Abstract
The solvent extraction of trivalent actinides and lanthanides from aqueous IM NaNO3 by the sulfur containing acidic extractant Cyanex 301 was studied. This commercial extractant shows very interesting features for An(III)/Ln(III) separations depending on the purification of its main constituent bis(2,2,4-trimethylpentyl)dithiophosphinic acid. Efficient separations were observed with nonpurified Cyanex 301 for high Ln(III) concentrations, but not for low Ln(III) concentrations. Successful purification of Cyanex 301 was performed by precipitation of the ammonium dithiophosphinate. Very high An(III)/Ln(III) separation factors (higher than 103) were obtained for micro or macro concentrations of Ln(III) at pH 3–4.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Y. Zhu, C. Song, R. Jiao, GLOBAL 95 Intern. Conf. on Evaluation of Emerging Nuclear Fuel Cycle System, Versailles, France, September 11–14, 1995, p. 571.
Jarvinen et al., Separation of f Elements,K. L. Nash andG. R. Choppin (Eds), Plenum Press, New York, 1995, p. 43.
Y. Zhu, personal communication.
C. Musikas, Proc. Intern. Symp. Actinide/Lanthanide Separations. Honolulu, Hawaii, USA, Dec. 16–22, 1994. Singapore, World Scientific, 1985, p. 19.
Y. Zhu, Radiochim. Acta, 68 (1995) 95.
K. C. Sole, J. B. Hiskey, T. L. Ferguson, Solvent Extr. Ion Exch., 11 (1993), No. 5, 783.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Modolo, G., Odoj, R. Influence of the purity and irradiation stability of Cyanex 301 on the separation of trivalent actinides from lanthanides by solvent extraction. J Radioanal Nucl Chem 228, 83–89 (1998). https://doi.org/10.1007/BF02387304
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02387304