Recovery of Lithium and Rubidium from Low Grade Czech Zinnwaldite

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recovery of Lithium and Rubidium from Low Grade Czech Zinnwaldite

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Recovery of Lithium and Rubidium from Low Grade Czech Zinnwaldite

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

DM - Tuhý odpad a jeho kontrola, recyklace

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F07%2F0499" target="_blank" >GA104/07/0499: Výzkum procesů pro separaci sloučenin Li, Rb a Cs</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

European Metallurgical conference

ISBN

978-3-940276-17-9

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

GDMB Clausthal

Místo vydání

Zellerfeld

Místo konání akce

Innsbruck, Austria

Datum konání akce

28. 6. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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