ethanol, soluble in acid, ammonium chloride and potassium cyanide solution, slowly dissolve in ammonia solution. Copper oxide (CuO) is a black oxide of copper that is slightly water-absorptive.
The hot CuO can be reduced to copper by hydrogen, carbon or carbon monoxide.
Carbon monoxide: CuO + CO → Cu + CO2
Carbon: C + 2CuO → CO2 + 2Cu
Hydrogen: CuO + H2 → Cu + H2O