期刊
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
卷 314, 期 1, 页码 371-376出版社
SPRINGER
DOI: 10.1007/s10967-017-5365-0
关键词
Extraction chromatography; Lanthanide-actinide separations; Minor actinides; CA-BTP; Bis-1,2,4-triazinyl pyridines
资金
- Office of Nuclear Energy, U.S. Department of Energy
- Tennessee Technological University
The separation of americium(III) from europium(III) was achieved utilizing a bis-2,6-(5,6,7,8-tetrahydro-5,9,9-trimethyl-5,8-methano-1,2,4-benzotriazin-3-yl) pyridine (CA-BTP) chromatographic resin. The extraction chromatographic materials were prepared using various concentrations of CA-BTP. This new, hydrolytically stable extractant was impregnated on an inert polymeric support at 40% loading. The uptake of Am(III) and Eu(III) by this material from 0.1 to 4.0 M aqueous HNO3 solutions was measured. The resulting dry weight distribution ratios, D-w, indicated a strong preference for Am(III) with little affinity for Eu(III). These results are similar to recently reported solvent extraction studies indicating a maximum uptake of Am(III) in the 0.5-1.0 M HNO3 range. The resin preparation, performance, and characterization of the Am/Eu separation are reported herein.
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