Non-aqueous solvent extraction of rare-earth nitrates from ethylene glycol to n-dodecane by Cyanex 923
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- 作者：Nagaphani Kumar Batchua ; Tom Vander Hoogerstraetea ; Dipanjan Banerjeeb ; Koen Binnemansa ; Koen.Binnemans@kuleuven.be" class="auth_mail" title="E-mail the corresponding author
- 关键词：Immiscible organic solvents ; Non-aqueous solvent extraction ; Solvometallurgy ; Rare earths ; Cyanex 923
- 刊名：Separation and Purification Technology
- 出版年：2017
- 出版时间：1 March 2017
- 年：2017
- 卷：174
- 期：Complete
- 页码：544-553
- 全文大小：837 K
文摘
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A new solvent extraction system with an organic feed solution was developed.
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Ethylene glycol and Cyanex® 923/n-dodecane form two immiscible organic phases.
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The non-aqueous solvent system offers advantages over conventional systems.
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HREEs are more efficiently extracted from ethylene glycol, while LREEs are less.
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EXAFS was used for identification of the main species in the organic phases.