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

被引：1
|
作者：
Kmak, Kelly N. [1 ]
Despotopulos, John D. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 08期
关键词：
Extraction chromatography; Fission products; Rare earth elements; Americium; Actinium; SOLVENT-EXTRACTION; CROWN-ETHERS; LANTHANIDES; 18-CROWN-6; 15-CROWN-5; MEDIA;
D O I：
10.1007/s10967-023-09027-8
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The uptake behavior of Y-88, Ba-140, La-140, Ce-141, Eu-152, Ac-228, and Am-241 was studied with batch uptake, kinetics and column studies in a synergistic extraction system with Pb resin and 2-thenoyltrifluoroacetone in acetate-ethanol solutions. The k' values are very high (> 10,000) at near neutral pH (similar to 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-thenoyltrifluoroacetone. Column studies were performed to demonstrate the separation of the trivalent actinides and lanthanides from barium and common fission products (Mo-99, Ru-103).
引用
收藏
页码：3349 / 3359
页数：11
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