矿山酸性水中硫的化学状态分析  

Chemical State Analysis of Sulfur in Acid Water Generated from Weathered Wastestone

作　　者：戴昭华[1] 王庆广[1] 谢光国[1] 吉昂[1] 马光祖[1] 

机构地区：[1]中国科学院生态环境研究中心,中国科学院上海硅酸盐研究所,地矿部岩矿测试技术研究所

出　　处：《分析测试技术与仪器》1994年第3期29-34,共6页Analysis and Testing Technology and Instruments

基　　金：国家自然科学基金

摘　　要：本文主要讨论用双晶高分辨Ｘ－射线荧光光谱法和ＳＵＬＳ程序解析硫的化学状态，并用本方法初步研究了德兴铜矿黄铁矿型废石风化产生的酸性水中硫的化学状态。用人工试样测定并解析表明，其分析相对误差对于Ｓ２－和Ｓ０小于６％，对于Ｓ４＋和Ｓ６＋小于１６％。德兴铜矿酸性水刚露出地表时，水中的硫主要以四价形式存在，在露出地表与空气接触后，四价的硫很快被空气中氧氧化成六价。This paper deals with cherubal stole of sulfur in add Whier generated form weathered wastestone of Dexing Copper Mine.The spectral distribution was scanned by double crystal X-ray fluoescence spcetrometer and analysed by SULS program which was set up on the beds of the principle of nonlinear least sqiare. According to the analytical results of the samples of known sulfur speciation, the relative error was less than 6% for S2-and S°, and less than 16% for S4+and S6+. This result is comparable with that obtained by infrared and chemical methods,the relatively analytical error of which was less than 15%.On the basis of tile analytical results it is considered that there were two speciess of sulfur in the acid water generated from the weathered wastestone of Dexing Copper Mine. The concentration of tetravalent sulfur in the acid water which was just flown off the wastestone dump was amounted to 72% of total silfur.

关 键 词：矿山 酸性水 硫 化学状态分析 双晶高分辨X-射线荧光光谱法 四价态 六价态 黄铁矿 

分 类 号：P578.12[天文地球—矿物学]