Invention Grant
- Patent Title: Carbamides for separating uranium(VI) and plutonium(IV) without reducing the plutonium(IV)
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Application No.: US16625557Application Date: 2018-06-28
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Publication No.: US11479833B2Publication Date: 2022-10-25
- Inventor: Cécile Marie , Clémence Berger , Guillaume Mossand , Emilie Russello , Eugen Andreiadis , Dominique Guillaumont , Manuel Miguirditchian , Christian Sorel
- Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES , Orano Cycle , ELECTRICITE DE FRANCE
- Applicant Address: FR Paris; FR Courbevoie; FR Paris
- Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES,Orano Cycle,ELECTRICITE DE FRANCE
- Current Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES,Orano Cycle,ELECTRICITE DE FRANCE
- Current Assignee Address: FR Paris; FR Courbevoie; FR Paris
- Agency: Pearne & Gordon LLP
- Priority: FR1756057 20170629
- International Application: PCT/FR2018/051606 WO 20180628
- International Announcement: WO2019/002788 WO 20190103
- Main IPC: C22B60/00
- IPC: C22B60/00 ; C22B60/02 ; C22B3/26 ; C22B60/04 ; G21C19/46
Abstract:
The use of carbamides as extractants for fully or partially separating uranium(VI) from plutonium(IV) in an aqueous solution obtained by dissolving a spent nuclear fuel in nitric acid, by method of liquid-liquid extraction, without carrying out any reduction of the plutonium(IV) to plutonium(III). The invention also relates to new carbamides. Uses are the processing of spent nuclear fuels based on uranium (especially uranium oxides—UOX) or uranium and plutonium (especially mixed uranium and plutonium oxides—MOX).
Public/Granted literature
- US20210363609A1 CARBAMIDES FOR SEPARATING URANIUM(VI) AND PLUTONIUM(IV) WITHOUT REDUCING THE PLUTONIUM(IV) Public/Granted day:2021-11-25
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