Extraction of americium, curium, and californium with LN resin from HCl and HNO3

被引：1
作者：
Kmak, Kelly N. [1 ]
Despotopulos, John D. [1 ]
Ahrens, Nicole [1 ,2 ]
Hoffman, Derek R. [1 ]
Kerlin, William M. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA
[2] Colorado State Univ, Environm & Radiol Hlth Sci, Ft Collins, CO USA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年 / 334卷 / 01期
关键词：
Extraction chromatography; Americium; Curium; Californium; SOLVENT-EXTRACTION; CHROMATOGRAPHY; SEPARATION; URANIUM; BERKELIUM; ACTINIDE; ELEMENTS; COLUMNS; ACID;
D O I：
10.1007/s10967-024-09799-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The uptake of Am-241, Cm-244 and Cf-249 with LN resin was studied in HCl and HNO3 solutions with concentrations ranging from 0.02 to 2.5 M. There is high uptake at concentrations < 0.1 M in both acids for all three isotopes with decreasing uptake at higher concentrations and negligible extraction at >= 0.6 M. Californium has a higher extraction than americium and curium, which are extremely similar. Kinetics studies showed rapid uptake of all three isotopes. Column studies were performed to demonstrate the separation of Am-241 and Cf-249, and a bulk separation including nine stable lanthanides along with Am-241, Cf-249, and Y-88.
引用
收藏
页码：575 / 582
页数：8
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