Recovery of Lithium and Rubidium from Low Grade Czech Zinnwaldite

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021755" target="_blank" >RIV/60461373:22310/09:00021755 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Recovery of Lithium and Rubidium from Low Grade Czech Zinnwaldite
Original language description
Lithium and rubidium were separated from leach liquors originated from processing zinnwaldite concentrate with 1.36% Li and 0.94% Rb using lime stone method. This concentrate was prepared from zinnwaldite wastes (0.21% Li, 0.20% Rb) originating from dressing Sn-W ores, which were heavily mined in the past in the Czech Republic. Two methods of lithium extraction from hydroxide leach liquors were investigated: precipitation of Li2CO3 with gaseous CO2 and liquid-liquid extraction with LIX54 and TOPO. Carbonate precipitation provides ca. 75% yield of Li in the form of Li2CO3 with an average purity of 94%. Liquid-liquid extraction enables 96% yield of Li in the form of Li2SO4 solution, a suitable intermediate for precipitation of Li2CO3 with 99% purity. Rubidium can be precipitated from refined solutions after Li separation as RbAl(SO4)2.12H2O, a suitable intermediate for Rb2CO3 production.
Czech name
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Czech description
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Project
<a href="/en/project/GA104%2F07%2F0499" target="_blank" >GA104/07/0499: Research of processes for separation of lithium, rubidium and cesium compounds</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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