Processing of a Zimbabwean petalite to obtain lithium carbonate

Show simple item record Sitando, Onias Crouse, Philippus L. 2012-02-16T14:34:30Z 2012-02-16T14:34:30Z 2012-01
dc.description.abstract Processing of petalite concentrate from the Bikita deposits in Zimbabwe for production of high purity Li2CO3 has been studied. XRF and ICP‐OES analysis showed that the concentrate consists of oxides of Li, Si and Al as major components, with an average Li2O content of 4.10 %. XRD examination confirmed that the sample is a petalite. Processing of the petalite involves roasting the pre‐heated concentrate with concentrated H2SO4 followed by water leaching of the resulting Li2SO4, solution purification and precipitation of Li2CO3. The effects of roasting temperature, stirring speed, solid to liquid ratio, leaching temperature and time on the lithium dissolution are reported. The dissolution rates are significantly influenced by roasting temperature and stirring speed. Water‐washed lithium carbonate with a purity of 99.21 % (metal basis) was produced. Synthesised and commercial Li2CO3 samples were characterised and compared using X‐ray diffraction (XRD) and thermogravimetric analysis (TGA). en_US
dc.description.sponsorship University of Pretoria, the South African National Research Foundation (NRF) and the Fluorochemical Expansion Initiative (FEI) en_US
dc.description.uri en_US
dc.identifier.citation Sitando, O & Crouse, PL 2012, 'Processing of a Zimbabwean petalite to obtain lithium carbonate', International Journal of Mineral Processing, vol. 102-103, pp. 45-50. en_US
dc.identifier.issn 0301-7516 (print)
dc.identifier.issn 1879-3525 (online)
dc.identifier.other 10.1016/j.minpro.2011.09.014
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.rights © 2011 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in International Journal of Mineral Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Mineral Processing, vol.102-103, 2011, doi : 10.1016/j.minpro.2011.09.014 en_US
dc.subject Petalite en_US
dc.subject Lithium en_US
dc.subject Lithium extraction en_US
dc.subject Lithium carbonate en_US
dc.subject Bikita Minerals en_US
dc.title Processing of a Zimbabwean petalite to obtain lithium carbonate en_US
dc.type Postprint Article en_US

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