Abstract
Extraction of uranyl, La(III), and Y(III) nitrates from aqueous solutions containing 0–4 M sodium nitrate with a composite solid extractant based on a polymeric support impregnated with trialkylamine (C7-C9) was studied. The extraction isotherms were analyzed assuming that La(III), Y(III), and uranyl nitrates are extracted with the solid extractant in the form of complexes (R3NH)3[Ln(NO3)6] and (R3NH)2[UO2(NO3)4], respectively. The extraction constants were calculated. The joint extraction of uranyl and La(III) [Y(III)] nitrates with the solid extractant from aqueous salt solutions was studied. The composite solid extractant based on a polymeric support impregnated with trialkylamine can be used for purification of aqueous solutions of rare-earth metal nitrates to remove uranium impurities.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Pyartman, A.K., Keskinov, V.A., Mikhailenko, M.A., et al., Radiokhimiya, 2004, vol. 46, no. 3, pp. 240–242.
Pyartman, A.K., Kopyrin, A.A., Berinskii, A.E., and Keskinov, V.A., Radiokhimiya, 2000, vol. 42, no. 2, pp. 128–130.
Přibil, R., Analytical Applications of EDTA and Related Compounds, Oxford: Pergamon, 1972.
Pyartman, A.K., Keskinov, V.A., Lishchuk, V.V., et al., Radiokhimiya, 2007, vol. 49, no. 3, pp. 237–240.
Author information
Authors and Affiliations
Additional information
Original Russian Text © A.K. Pyartman, V.V. Lishchuk, V.A. Keskinov, 2007, published in Radiokhimiya, 2007, Vol. 49, No. 3, pp. 241–243.
Rights and permissions
About this article
Cite this article
Pyartman, A.K., Lishchuk, V.V. & Keskinov, V.A. Extraction of uranyl, La(III), and Y(III) nitrates with a composite solid extractant based on a polymeric support impregnated with trialkylamine. Radiochemistry 49, 273–276 (2007). https://doi.org/10.1134/S1066362207030113
Received:
Issue Date:
DOI: https://doi.org/10.1134/S1066362207030113