Separation of curium from americium using composite sorbents and complexing agent solutions: part 2 View Full Text


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Article Info

DATE

2017-04-26

AUTHORS

Kamila Šťastná, Petr Distler, Jan John, Ferdinand Šebesta

ABSTRACT

TODGA–PAN composite sorbent and (PhSO3H)2–BTPhen in nitric acid solution were employed as a system for separation of curium from americium. The influence of aqueous phase composition (complexing agent and nitric acid concentrations) on weight distribution coefficients and Cm/Am separation factor was studied in batch experiments with trace amounts of 241Am and 244Cm. Based on the results obtained, column experiment was designed and conducted. The Cm/Am separation factor of 3.8 ± 0.1 found in batch experiments with TODGA–PAN could be reproduced also in column experiment resulting in good separation of Cm from Am. The efficiency of Cm separation from Am in the TODGA–PAN system was compared with the analogous system with DGA resin (Triskem International). After separation on a 0.5 mL column (φ4.7 × 29 mm) the Cm fraction containing 93% of Cm(III) contained only 3% of Am(III) in optimum conditions. More... »

PAGES

685-689

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10967-017-5260-8

DOI

http://dx.doi.org/10.1007/s10967-017-5260-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1085071663


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