Removal of calcium and magnesium from lithium brine concentrate via continuous counter-current solvent extraction
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- 作者：Sami Virolainena ; Sami.Virolainen@lut.fi" class="auth_mail" title="E-mail the corresponding author ; Mojtaba Fallah Finia ; Ville Miettinenb ; Antero Laitinenc ; Mika Haapalainend ; Tuomo Sainioa
- 关键词：Lithium ; Brine ; Calcium ; Magnesium ; Continuous counter-current solvent extraction
- 刊名：Hydrometallurgy
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：162
- 期：Complete
- 页码：9-15
- 全文大小：637 K
文摘
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New option for removal of Ca and Mg from Li-rich brine by solvent extraction
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Feasibility and dynamics were studied in continuous counter-current equipment.
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D2EHPA and Versatic 10 removed Ca to below 20 mg/L and Mg to below 7 mg/L.
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Typically Li co-extraction was under 5% and purity increased from 96 to 99.9%.
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Removal of Mg in presence of Ca requires high extractant concentration or O/A ratio.