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    Grouped separation of actinides from a strongly acidic aqueous phase
    3.
    发明授权
    Grouped separation of actinides from a strongly acidic aqueous phase 有权
    从强酸性水相中分离锕系元素

    公开(公告)号：US08557120B2

    公开(公告)日：2013-10-15

    申请号：US12297651

    申请日：2007-04-19

    申请人： Xavier Heres ,  Manuel Miguirditchian ,  Pascal Baron ,  Laurence Chareyre

    发明人： Xavier Heres ,  Manuel Miguirditchian ,  Pascal Baron ,  Laurence Chareyre

    IPC分类号： B01D59/24 ,  B01D17/00

    CPC分类号： G21C19/46 ,  Y02W30/883

    摘要： The invention relates to a process for collectively separating all the actinides (III), (IV), (V) and (VI) present in a strongly acidic aqueous phase, from the fission products, and in particular from the lanthanides, which are also present in this phase, using two extractants that operate in unconnected chemical fields.Applications: reprocessing of irradiated nuclear fuels, especially to recover plutonium, neptunium, americium, curium and, possibly, uranium present in trace amounts, in a grouped manner but selectively with respect to the lanthanides, from a solution for dissolution of an irradiated nuclear fuel, downstream of a uranium extraction cycle.

    摘要翻译： 本发明涉及将强酸性水相中存在的所有锕系元素（III），（Ⅳ），（Ⅴ）和（Ⅵ）从裂变产物，特别是镧系元素分离的方法， 在这个阶段，使用两种在未连接的化学领域中操作的萃取剂。 应用：辐射核燃料的后处理，特别是以分组方式回收钚，ium，ium，ium和铀和可能的铀，可以选择性地从镧系元素中选择性地从用于溶解辐照的核燃料的溶液中回收 在铀萃取循环的下游。

    INCREASE IN THE SEPARATION FACTOR BETWEEN AMERICIUM AND CURIUM AND/OR BETWEEN LANTHANIDES IN A LIQUID-LIQUID EXTRACTION OPERATION
    4.
    发明申请
    INCREASE IN THE SEPARATION FACTOR BETWEEN AMERICIUM AND CURIUM AND/OR BETWEEN LANTHANIDES IN A LIQUID-LIQUID EXTRACTION OPERATION 有权
    在液体萃取操作中，美制和矾土之间的分离因子和/或其之间的浓度增加

    公开(公告)号：US20120160061A1

    公开(公告)日：2012-06-28

    申请号：US13386012

    申请日：2010-07-26

    申请人： Xavier Heres ,  Pascal Baron

    发明人： Xavier Heres ,  Pascal Baron

    IPC分类号： C22B60/02

    CPC分类号： C22B3/0005 ,  C22B59/00 ,  G21C19/46 ,  G21F9/125 ,  Y02P10/234 ,  Y02W30/883

    摘要： A method using diglycolamide for increasing the separation factor between americium and curium and/or between lanthanides during an extraction operation. The operation comprising putting an acid aqueous phase, in which are found the americium, curium and/or lanthanides, in contact with an organic phase non-miscible with water, containing at least one extractant in an organic diluent. The aqueous and organic phases are then separated, and the diglycolamide is added to the aqueous phase. This method can be used for processing and recycling irradiated nuclear fuels, in particular for selectively recovering americium from high activity aqueous solutions such as raffinates stemming from the processing of irradiated nuclear fuels with a PUREX or COEX™ method; processing of rare earth ores of the monazite, xenotime or bastnaesite type, in order to facilitate separation of > rare earths from > rare earths and of yttrium, or that of two rare earths with adjacent or close atomic numbers.

    摘要翻译： 在提取操作期间使用二甘醇酰胺增加ium和ium和/或镧系元素之间的分离因子的方法。 操作包括将酸性水相（其中发现amer，ium和/或镧系元素）与不含水的有机相接触，所述有机相在有机稀释剂中含有至少一种萃取剂。 然后分离水相和有机相，并将二甘醇二酰胺加入到水相中。 该方法可用于加工和再循环辐照的核燃料，特别是用PUREX或COEX TM法从高活性水溶液中选择性地回收amer，例如由辐射的核燃料的加工产生的残液; 加工稀土矿石的独居石，堇青石或巴斯特纳型，以便于从“重”稀土和钇中分离出“轻量级”稀土，或者分离具有相邻或近原子的两种稀土 数字。

    Increase in the separation factor between americium and curium and/or between lanthanides in a liquid-liquid extraction operation
    5.
    发明授权
    Increase in the separation factor between americium and curium and/or between lanthanides in a liquid-liquid extraction operation 有权
    在液 - 液萃取操作中，ium和ium和/或镧系元素之间的分离因子的增加

    公开(公告)号：US09284620B2

    公开(公告)日：2016-03-15

    申请号：US13386012

    申请日：2010-07-26

    申请人： Xavier Heres ,  Pascal Baron

    发明人： Xavier Heres ,  Pascal Baron

    IPC分类号： C22B60/00 ,  C22B3/26 ,  C22B59/00 ,  G21C19/46 ,  G21F9/12 ,  C22B60/02

    CPC分类号： C22B3/0005 ,  C22B59/00 ,  G21C19/46 ,  G21F9/125 ,  Y02P10/234 ,  Y02W30/883

    摘要： A method using diglycolamide for increasing the separation factor between americium and curium and/or between lanthanides during an extraction operation. The operation comprising putting an acid aqueous phase, in which are found the americium, curium and/or lanthanides, in contact with an organic phase non-miscible with water, containing at least one extractant in an organic diluent. The aqueous and organic phases are then separated, and the diglycolamide is added to the aqueous phase. This method can be used for processing and recycling irradiated nuclear fuels, in particular for selectively recovering americium from high activity aqueous solutions such as raffinates stemming from the processing of irradiated nuclear fuels with a PUREX or COEX™ method; processing of rare earth ores of the monazite, xenotime or bastnaesite type, in order to facilitate separation of > rare earths from > rare earths and of yttrium, or that of two rare earths with adjacent or close atomic numbers.

    摘要翻译： 在提取操作期间使用二甘醇酰胺增加ium和ium和/或镧系元素之间的分离因子的方法。 操作包括将酸性水相（其中发现amer，ium和/或镧系元素）与不含水的有机相接触，所述有机相在有机稀释剂中含有至少一种萃取剂。 然后分离水相和有机相，并将二甘醇二酰胺加入到水相中。 该方法可用于加工和再循环辐照的核燃料，特别是用PUREX或COEX TM法从高活性水溶液中选择性地回收amer，例如由辐射的核燃料的加工产生的残液; 加工稀土矿石的独居石，堇青石或巴斯特泥矿类，以便于从“重”稀土和钇中分离出“轻量级”稀土，或者分离具有相邻或近原子的两种稀土 数字。

    GROUPED SEPARATION OF ACTINIDES FROM A HIGHLY ACIDIC AQUEOUS PHASE
    7.
    发明申请
    GROUPED SEPARATION OF ACTINIDES FROM A HIGHLY ACIDIC AQUEOUS PHASE 有权
    从高酸性水相中分离出丙酰胺的分离

    公开(公告)号：US20090184051A1

    公开(公告)日：2009-07-23

    申请号：US12297651

    申请日：2007-04-19

    申请人： Xavier Heres ,  Manuel Miguirditchian ,  Pascal Baron ,  Laurence Chareyre

    发明人： Xavier Heres ,  Manuel Miguirditchian ,  Pascal Baron ,  Laurence Chareyre

    IPC分类号： G21C19/46 ,  G21C19/42

    CPC分类号： G21C19/46 ,  Y02W30/883

    摘要： The invention relates to a process for collectively separating all the actinides (III), (IV), (V) and (VI) present in a strongly acidic aqueous phase, from the fission products, and in particular from the lanthanides, which are also present in this phase, using two extractants that operate in unconnected chemical fields.Applications: reprocessing of irradiated nuclear fuels, especially to recover plutonium, neptunium, americium, curium and, possibly, uranium present in trace amounts, in a grouped manner but selectively with respect to the lanthanides, from a solution for dissolution of an irradiated nuclear fuel, downstream of a uranium extraction cycle.

    摘要翻译： 本发明涉及将强酸性水相中存在的所有锕系元素（III），（Ⅳ），（Ⅴ）和（Ⅵ）从裂变产物，特别是镧系元素分离的方法， 在这个阶段，使用两种在未连接的化学领域中操作的萃取剂。 应用：辐射核燃料的后处理，特别是以分组方式回收钚，ium，ium，ium和铀和可能的铀，可以选择性地从镧系元素中选择性地从用于溶解辐照的核燃料的溶液中回收 在铀萃取循环的下游。

    Cyclic method for separating chemical elements present in an aqueous solution
    9.
    发明授权
    Cyclic method for separating chemical elements present in an aqueous solution 有权
    用于分离存在于水溶液中的化学元素的循环方法

    公开(公告)号：US07157003B2

    公开(公告)日：2007-01-02

    申请号：US10679462

    申请日：2003-10-07

    申请人： Pascal Baron ,  Michael Lecomte ,  Xavier Heres ,  Bernard Mauborgne

    发明人： Pascal Baron ,  Michael Lecomte ,  Xavier Heres ,  Bernard Mauborgne

    IPC分类号： B01D11/00

    CPC分类号： G21F9/12 ,  C01F17/0006 ,  C22B3/0005 ,  C22B59/00 ,  C22B60/0295 ,  G21F9/125 ,  Y02P10/234

    摘要： The invention concerns a cyclic method for separating at least one chemical element E1 from at least one chemical element E2 from an aqueous solution containing said elements, which employs a mixture of two extractants operating in non-overlapping chemical fields.Each cycle of said method comprises: a) co-extracting elements E1 and E2 by means of an organic phase containing a first extractant suited to causing the migration of said elements into said organic phase; b) adding to the organic phase a second extractant suited to selectively retaining the element(s) E2 in said organic phase during step c): c) selectively stripping the element(s) E1 from the organic phase; d) selectively stripping the element(s) E2 from the organic phase; e) separating the first and second extractants present in said organic phase at the end of step d).

    摘要翻译： 本发明涉及一种循环方法，用于将至少一种化学元素E 1与至少一种化学元素E 2从含有所述元素的水溶液中分离，其使用在非重叠化学领域中操作的两种萃取剂的混合物。 所述方法的每个循环包括：a）通过含有适于使所述元素迁移到所述有机相中的第一萃取剂的有机相共萃取元素E 1和E 2; b）在步骤c）期间向所述有机相中加入适于选择性地将元素E 2保留在所述有机相中的第二萃取剂：c）选择性地从有机相中汽提元素E 1; d）从有机相中选择性地剥离元素E 2; e）在步骤d）结束时分离存在于所述有机相中的第一和第二萃取剂。