A study of separation and solidification of group II nuclides in waste salt delivered from the pyrochemical process of used nuclear fuel

If group II nuclides, which contain high heat-generative elements, in waste salt are fabricated into a waste form rich in group II nuclides, the waste form can be used in radionuclide thermoelectric generator applications. For this reason, the separation of group II nuclides in salt (LiCl, LiCl-KCl)...

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Published inJournal of nuclear materials Vol. 491; pp. 149 - 153
Main Authors Eun, H.C., Choi, J.H., Kim, N.Y., Lee, T.K., Han, S.Y., Jang, S.A., Kim, T.J., Park, H.S., Ahn, D.H.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.08.2017
Elsevier BV
Subjects
Chloride
Chlorides
Fabrication
Generators
Group II nuclide
Lithium chloride
Nuclear fuels
Nuclides
Potassium chloride
Pyrochemical process
Radioisotopes
Radionuclide thermoelectric generator
Salt
Salts
Separation
Solidification
Spent nuclear fuels
Studies
Thermoelectricity
Used nuclear fuel
Fabrication
Group II nuclide
Used nuclear fuel
Separation
Pyrochemical process
Radionuclide thermoelectric generator
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Summary:If group II nuclides, which contain high heat-generative elements, in waste salt are fabricated into a waste form rich in group II nuclides, the waste form can be used in radionuclide thermoelectric generator applications. For this reason, the separation of group II nuclides in salt (LiCl, LiCl-KCl) was conducted, after which a waste form rich in them was fabricated. In this study, group II nuclide chlorides in salt were effectively separated into a carbonate or oxychloride form, and the separated nuclides were successfully fabricated into a homogenous and stable glass waste form with high contents (45–50 wt%) of these nuclides.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2017.04.060