摘要
用逐级化学提取方法 ,分析了煤中有机质结合的微量元素含量与煤级关系。结果表明 ,有机态结合的微量元素在褐煤中含量比较高。烟煤中含量降低。到无烟煤阶段 ,有机态微量元素含量进一步降低。证明了随煤化程度增加 ,煤中有机态的微量元素含量降低。
For investigating the relationship between the organic affinity of trace elements and the rank of coal,the sequential extraction procedures for 12 coal samples have been carried out.The result show that the organic affinity of trace elements in brown coal is higher.In bituminous coal,the organic affinity of trace elements decreases.The organic affinity of trace elements decreases further in anthracite.It seems reasonable to assume that the organic affinity of trace elements decreases with the coal rank increasing.
出处
《煤田地质与勘探》
EI
CAS
CSCD
北大核心
2000年第6期11-12,共2页
Coal Geology & Exploration
基金
国家自然科学基金重点项目! (496 32 0 90 )资助
