Geochemistry of trace elements in the No.5 Coal from the Chuancaogedan Mine, Junger Coalfield

被引：0
|
作者：
Yang N. [1 ]
Tang S. [1 ]
Zhang S. [1 ]
Chen Y. [1 ]
机构：
[1] School of Energy Resources, China University of Geosciences(Beijing), Beijing
来源：
Earth Science Frontiers | 2016年 / 23卷 / 03期
关键词：
Coal; Geochemical features; Junger Coalfield; Trace elements;
D O I：
10.13745/j.esf.2016.03.010
中图分类号：
学科分类号：
摘要：
In order to ascertain the geochemical features of trace elements in the No.5 coal seam at Junger Coalfield's Chuancaogedan Coal mine, the mineral composition characteristics were observed through optical microscope, SEM and the X-ray Diffraction (XRD) method, the contents of trace elements in coal were determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS), and the occurrence of trace elements were then analyzed based on statistics. The results show that the contents of Li, Be, F, U, Hg in the No.5 coal seam is higher than that in the No.6 coal and Chinese coal. Li, F, Ga, Se are strong inorganic affinity elements, Be, As, U are organic affinity elements, and Hg is of significant positive correlation with sulfur content. Organic combination, inorganic compounds and sulfide bonded forms are the dominant occurrences of these trace elements in the No.5 coal. © 2016, Editorial Office of Earth Science Frontiers. All right reserved.
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页码：74 / 82
页数：8
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