Synergistic extraction of rare earth elements, actinium, americium, and barium with TTA and Pb resin from acetate buffer solutions

Kmak, Kelly N.; Despotopulos, John D.

doi:10.1007/s10967-023-09027-8

Synergistic extraction of rare earth elements, actinium, americium, and barium with TTA and Pb resin from acetate buffer solutions

Journal Article · Wed Jul 05 00:00:00 UTC 2023 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-023-09027-8· OSTI ID:1996098

^[1]; Despotopulos, John D. ^[1]

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

The uptake behavior of ⁸⁸Y, ¹⁴⁰Ba, ¹⁴⁰La, ¹⁴¹Ce, ¹⁵²Eu, ²²⁸Ac, and ²⁴¹Am was studied with batch uptake, kinetics and column studies in a synergistic extraction system with Pb resin and 2-thenoyltrifuoroacetone in acetate-ethanol solutions. The k' values are very high (>10,000) at near neutral pH (~5 to 6) for all of the radioisotopes studied. The kinetics are reasonably fast for column separations, though the uptake rate is dependent on the concentration of 2-thenoyltrifuoroacetone. Column studies were performed to demonstrate the separation of the trivalent actinides and lanthanides from barium and common fssion products (⁹⁹Mo, ¹⁰³Ru).

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1996098

Report Number(s):: LLNL-JRNL--848737; 1073549

Journal Information:: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 8 Vol. 332; ISSN 0236-5731

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
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Synergistic extraction of rare earth elements, actinium, americium, and barium with TTA and Pb resin from acetate buffer solutions

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References (24)

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