硫化物矿物氧化反应动力学实验研究

doi:10.11867/j.issn.1001-8166.2004.01.0047

地球科学进展 ›› 2004, Vol. 19 ›› Issue (1): 47 -054. doi: 10.11867/j.issn.1001-8166.2004.01.0047

硫化物矿物氧化反应动力学实验研究

岳梅 ^1,2;赵峰华 ¹;朱银凤 ¹;丛志远 ¹;任德贻 ¹

中国矿业大学资源与地球科学系，煤炭资源教育部重点实验室，北京 100083；安徽理工大学，安徽淮南 232001

收稿日期:2002-10-19 修回日期:2003-05-12 出版日期:2004-01-20
通讯作者: 岳梅（1959-），女，安徽凤台县人，副教授，从事环境地球化学方面的教学和科研工作. E-mail:E-mail:yuemei8027@163.com
基金资助:
国家自然科学基金项目“典型中高硫煤矿区酸性矿坑排水有害元素的环境效应”(编号：40272128);教育部优秀博士基金项目“中国中高硫煤矿区酸性矿坑排水中有害元素地球化学与环境效应”(编号：200045)；安徽省教育厅自然科学研究基金项目“煤系黄铁矿氧化溶解地球化学动力学研究”（编号：2004kj104zd）资助

AN EXPERIMENTAL STUDY OF THE REACTION KINETICS OF SULFIDE MINERALS OXIDATION

YUE Mei ^1,2, Zhao Fenghua ¹, Zhu Yinfeng ¹, Cong Zhiyuan ¹, Ren Deyi ¹

1. Department of Resource & Earth Sciences, University of China Mining & Technology; Key Laboratory of Coal Resource, Ministry of Education, Beijing 100083, China; 
2. Anhui University of Sciences & Technology, Huainan 232001, China

Received:2002-10-19 Revised:2003-05-12 Online:2004-01-20 Published:2004-02-01

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硫化物矿床和含硫化物矿床（如中高硫煤）在开发过程中由于氧化作用向环境释放大量的酸、硫酸盐、重金属及其它有害物质，造成一定范围内的次生地球化学异常和环境污染；而中国大陆硫化物的排放量2010年将达到39．1×10 6 t。因此，人们对硫化物矿物在表生环境下的氧化行为日益重视。硫化物矿物的氧化速率受矿物本身物理化学特性（组成、结构、表面性质）和介质条件（溶解氧DO、Fe 3＋浓度、pH、Eh、温度及微生物）等多种因素的控制。在全面分析近年来国内外文献的基础上，系统介绍了硫化物矿物氧化动力学实验研究方法、实验参数的选择、反应机理、反应产物及反应速率等的研究现状。指出今后应加强对初始阶段的氧化反应速率、反应中间产物、多因素的综合作用、分子水平上的反应机理解释等方面的研究。

关键词: 硫化物矿物, 氧化反应动力学, 反应器, 反应速率, 反应产物

A lot of acid, sulfate, heavy metal and other hazardous substance have been released into environment during the process of the exploitation of sulfide or sulfide bearing deposit such as middle, high sulfur coal, which led to secondary geochemical anomalies and environment problem. The discharge amount of sulfide will reach to 39.1 million tons inside the Mainland China in 2010. Therefore, people are paying more attention to the behavior of sulfide minerals under epigenetic condition. The oxidation rate of sulfide minerals were controlled by the properties of physical chemistry such as composition, structure and surface properties of sulfide minerals, and the medium condition such as dissolved oxygen, Fe ³⁺ concentration, pH, Eh, temperature and microorganism. On the basis of reviewing recent literature, this paper reviews the experimental method of reaction kinetics of sulfide minerals oxidation, experimental condition and factors considered, reaction mechanism, reaction products and reaction rate. Finally, the authors point out that future study should focus on oxidation reaction rate of early stage, medium products, mutual effect of multifarious factors on reaction process and the mechanism of oxidation reaction kinetics of sulfide minerals on molecules level.

Key words: Sulfide minerals, Oxidation kinetic, Reactor, Reaction rate law, Reaction products.

中图分类号:

P594

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