Am, Cm recovery from genuine HLLW by extraction chromatography

The extraction chromatography experiments for Am(III) and Cm(III) recovery from genuine HLLW were carried out in order to demonstrate modified 2 flow-sheets using CMPO/SiO 2 -P and HDEHP/SiO 2 -P adsorbents for obtaining DTPA-free MA(III) product solution. The first flow-sheet achieved about 90% MA(...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2018-06, Vol.316 (3), p.1113-1117
Main Authors: Watanabe, Sou, Sano, Yuichi, Kofuji, Hirohide, Takeuchi, Masayuki, Shibata, Atsuhiro, Nomura, Kazunori
Format: Article
Language:English
Subjects:
Backup software
Chemistry
Chemistry and Materials Science
Chromatography
Decontamination
Diagnostic Radiology
Flow velocity
Hadrons
Heavy Ions
Inorganic Chemistry
Lanthanides
Nuclear Chemistry
Nuclear energy
Nuclear fuel cycle
Nuclear Physics
Physical Chemistry
Recovery
Silicon dioxide
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Summary:The extraction chromatography experiments for Am(III) and Cm(III) recovery from genuine HLLW were carried out in order to demonstrate modified 2 flow-sheets using CMPO/SiO 2 -P and HDEHP/SiO 2 -P adsorbents for obtaining DTPA-free MA(III) product solution. The first flow-sheet achieved about 90% MA(III) recovery with more than 10 3 of decontamination factor for 155 Eu. However, further modification is necessary for separation of light lanthanides. Purification of MA(III) from both of heavy and light lanthanides was successfully done by the 2nd flow-sheet although recovery yields of MA(III) was almost the same with the current flow-sheet i.e. 70%. The recovery yield is expected to be improved by some optimizations in operation conditions such as column length, flow rate of the mobile phase and etc.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-018-5853-x