Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5483831 | International Journal of Coal Geology | 2016 | 60 Pages |
Abstract
Compared to common Chinese and worldwide coals, the studied Jungar coals are much more enriched in Al (4.4-6.1%), Li (70-79Â mg/kg), and Ga (14-19Â mg/kg). Titanium, P, Sr, Zr, Nb, Th, Ta, Hf, and rare earth elements (REEs) are also enriched in the studied coals to some extent. Aluminum in the coals mainly occurs in the form of kaolinite and boehmite, whereas, lithium may be associated with aluminosilicate minerals (kaolinite and illite if present) as well as svanbergite. Gallium principally occurs in kaolinite, and to a lesser extent, svanbergite. Strontium, P, and LREEs (La, Ce, and Rr, Nd and Sm) mainly present in svanbergite. The source of Li and Ga in Jungar coals is most likely from the Yinshan Oldland region, but there is also a possibility of migration from bauxite of the Benxi formation.
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Authors
Jing Li, Xinguo Zhuang, Wei Yuan, Bo Liu, Xavier Querol, Oriol Font, Natalia Moreno, Jianfu Li, Temuer Gang, Guankao Liang,