Abstract
Solvent extraction of Eu(III) and Nd(III) from aqueous medium was investigated by sulfasalazine in benzoyl alcohol as single extractant and then with synergic mixture of sulfasalazine and 1,10-phenanthroline in benzyl alcohol. The synergic mixture was found to extract studied rare earth elements with higher distribution coefficients. All cations studied have shown negligible effect on the extraction, whereas citrate and oxalate interfered seriously. The stoichiometric composition of extracted species was found to be M (SS)2.HSS.X and [M(SS)3.2phen] where M = Eu(III) and Nd(III). The extraction mechanism is also discussed. The extractant has high loading as well as recycling capacity without any degradation.
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Acknowledgements
We are grateful to the reactor operation group (ROG) of PINSTECH Islamabad, Pakistan for irradiating the target samples in the research reactor for the production of radionuclides used in this study. We are also grateful to Higher Education Commission, Pakistan (Grant No. 100478) for providing financial support to complete this study.
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Shahida, S., Abbasi, Y.A., Ali, A. et al. Synergistic extraction of Eu(III) and Nd(III) from aqueous medium using a mixture of sulfasalazine and 1,10-phenanthroline. J Radioanal Nucl Chem 324, 1215–1223 (2020). https://doi.org/10.1007/s10967-020-07171-z
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DOI: https://doi.org/10.1007/s10967-020-07171-z