Abstract
Yttrium is a strategical material for its several usages in a wide range of industrial production. For this reason, improving the recovery of Yttrium has become a crucial focus for international research. In this scientific activity, the utilization of two extractants, 2-ethylhexyl-mono 2-ethylhexyl ester phosphonic acid (P-507) and sec-octylphenoxy acetic acid (CA-12), working in a synergistic extracting system, has been tested. A series of trials have been carried out to optimize the experimental conditions in order to separate yttrium from a mix of heavy rare earths in chloride media. Tests with different relative concentrations of extractants and a phase modifier (TPB, trybutyl phosphate), with different presaponification rate, have been performed to evaluate the behavior of the synergistic system. Results are very promising to recover and separate yttrium with a high purity.
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Acknowledgements
The authors wish to thank R&D division of Treibacher Industrie, in particular Dr. Stephan Pirker, Dr Christiane Kartusch and Gunther Bierbaumer for support and help during this work.
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© 2017 The Minerals, Metals & Materials Society
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Blasi, A., Sposato, C., Romanelli, A., Braccio, G., Morgana, M. (2017). Study of a Synergistic Solvent Extracting System to Separate Yttrium and Heavy Rare Earths: A Deep Investigation on System Behavior. In: Kim, H., Alam, S., Neelameggham, N., Oosterhof, H., Ouchi, T., Guan, X. (eds) Rare Metal Technology 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51085-9_29
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DOI: https://doi.org/10.1007/978-3-319-51085-9_29
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