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硫化物是自然界中常见矿物,在铅锌矿床中分布极其广泛(如黄铁矿、闪锌矿和方铅矿等),矿产资源的开采利用,使其大量暴露于地表,与Fe3+、溶解氧等发生氧化作用,释放出大量酸性废水(AMD)和重金属元素等有害物质,导致局部表生地球化学异常和环境污染。因此硫化物矿物氧化动力学实验研究对于表生成矿作用和矿山环境污染治理方面具有重要意义。本文以闪锌矿为主,探讨了硫化物矿物氧化反应动力学实验研究的进展及存在的问题,并提出表生条件下闪锌矿等硫化物氧化动力学研究的发展方向。
Sulfides are common minerals in nature. They are widely distributed in lead-zinc deposits (such as pyrite, sphalerite and galena). Exploitation and utilization of mineral resources make them abundantly exposed to the earth’s surface. Compared with Fe3 +, dissolved oxygen And other oxidative effects, release a lot of acidic wastewater (AMD) and heavy metals and other harmful substances, leading to local epigenetic epochs and environmental pollution. Therefore, the experimental study on the oxidation kinetics of sulphide minerals is of great significance for the surface mineralization and mine environmental pollution control. In this paper, the main progress of the experimental study on oxidation kinetics of sulfide minerals and the existing problems are discussed, and the development direction of the oxidation kinetics of sulfide such as sphalerite under surface conditions is also discussed.