摘要
在煤中诸多微量元素中，氯的含量是比较高的一种元素。全国280个样品分析数据的统计，多数煤中含氯量处于50－500mg/kg，平均约220mg/kg。氯在煤中的赋存状态主要为：氯离子溶于孔隙水中；呈类质同象赋存于其他多种矿物中；独立矿物。煤中氯的较高含量给煤的利用带来的问题近年来引起人们的重视。
Among the trace elements in coal chlorine is one of the higher conte nt elements.Based on the systematic collections of 280 coal samples in China ,m ost of the Cl contents of coal in China range between 50mg/kg and 500mg/kg,and the average value is about 220mg /kg.The types of Cl occurrence in coal vary:Cl-ionic dissolved in porosity water;isomorphic substituting in mineral lattices ;Cl-mineral alone.The use of the coal rich in Cl leads to some consequences,w hich has aroused public attention in the recent years.
出处
《中国煤田地质》
2002年第B07期33-36,共4页
Coal Geology of China
基金
国家自然科学基金资助项目(编号49172114,49872054)
关键词
中国
煤
氯
丰度
赋存
环境影响
孔隙水
Cl in coal
content
occurrence
effect on environment
