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http://dx.doi.org/10.7844/kirr.2017.26.3.47

Extraction of Lithium from Lepidolite through Intensive Grinding with Calcium Sulfate Hemihydrate Followed by Water Leaching  

Kim, Byoungjin (Dept. of Energy & Resources Engineering, Kangwon National University)
Kim, Suyun (Dept. of Energy & Resources Engineering, Kangwon National University)
Lee, Jaeryeong (Dept. of Energy & Resources Engineering, Kangwon National University)
Publication Information
Resources Recycling / v.26, no.3, 2017 , pp. 47-52 More about this Journal
Abstract
The concentrate of lepidolite, being treated by heavy medium separation (HMS), was ground with calcium sulphate hemihydrate (CSH, $CaSO_4{\cdot}1/2H_2O$) to investigate the mechanochemical effect for the Li leachability in water. This leachability increased, dramatically through the intensive grinding for the mixture, concentrate and CSH. The leachability of Li was improved from 4.48% to 93.5%. The grinding of the mixture destructed the crystal structure of the concentrate, and it might be formed to new compounds. As the result, Li in the concentrate can be extracted by water leaching at room temperature.
Keywords
Lepidolite; Lithium; Intensive Grinding; Water Leaching;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 U. Chon, G. C. Han, K. Y. Kim and K. H. Kim, 2010 : Current Status of Lithium Resources, J. of Korean Inst. of Resources Recycling, 19(3), pp. 3-8.
2 H. J. Ahn, J. W. Ahn, K. W. Lee and H. T. Son, 2014 : Recovery of Li from the Lithium Containing Waste Solution by D2EHPA, J. of Korean Inst. of Resources Recycling, 23(5), pp. 21-27.   DOI
3 J. H. Choi, W. T. Kim, W. R. Chae, S. B. Kim and H. J. Kim, 2012 : Electrostatically Controlled Enrichment of Lepidolite via Flotation, Materials Transactions, 53(12), pp. 2191-2194.   DOI
4 Ebensperger, A., Maxwell, P. and Moscoso, C., 2005 : The lithium industry: Its recent evolution and future prospects, Resources Policy, 30, pp. 218-231.   DOI
5 Kesler, S. E., Gruber, P. W., Medina, P. A., Keoleian, G. A., Everson, M. P. and Wallington, T. J., 2012 : Global lithium resources: Relative importance of pegmatite, brine and other deposits, Ore Geology Reviews, 48, pp. 55-69.   DOI
6 H. C. Jung, G. H. Kim, H. S. Hong and D. W. Kim, 2010 : Overview and future concerns for Lithium-Ion batteries materials, J. of Korean Powder Metallurgy Inst., 17(3), pp. 175-189.   DOI
7 Meshram, P., Pandey, B. D. and Mankhand, T. R., 2014 : Extraction of lithium from primary and secondary sources by pre-treatment, leaching and separation: A comprehensive review, Hydrometallurgy, 150, pp. 192-208.   DOI
8 Hien-Dinh, T. T., Luong, V. T., Gieré, R., and Tran, T., 2015 : Extraction of lithium from lepidolite via iron sulphide roasting and water leaching, Hydrometallurgy, 153, pp. 154-159.   DOI
9 Y. H. Jo, 2007 : Nano powder manufacturing technology using mechanochemical reaction method, J. of Ceramist., 10(1), pp. 7-14.
10 K. H. Lee, H. S. Jeon, S. H. Baek and S. G. Kim, 2012 : Development of Flotation System for Utilization of Low Grade Lithium Ore, J. of the Mineralogical Society of Korea, 25, pp. 1-10.   DOI