Abstract:Zinc oxide ores and zinc sulfide ores are main parts of zinc resources, with the increasingly demand for zinc and the growing consumption of zinc sulfide ores, the efficient utilization of zinc oxide ores will become an important means to solve the problem of zinc resource shortage, and smithsonite is concerned and studied by many researchers as a typical representative of zinc oxide mineral. In recent years, sulfidization flotation is widely used to treat zinc oxide ores, so the sulfidization is a key of this methodology. Based on the previous researches, this paper summarizes and analyzes the mechanism of surface sulfidization of smithsonite and the main factors affecting the sulfidization, and elaborates several methods to strengthen the surface sulfidization of smithsonite, it is pointed out that the the mechanism of surface sulfidization and enhanced sulfidization of smithsonite should be improved by means of interdisciplinary research and advanced detection and analysis methods. Meanwhile the research and development of new flotation techniques with efficient sulfidization - green cleaning will help the workers of beneficiation to better engage in production practice.