发明公开
EP2373584A1 PROCEDES DE PREPARATION D'UN OXALATE D'ACTINIDE(S) ET DE PREPARATION D'UN COMPOSE D'ACTINIDE(S)
有权
用于生产ACTINIDOXALATS以及一种用于制造ACTINIDVERBINDUNG
- 专利标题: PROCEDES DE PREPARATION D'UN OXALATE D'ACTINIDE(S) ET DE PREPARATION D'UN COMPOSE D'ACTINIDE(S)
- 专利标题(英): Methods for preparing an actinide oxalate and for preparing an actinide compound
- 专利标题(中): 用于生产ACTINIDOXALATS以及一种用于制造ACTINIDVERBINDUNG
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申请号: EP09795761.7申请日: 2009-12-17
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公开(公告)号: EP2373584A1公开(公告)日: 2011-10-12
- 发明人: BERTRAND, Murielle , GRANDJEAN, Stéphane , COURTAUD, Bruno , AUGER, Frédéric
- 申请人: Commissariat à l'Énergie Atomique et aux Énergies Alternatives , AREVA NC
- 申请人地址: Bâtiment "Le Ponant D" 25, rue Leblanc 75015 Paris FR
- 专利权人: Commissariat à l'Énergie Atomique et aux Énergies Alternatives,AREVA NC
- 当前专利权人: Commissariat à l'Énergie Atomique et aux Énergies Alternatives,AREVA NC
- 当前专利权人地址: Bâtiment "Le Ponant D" 25, rue Leblanc 75015 Paris FR
- 代理机构: Ilgart, Jean-Christophe
- 优先权: FR0858860 20081219
- 国际公布: WO2010070064 20100624
- 主分类号: C01G56/00
- IPC分类号: C01G56/00 ; C01G43/025 ; G21C3/62 ; B01J8/20
摘要:
The invention relates to a method for preparing an oxalate of one or more actinides, including: precipitating said actinide or coprecipitating the actinides in the form of oxalate particles by contacting an aqueous solution containing the actinide(s) with an aqueous solution of oxalic acid or an oxalic acid salt; collecting the resulting oxalate particles; characterised in that the precipitation or coprecipitation is carried out in fluidised bed. The invention also relates to a method for preparing an oxide, carbide, or nitride actinide oxalate using said method. The invention can be used for processing and recycling nuclear fuel.
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