摘要
自然煤中硒的含量很低，对我国1315个煤样的分析资料统计，多数煤中硒含量在0.01-11mg/kg，平均约为2mg/kg。硒在煤中的赋存方式较为多样：黄铁矿是硒的重要载体；方铅矿、硒铅矿等含硒矿物亦可出现于煤中；硒还可以被粘土矿物吸附或与煤中有机物缔合。谷称“石煤”的晚古生代炭质泥岩中硒含量较高，利用不当则给人体健康带来危害。
The content of selenium in natural coal is quite low.Based on the syst ematic collections of 1315 coal samples in China ,most of the Se contents of co al in China range between 0.01mg/kg and 11mg/kg,and the average value is about 2mg /kg .The types of Se occurrence in coal vary:existing with the main carrier s-pyrite;rare minerals consisting of Se;being absorbed by clay minerals or c ohering with organic matter. The ' stone coal 'contains more Se in coal and due to the improper use of 'stone coal' Se can affect on the people health badly.
出处
《中国煤田地质》
2002年第B07期29-32,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)
