Journal
ENERGY EXPLORATION & EXPLOITATION
Volume 28, Issue 2, Pages 97-104Publisher
SAGE PUBLICATIONS INC
DOI: 10.1260/0144-5987.28.2.97
Keywords
Lithium in coal; Chinese coal; Coal associated deposit; Rare elements
Categories
Funding
- National Science Fundamental of China Project [40773040]
- Science Foundation of Hebei [D2009000832, D2008000727]
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Lithium is an important energy metal. Its concentrations in coals have been studied by many geologists. Its average content is only 14 mg/kg in the coals of the world. Lithium has never been reported as a coal associated deposit before. In order to study the concentrations in Chinese coals, 159 coal and gangue samples were taken from six coal mines and were determined by ICP-MS and the minerals in the samples were identified by X-ray powder diffraction. The results indicate that the Li contents in the coal samples from the Antaibao Coal Mine have reached the industry grade of coal associated deposits. In Tongxing Coal Mine, Li contents in the coal floor rock samples have reached the industry grade of independent lithium deposits. Main minerals are polylithionite, triphylite, zinnwaldite, lithionite and cookeite, which were transported into the peats. Therefore, lithium enriched most likely in the synsedimentary stage in both coal mines. Furthermore, a revised average Li content in Chinese coals was given.
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