硫化物矿物的表面反应及其在矿山环境研究中的应用

The Surface Reaction of Sulfide Minerals and Its Application to the Study of Mine Environment

硫化物矿物的表面反应机理决定了以硫化物矿物为主的尾矿的重金属释放、吸附、解吸机制 ,其反应动力学与矿山环境污染程度存在内在联系。本文系统介绍了硫化物矿物的表面反应研究现状 ,包括反应机理、表面结构、表面位、反应产物、反应速率等 ,并指出了有待进一步研究的几个问题。

The surface reactions of sulfide minerals include surface oxidation, surface dissolution and surface adsorption. The release, adsorption and desorption of heavy metal elements from tailing are determined by the mechanism of the surface reactions of sulfide minerals. The contamination degree resulting from tailing is related to the surface reaction rate of sulfide minerals. Therefore, the studies of sulfide surface reactions are very important in the environmental evaluation and remediation of mines. This paper elaborates the research status of such sulfide surface reactions as reaction mechanism, surface structures, surface sites, reaction products and reaction rate, and deals with the progress of its application to mine environment. Some problems to be solved in the future study are also pointed out.