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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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New coolants, new fuels: A new generation of university reactors
Here’s an easy way to make aging U.S. power reactors look relatively youthful: Compare them (average age: 43) with the nation’s university research reactors. The 25 operating today have been licensed for an average of about 58 years.
Hirotake Moriyama, Kunimitsu Yajima, Yasunobu Tominaga, Kimikazu Moritani, Jun Oishi
Nuclear Technology | Volume 62 | Number 2 | August 1983 | Pages 133-138
Technical Paper | Chemical Processing | doi.org/10.13182/NT83-A33211
Articles are hosted by Taylor and Francis Online.
The distribution coefficients of thorium and radium between molten LiF-BeF2 and liquid bismuth solutions were measured at 600°C in support of the processing of the molten-salt breeder reactor (MSBR) fuel The increasing mole fraction of LiF in the salt phase from 40 to 70 mol% resulted in the rapid decrease of the distribution coefficient of thorium and in the slow decrease of that of radium. A comprehensive correlation of distribution behavior with salt composition is given by taking into account the formation of complex ions. The equilibrium distribution data affirm that thorium and radium exist mainly as Li2ThF6 and RaF2, respectively, in the salt phase. It is suggested that the lower mole fraction of LiF in the fuel salt is effective in the MSBR fuel processing.
