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1. 发明申请

US20110263837A1 METHOD FOR PREPARING AN ACTINIDE(S) OXALATE AND FOR PREPARING AN ACTINIDE(S) COMPOUND 有权
标题翻译：制备丙交酯（O）和用于制备丙交酯（S）化合物的方法
公开(公告)号：US20110263837A1
公开(公告)日：2011-10-27
申请号：US13139704
申请日：2009-12-17
申请人： Murielle Bertrand , Stephane Grandjean , Bruno Courtaud , Frederic Auger
发明人： Murielle Bertrand , Stephane Grandjean , Bruno Courtaud , Frederic Auger
IPC分类号： C07F5/00
CPC分类号： C01G56/00 , C01G43/025 , C01P2004/03 , C01P2004/51 , G21C3/62 , G21C3/623 , G21C19/46 , Y02E30/38 , Y02W30/883
摘要： A method for preparing an oxalate of one or more actinides for processing and recycling nuclear fuel, comprising: the precipitation of said actinide or the coprecipitation of said actinides in the form of oxalate particles by bringing into contact an aqueous solution containing the actinide(s) with an aqueous solution of oxalic acid or of an oxalic acid salt; and the collection of the resulting oxalate particles; characterized in that the precipitation or coprecipitation is carried out in fluidized bed.
摘要翻译：一种用于制备用于处理和再循环核燃料的一种或多种锕系元素草酸盐的方法，包括：通过与含有锕系元素的水溶液接触，使所述锕系元素沉淀或所述锕系元素以草酸盐颗粒的形式共沉淀，与草酸或草酸盐的水溶液; 并收集所得到的草酸盐颗粒; 其特征在于沉淀或共沉淀在流化床中进行。

2. 发明授权

US08940817B2 Method for preparing an actinide(s) oxalate and for preparing an actinide(s) compound 有权
标题翻译：制备草酸锕系和制备锕系化合物的方法
公开(公告)号：US08940817B2
公开(公告)日：2015-01-27
申请号：US13139704
申请日：2009-12-17
申请人： Murielle Bertrand , Stephane Grandjean , Bruno Courtaud , Frederic Auger
发明人： Murielle Bertrand , Stephane Grandjean , Bruno Courtaud , Frederic Auger
IPC分类号： C07F5/00 , C01G56/00 , C01G43/025 , G21C3/62 , G21C19/46
CPC分类号： C01G56/00 , C01G43/025 , C01P2004/03 , C01P2004/51 , G21C3/62 , G21C3/623 , G21C19/46 , Y02E30/38 , Y02W30/883
摘要： A method for preparing an oxalate of one or more actinides for processing and recycling nuclear fuel, comprising: the precipitation of said actinide or the coprecipitation of said actinides in the form of oxalate particles by bringing into contact an aqueous solution containing the actinide(s) with an aqueous solution of oxalic acid or of an oxalic acid salt; and the collection of the resulting oxalate particles; characterized in that the precipitation or coprecipitation is carried out in fluidized bed.
摘要翻译：一种用于制备用于处理和再循环核燃料的一种或多种锕系元素草酸盐的方法，包括：通过与含有锕系元素的水溶液接触，使所述锕系元素沉淀或所述锕系元素以草酸盐颗粒的形式共沉淀，与草酸或草酸盐的水溶液; 并收集所得到的草酸盐颗粒; 其特征在于沉淀或共沉淀在流化床中进行。

3. 发明申请

US20050288542A1 Method for coprecipitation of actinides in different oxidation states and method for preparation of mixed compounds of actinides 有权
标题翻译：不同氧化态锕系共沉淀法及锕系混合物的制备方法
公开(公告)号：US20050288542A1
公开(公告)日：2005-12-29
申请号：US11140282
申请日：2005-05-27
申请人： Stephane Grandjean , Andre Beres , Christophe Maillard , Jerome Rousselle
发明人： Stephane Grandjean , Andre Beres , Christophe Maillard , Jerome Rousselle
IPC分类号： C01G3/00 , C01G21/00 , C01G43/025 , C01G56/00 , C01G99/00 , G21C3/62 , C01G57/00
CPC分类号： G21C3/62 , C01G56/00 , C01G56/004 , G21C3/623 , Y02E30/38
摘要： Method for coprecipitation (or simultaneous precipitation) of at least one actinide in oxidation state (IV) with at least one actinide in oxidation state (III), wherein: a solution i.e. mixture of actinide(s) in oxidation state (IV) and actinide(s) in oxidation state (III) is prepared by adding to it a singly charged cation whose presence makes it possible to stabilize the aforementioned oxidation states in the mixture, or a singly charged cation which does not act to stabilize the aforementioned oxidation states in the mixture; a solution containing oxalate ions is mixed with the said mixture of actinides in order to carry out coprecipitation, i.e. simultaneous precipitation, of the said actinides in oxidation states (IV) and (III) and a fraction of the singly charged cation. According to another embodiment, a solution i.e. mixture of actinide(s) in oxidation state (IV) and actinide(s) in oxidation state (III) is prepared and a solution containing oxalate ions and a singly charged cation is added to the said mixture of actinides in order to carry out the coprecipitation. Method for preparation of mixed compounds of actinides by calcining the precipitate which is obtained. These mixed oxides such as mixed oxides, carbides or nitrides can be used especially in the fabrication of nuclear fuel, in the fabrication of transmutation targets or for the stable packaging of nuclear materials.
摘要翻译：在氧化态（Ⅳ）中至少一种锕系元素在氧化态（Ⅳ）中共沉淀（或同时沉淀）至少一种锕系元素的方法，其中：溶液即锕系元素的氧化态（Ⅳ）和锕系元素的混合物通过向其中加入单体电荷的阳离子来制备氧化态（III），其中存在使得可以稳定混合物中的上述氧化态，或单独电荷的阳离子，其不起稳定上述氧化态的作用混合物; 将含有草酸根离子的溶液与所述锕系混合物混合，以进行所述锕系元素在氧化态（Ⅳ）和（Ⅳ）中的共沉淀，即同时沉淀，以及一部分单电荷阳离子。根据另一个实施方案，制备溶液，即处于氧化态（Ⅳ）的锕系元素和氧化态锕系元素的混合物，并将含有草酸根离子和单电荷阳离子的溶液加入到所述混合物中的锕系元素进行共沉淀。通过煅烧得到的沉淀物制备锕系混合物的方法。这些混合氧化物如混合氧化物，碳化物或氮化物可以特别用于制造核燃料，制造转化靶或用于核材料的稳定包装。

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