| 초록 |
This article deals with modeling and simulation of high pressure leaching process of nickel-copper matte, with the perspective of getting insight on its operability. The modeling of this process was performed on a computer simulation package known as Aspen Plus, mainly to investigate the behavior of the process when flow rates and operating conditions are subjected to vary. For the nature of leaching process during the operation stage, the leaching mechanism of the matte is explained. Through simulation the effects of oxygen flow rate, operating temperature, and acid concentration were investigated. For optimal conditions of temperature, sulfuric acid concentration, and oxygen flow rate 75% of nickel, 18% of iron, 28.2% of copper, 12.5% of cobalt and 5% of zinc are extracted. |
