黄铁矿的抑制及活化分选研究进展

黄铁矿资源储量大，共伴生有色金属价值高，在当下资源紧张和环境压力严峻的态势下，其高效清洁利用技术的开发意义重大。目前选矿界对含黄铁矿的有色金属硫化矿的浮选分离工艺主要是抑制黄铁矿，先回收其它有用金属矿物，随后再活化捕收黄铁矿。但是受黄铁矿晶体缺陷、化学成分差异等因素的影响，加之浮选体系的多样化和复杂化，浮选实践中常常出现黄铁矿与其他硫化矿物分离效果不理想，再活化效果不佳等问题。本文综合了国内外关于黄铁矿晶体微观物理化学结构、抑制剂及其抑制机理、活化剂及其活化机理方面的研究现状，对黄铁矿资源的综合利用具有一定的参考价值。 

Research Development of Depression and Activation Separation of Pyrite

Pyrite ore has large reserves of resources and contains high valuable associated nonferrous metals. Under the current situation of resource shortage and severe environmental pressure, it is of great significance to develop efficient and clean utilization technology. At present, the main process of flotation of nonferrous metal sulfide ores containing pyrite is to first recover other useful metal minerals with the inhibition of pyrite, and then activate and collect pyrite. However, due to the crystal defects and the difference in the chemical composition of pyrite and the diversity and complexity of the flotation system, there are some unsatisfactory shortcomings of re-activation and separation between pyrite with other minerals. In this paper, the research status and frontier of the microscopic physical and chemical structure of pyrite crystals, depressant and its mechanism, activator and its mechanism on pyrite at home and abroad were summarized. It has certain reference values for the comprehensive utilization of pyrite resources.