贵州水城矿区煤中砷、硒赋存形态研究  

The Mode of Occurrence of Arsenic and Selenium in Coal of Shuicheng Mining Area in Guizhou,China

作　　者：吴汉福[1] 田玲[1] 孙泽宽 李金辉[1] 邓红江[1] 张绪勇[1] 

机构地区：[1]六盘水师范学院化学与化学工程系,贵州水城553004 [2]贵州水城矿业(集团)有限公司汪家寨洗煤厂,贵州水城553009

出　　处：《化工设计通讯》2016年第6期143-144,共2页Chemical Engineering Design Communications

基　　金：贵州省教育厅自然科学基金项目(黔教科2009093);贵州省科技厅科学技术基金项目(黔科合LH字[2015]7630号)

摘　　要：为了控制燃煤As和Se环境污染,有必要对煤中As和Se的存在形态进行研究。以水城矿区汪家寨矿煤(14#)和那罗矿煤(18#)为研究对象,对煤采用连续化学浸提法进行连续浸提,得到As和Se的可交换态、硫化物结合态、有机物结合态及残渣态4种形态,并用原子荧光光度计测定各形态含量。研究结果表明,汪家寨矿煤(14#)和那罗矿煤(18#)中As和Se存在不同的形态分布特征。总体来看,2种煤中As主要以残渣态存在;Se主要以硫化物结合态和残渣态存在。In order to control arsenic and selenium pollution caused by coal burning, studies on the mode of occurrence of arsenic and selenium in coal.Sequential chemical extraction procedure was adopted to extract the arsenic and selenium in various forms from coal （14#） of the Wangjiazhai Mine and coal （18#） of Naluo Mine in Shuicheng mining area, which are namely to be obtained exchangeable, organic form, sulfide form and residual form, the contents of arsenic and selenium in various forms were determined by atomic fluorescene spectrometer.The research shows that sequential chemical extract method is efficient in determining the occurrence of arsenic and selenium in coal.It was also found that arsenic in 2 kinds of coal mainly form in residue, selenium mainly form in bound- sulfide residue.

关 键 词：煤 砷 硒 赋存形态 

分 类 号：TK16[动力工程及工程热物理—热能工程]