Obtaining Li2CO3 from zinnwaldite waste

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021752" target="_blank" >RIV/60461373:22310/09:00021752 - 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

Obtaining Li2CO3 from zinnwaldite waste

Original language description

A zinnwaldite concentrate with 1.40% Li processed in this study was prepared from zinnwaldite wastes (0.21% Li) using dry magnetic and grain size separations. Zinnwaldite wastes originated from dressing Sn-W ores, which were mined in the past in the Czech Republic in Cinovec area. The extraction process of lithium, so called gypsum method consisted of sintering the concentrate with CaSO4 and Ca(OH)2, subsequent leaching of the sinters obtained in H2O, solution purification and precipitation of Li2CO3. It was observed that almost 96% lithium extraction was achieved if sinters prepared at 950°C were leached at 90°C, solid-to-liquid ratio = 10:1, reaction time 10 min. The weight ratio of the concentrate to CaSO4 to Ca(OH)2 was 6 : 4.2 : 2. Lithium carbonate product containing almost 99% Li2CO3 was separated from the condensed leach liquor, from which calcium was removed by carbonate precipitation.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DM - Solid waste and its control, recycling

OECD FORD branch

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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)

Publication year

2009

Confidentiality

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

Name of the periodical

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

53

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

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UT code for WoS article

000270457900007

EID of the result in the Scopus database

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