Complex for Super-DIREX ProcessKamiya, Masayoshi 
; Miura, Sachiko ; Nomura, Kazunori 
; Koyama, Tomozo; Ogumo, Shinya*; Mori, Yukihide*; Enokida, Yoichi*
Super-DIREX is a new reprocessing method which has high economical efficiency. Experimental study of this process was started on the direct extraction of U and Pu from irradiated MOX fuel by the supercritical carbon dioxide (SFCO
) containing TBP-HNO complex. This report describes direct extraction of U and Pu with TBP-HNO3 complex at atmospheric pressure, as the first test for irradiated fuel, in order to investigate the applicability of SFCO containing TBP-HNO complex. In this test, dependency on dissolution temperature, Pu content, fuel/ TBP-HNO complex ratio and effect of voloxidation were investigated. From these results, TBP-HNO complex was found to be effective in the respect of the recovery of U and Pu. The number of the process step in dissolution and co-extraction is small, and amount of waste can be reduced. It is applicable to the direct extraction in Super-DIREX.
Language |
: | English |
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Pages |
: | 4 Pages |
Publication Year/Month |
: | 2004/00 |
Meeting title |
: | International Conference ATALANTE 2004 Advances for Future Nuclear Fuel Cycles |
Held date |
: | 2004/06 |
Location (city) |
: | Nimes |
Location (country) |
: | France |
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Keywords |
: | no keyword |
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