Experimental investigation on pressure leaching of copper-zinc ore

This paper describes the experimental investigation on the pressure leaching of copper-zinc ore, where the analysis is given to impact of oxygen partial pressure, acidity, temperature, reaction time and additives, etc. on the leaching rate of copper and zinc. The test results show that under the leaching conditions of the oxygen partial pressure at 0.4MPa, acidity at 240g/L, temperature at 140℃, leaching time at 150min and additive dose at 0.10%~0.22%, the recovery rate of both copper and zinc could reach 97%.