Study on a separation method of radionuclides (Ba, Sr) from LiCl salt wastes generated from the electroreduction process of spent nuclear fuel

In this paper, a separation method of radionuclides (Ba, Sr) from LiCl salt wastes generated from the electroreduction process of spent nuclear fuel was studied to recover pure LiCl salts and reduce radioactive wastes. The method consisted of chemical conversion process of BaCl 2 and SrCl 2 in LiCl...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2012-05, Vol.292 (2), p.531-535
Main Authors: Eun, H. C., Cho, Y. Z., Park, H. S., Kim, I. T., Lee, H. S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Halides
Heavy Ions
Inorganic Chemistry
Lithium compounds
Methods
Nuclear Chemistry
Nuclear energy
Nuclear industry
Nuclear Physics
Physical Chemistry
Spent reactor fuels
Waste management
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Summary:In this paper, a separation method of radionuclides (Ba, Sr) from LiCl salt wastes generated from the electroreduction process of spent nuclear fuel was studied to recover pure LiCl salts and reduce radioactive wastes. The method consisted of chemical conversion process of BaCl 2 and SrCl 2 in LiCl molten salts by using lithium compounds and vacuum distillation process of LiCl salts. In the chemical conversion, BaCl 2 and SrCl 2 in LiCl molten salts were mainly converted into (Ba,Sr)CO 3 or (Ba,Sr)SO 4 . Contents of Ba and Sr in LiCl salts recovered from the vacuum distillation process were equal to about 0.01 of initial concentrations of Ba and Sr in LiCl molten salts. These results will be utilized to recycle the LiCl salt wastes.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-011-1438-7