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Dissolution of uranium dioxide in supercritical fluid carbon dioxide
M D Samsonov1, C M Wai, S C Lee
1Department of Chmistry, University of Idaho, Moscow, Idaho 83844, USA.
Chemical Communications (Cambridge, England)
|September 21, 2002
Abstract:
Uranium dioxide can be dissolved in supercritical CO2 with a CO2-philic TBP-HNO3 complexant to form a highly soluble UO2(NO3)(2).2TBP complex; this new method of dissolving UO2 that requires no water or organic solvent may have important applications for reprocessing of spent nuclear fuels and for treatment of nuclear wastes.