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Perpectives of cyech lithium sources exploitation
 Brožek, Vlastimil ; Dufek, V.
In the mineral reserve balance of Czech republic there is filed more than 53 Mt of Sn-W ores with 0,208 - 0,286 % Li content, but unfortunately this low content did not lately allow to take advantage of their exploitation in competition with cheap processing e.g. of German company CHEMETALL. In sixtieth years after promising start of lithium carbonate production from zinnwaldite in Lachema Kaznějov the researchers of Institute of Chemical Technology Prague prepared metallic lithium by classical electrolytic process from chloride melt. The metal was destined first for lithium hydride an lithium aluminium hydride production. The establishing of such production failed from different reasons. The predominant part of domestic lithium sources is constituted as ferrous micas. Therefore the possibility to obtain concentrates, which would be acceptable from economic point of view reveals in magnetic separation, especially by the use of highly intensive superconducting magnets. They can deliver concentrates with about five time higher lithium content.
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