Abstract
The feasibility of the application of electrodialysis in separation of light and heavy rare earth elements (REE) in synthetic solutions was investigated. The experiments were carried out using single and binary solutions of a light (cerium) and heavy (ytterbium) REE. The effects of electrical voltage, electrical current, and the addition of complexing agent (EDTA ) to increase the separation selectivity were investigated. Separation of Ce and Yb was achieved in binary solutions with and without the addition of EDTA . Higher degrees of separation were seen at higher voltages. Ce–Yb separation was more significant in the presence of EDTA . The separation factor of Ce–Yb and Ce–Yb-EDTA were 1.44 and 2.60, respectively.
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Acknowledgements
The authors wish to thank Dr. Duane Mazur from ElectroCell North America for his useful technical advice. CanmetMINING Analytical Services Group are also acknowledged for their support.
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© 2018 The Minerals, Metals & Materials Society
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Mosadeghsedghi, S., Mortazavi, S., Sauber, M.E. (2018). The Feasibility of Separation of Rare Earth Elements by Use of Electrodialysis. In: Davis, B., et al. Extraction 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95022-8_152
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DOI: https://doi.org/10.1007/978-3-319-95022-8_152
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