Experimental Study on Pressure Leaching of Zinc Sulfide Concentrate and Discussion on the Latest Relevant Progress

In this paper, a typical zinc sulfide concentrate has been studied in detail by process mineralogy. Its main mineral composition and occurrence state of elements were identified. In addition, the effects of technological conditions such as temperature and acidity on the pressure leaching were investigated. The phase transformation of iron was analyzed and the related mechanism was explained. At the same time, the latest experimental progress in the field of zinc pressure leaching, such as leaching process, leaching kinetics, elemental behavior, and phase transformation in the process of pressure leaching, is also introduced.