One hundred and fifteen bench-coal samples were taken from the No. 11 Coal Seam of the Carboniferous in Pingshuo Mining District. These samples were analyzed by ICP-MS, X-ray powder diffraction, SEM–EDX methods. The results indicate that the average Li content reaches 368.84 mg/kg. It is as much as 30 times higher than that of the world coals and 11 times higher than that of Chinese coals. The calculated total Li reserves reach to 259 kt, that is equivalent to, 56 kt Li2O in the No. 11 coal seam in the Pingshuo Mining District. The minerals in the coals are mainly clay, pyrite, and a minor amount of oxide and other minerals. The lithium tends to occur in clay minerals and mainly associated with inertinite maceral. The majority of Li in the No. 11 coal might have migrated from the underlying Yinshan Oldland or bauxite of the Benxi formation by absorption mechanism. The bauxite of the Benxi formation may be the most possible source of Li in the coal from the Pingshuo District.
BaiX.F., 2003. The distributions, modes of occurrence and volatility of trace elements in coals of China: Doctoral Thesis, China Coal Science Research Institute, Beijing, China, pp. 21–22. (in Chinese with English abstract).
2.
ChaiD.H.QuZ.M.ChenH.C. and ChaiF., 2001. Newdiscovery and industrial significance of rar rare-earth elements in shanxi bauxite. Light Metals06, 6–11.
3.
DaiS.F.LiD.ChouC.L.ZhaoL.ZhangY.RenD.Y.MaY. and SunY., 2008. Mineralogy and eochemistry of boehmite-rich coals: New insights from the Haerwusu Surface Mine, Jungar Coalfield, Inner ongolia, China. International Journal of Coal Geology74, 185–202.
4.
DaiS.F.RenD.Y.ChouC.L.FinkelmanR.B.SeredinV. V. and ZhouY.P., 2012. Geochemistry of trace elements in Chinese coals: A review of abundances, genetic types, impacts on human health, and industrial utilization. International Journal of Coal Geology94(1), 3–21.
5.
DengX.L., 2011. Coal-forming Environment and Trace Elements of No. 11 Coal Seam in Antaibao Mine: Master Thesis, Hebei University of Engineering, Handan, China, pp. 34.
6.
FinkelmanR.B., 1993. Trace and Minor Elementsin Coal. In: EngelM.H. and MackoS. (Eds.), Organic Geochemistry. Plenum Press, New York, pp. 593–607.
7.
FinkelmanR.B., 1995. Modes of occurrence of environmentally-sensitive trace elements of coal. SwaineD.J. and GoodarziF. (Eds.), Environmental Aspects of Trace Elements of Coal. Kluwer Academic Publishers, Dordrecht, pp. 24–50.
8.
KetrisM.P. and YudovichYaE.2009. Estimations of Clarkes for Carbonaceous biolithes: World averages for trace element contents in black shales and coals. International Journal of Coal Geology78(2), 135–148.
9.
LinM.Y. and TianL., 2011. Petrographic characteristics and depositional environment of the No. 9 Coal (Pennsylvanian) from the Anjialing Mine, Ningwu Coalfield, China. Energy Exploration & Exploitation29(2), 197–204.
10.
QinS.J.ZhaoC.L.LiY.H. and ZhangY., 2015. Review of coal as a promising source of lithium. International Journal of Oil, Gas and Coal Technology9, 215–229.
11.
QinY.WangW.F.SongD.Y. and ZhangX.Y., 2005. Geochemistry characteristics and sedimentary micro-environments of No.11 coal seam of the Taiyuan Formation of Upper Carboniferous in Pingshuo Mining District, Shanxi Province. Journal of Palaeogeography7(2), 249–260.
12.
RenD.Y.ZhaoF.H.DaiS.F.ZhangJ. and LuoK., 2006. Geochemistry of Trace Elements in Coal. Science Press, Beijing. pp. 556. (in Chinese with English abstract).
13.
SunY.Z.LiY.H.ZhaoC.L.LinM.Y.WangJ.X. and QinS.J., 2010a. Concentrations of Lithium in Chinese Coals. Energy Explorat Exploit28(2), 97–104.
14.
SunY.Z.QinS.J.ZhaoC.L. and KalkreuthW., 2010b. Experimental study of early formation processes of macerals and sulfides. Energy Fuels24, 1124–1128.
15.
SunY.Z.YangJ.J. and ZhaoC.L., 2012a. Minimum mining grade of associated Li deposits in coal seams. Energy Explorat Exploit30, 127–135.
16.
SunY.Z.ZhaoC.L.LiY.H.WangJ.X. and LiuS.M., 2012b. Li distribution and mode of occurrences in Li-bearing coal seam #6 from the Guanbanwusu Mine, Inner Mongolia, Northern China. Energy Explor Exploit30, 67–85.
17.
SunY.Z.ZhaoC.L.ZhangJ.Y.YangJ.J.ZhangY.Z.YuanY.XuJ. and DuanD.J., 2013a, Concentrations of valuable elements of the coals from the Pingshuo Mining District, Ningwu Coalfield, northern China. Energy Exploration & Exploitation31(5), 727–744.
18.
SunY.Z.ZhaoC.L.LiY.H.WangJ.X. and LinM.Y., 2013b. Li distribution and mode of occurrences in Li-bearing Coal Seam 9 from Pingshuo Mining District, Ningwu Coalfield, northern China, Energy Education Science and Technology Part A: Energy Science and Research31(1), 47–58.
19.
SunY.Z.ZhaoC.L.LiY.H. and WangJ.X., 2014. Minimum mining grade of the selected trace elements in Chinese coal. Journal of China Coal Society39(4), 744–748.
20.
YuzhuangSun, 2015. China Geological Survey Proved the Existence of an Extra-large Coal-Associated Lithium Deposit. Acta Geologica Sinica (English edition)89(1), 311–312.
21.
YuzhuangSunCunliangZhaoYanhengLi and JinxiWang, 2015. Anomalous Concentrations of Rare Metal Elements, Rare-scattered (Dispersed) Elements and Rare Earth Elements in the Coal from Iqe Coalfield, Qinghai Province, China. ACTA Geologica Sinica89(1), 229–241.
22.
TangX.Y. and HuangW.H., 2004. Trace Elements in China Coal, Beijing, pp. 3–11. (in Chinese with English abstract).
23.
TangM.Z. and LiuX.L., 1996. Geology and sedimentary environmental analysis of bauxite deposits in Ningwn, Shanxi. Journal of Geology and mineral resources in North China11, 580–585. (in Chinese).
24.
WangJ.X.LingP.YangJ.J. and ZhaoJ., 2013, Geochemical characteristics of hazardous trace elements in the coal from the Pingshuo mine district, China. World Journal of Engineering10(5), 463–470.
25.
ZhaoC.L., 2015. Distribution and enrichment mechanism of multi-metallic-elements associated with coal in Ordos Basin: Doctor Thesis. China University of Mining and Technology, Beijing, China, pp. 33.
26.
ZhuangX.G.WangP.ZhouJ.B.LiJ. and A.M.N., 2013. Geochemical characteristics of coal in Zhundong coal mining district. Xinjiang Geology31(1), 94–98. (in Chinese with English abstract).
27.
ZhuangX.G.ZengR.S. and XuW.D., 1998. Trace elements of the No. 9 coal in Antaibao strip mine, Pingshuo, Shanxi Province. Earth Sciences26, 583–587.
