Reduction of Uranyl(VI) Species in Alkali Chloride Melts

Chemical reduction of uranyl(VI) ions was studied in melts based on NaCl‐2CsCl, NaCl‐KCl, 3LiCl‐2KCl and LiCl between 550 and 750 °C by high‐temperature electronic absorption spectroscopy and electrochemistry. Elemental hydrogen, zirconium, niobium, molybdenum, silver, palladium, tellurium and Nb(II...

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Bibliographic Details
Published inMolten Salts Chemistry and Technology pp. 507 - 520
Main Authors Volkovich, V. A, Aleksandrov, D. E, Maltsev, D. S, Vasin, B. D, Polovov, I. B, Griffiths, T. R
Format Book Chapter
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 23.05.2014
Subjects
alkali chloride melts
electronic absorption spectroscopy
hydrogen
molybdenum
niobium
nuclear fuel reprocessing
palladium
reduction
silver
tellurium
uranium
uranyl
zirconium
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Summary:Chemical reduction of uranyl(VI) ions was studied in melts based on NaCl‐2CsCl, NaCl‐KCl, 3LiCl‐2KCl and LiCl between 550 and 750 °C by high‐temperature electronic absorption spectroscopy and electrochemistry. Elemental hydrogen, zirconium, niobium, molybdenum, silver, palladium, tellurium and Nb(III) chloro‐species were used as the reducing agents. The products formed depend on temperature, melt composition and the nature of the reductant.
ISBN:9781118448731
1118448731
DOI:10.1002/9781118448847.ch6m