公开(公告)号：US20180187290A1

公开(公告)日：2018-07-05

申请号：US15738441

申请日：2016-06-29

申请人： AREVA MINES

发明人： Hamid Mokhtari ,  Bruno Courtaud ,  Frédéric Auger

IPC分类号： C22B60/02

CPC分类号： C22B60/0278 ,  C22B60/0243 ,  C22B60/026 ,  C22B60/0282

摘要： The application relates to a method for separating iron from an initial liquid organic phase containing uranium and iron, wherein the initial liquid organic phase is contacted with an aqueous solution referred to as aqueous de-ironing solution, whereby the iron passes into the aqueous solution to form a final liquid aqueous phase, and uranium remains in the initial liquid organic phase to form a final liquid organic phase referred to as de-ironed organic phase. The method is characterised in that the aqueous de-ironing solution contains an inorganic acid and uranium, and does not contain iron. The application also relates to a method for extracting uranium from an aqueous solution of an inorganic acid containing uranium and iron.

公开(公告)号：US09951399B2

公开(公告)日：2018-04-24

申请号：US14681320

申请日：2015-04-08

申请人： Los Alamos National Security, LLC

发明人： Michael E. Fassbender ,  Valery Radchenko

IPC分类号： C22B60/02 ,  C22B7/00

CPC分类号： C22B60/0295 ,  C22B7/006 ,  C22B60/026 ,  Y02P10/234

摘要： Protactinium, actinium, radium, radiolanthanides and other radionuclide fission products were separated and recovered from a proton-irradiated thorium target. The target was dissolved in concentrated HCl, which formed anionic complexes of protactinium but not with thorium, actinium, radium, or radiolanthanides. Protactinium was separated from soluble thorium by loading a concentrated HCl solution of the target onto a column of strongly basic anion exchanger resin and eluting with concentrated HCl. Actinium, radium and radiolanthanides elute with thorium. The protactinium that is retained on the column, along with other radionuclides, is eluted may subsequently treated to remove radionuclide impurities to afford a fraction of substantially pure protactinium. The eluate with the soluble thorium, actinium, radium and radiolanthanides may be subjected to treatment with citric acid to form anionic thorium, loaded onto a cationic exchanger resin, and eluted. Actinium, radium and radiolanthanides that are retained can be subjected to extraction chromatography to separate the actinium from the radium and from the radio lanthanides.

公开(公告)号：US20180094009A1

公开(公告)日：2018-04-05

申请号：US15564053

申请日：2016-04-01

申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE MONTPELLIER

发明人： Stéphane Pellet-Rostaing ,  Antoine Leydier ,  Guilhem Arrachart ,  Raphaël Turgis ,  Véronique Dubois

IPC分类号： C07F9/53 ,  C22B3/26 ,  C22B60/02

CPC分类号： C07F9/5304 ,  C22B3/0005 ,  C22B60/0243 ,  C22B60/026 ,  Y02P10/234

摘要： The invention relates to compounds which correspond to the general formula (I) below: in which: R1 and R2 represent, independently of one another, a C4 to C12 acyclic hydrocarbon group; R3 represents H; a C1 to C12 acyclic hydrocarbon group with optionally one or more heteroatoms; a C5 or C6 cyclic hydrocarbon group; or a 5- or 6-membered heterocyclic group; R4 represents H or a C1 to C12 acyclic hydrocarbon group with optionally one or more heteroatoms; R5 and R6 represent, independently of one another, H; a C1 to C12 acyclic hydrocarbon group with optionally one or more heteroatoms; a C5 or C6 cyclic hydrocarbon group; or a 5- or 6-membered heterocyclic group; on the condition however that R5 and R6 do not each represent H.

公开(公告)号：US20130259776A1

公开(公告)日：2013-10-03

申请号：US13989749

申请日：2011-11-24

申请人： Xavier Heres ,  Fabien Burdet ,  Julien Borrini ,  Marie-Therese Duchesne ,  Marinella Mazzanti ,  Gilles Bernier ,  Stephane Pellet-Rostaing ,  Alain Favre-Reguillon ,  Marc Lemaire

发明人： Xavier Heres ,  Fabien Burdet ,  Julien Borrini ,  Marie-Therese Duchesne ,  Marinella Mazzanti ,  Gilles Bernier ,  Stephane Pellet-Rostaing ,  Alain Favre-Reguillon ,  Marc Lemaire

IPC分类号： C22B60/02

CPC分类号： C22B60/0295 ,  C01G56/001 ,  C22B3/0012 ,  C22B60/026 ,  G21C19/46 ,  G21F9/12 ,  G21F9/125 ,  Y02P10/234 ,  Y02W30/883

摘要： A process which allows separation of americium present in an acid aqueous phase or in an organic phase from the other metal elements also found in this phase, by complexation of the americium with a water-soluble ethylenediamine derivative; and a process for selective recovery of americium from an acid aqueous phase containing, in addition to americium, other metal elements, which comprises the application of this separation process.

摘要翻译： 通过使ium by与水溶性乙二胺衍生物络合，能够将存在于酸水相或有机相中的allows与本相中也发现的其它金属元素分离的方法; 以及从含有除ium之外的其它金属元素的酸性水相中选择性回收a的方法，其中包括应用该分离过程。

公开(公告)号：US20130022519A1

公开(公告)日：2013-01-24

申请号：US13555606

申请日：2012-07-23

申请人： Nicholas Warwick Bristow ,  Mark S. Chalmers ,  James Andrew Davidson ,  Bryn Llywelyn Jones ,  Paul Robert Kucera ,  Nick Lynn ,  Peter Douglas Macintosh ,  Jessica Mary Page ,  Thomas Charles Pool ,  Marcus Worsley Richardson ,  Karin Helene Soldenhoff ,  Kelvin John Taylor ,  Colin Wayrauch

发明人： Nicholas Warwick Bristow ,  Mark S. Chalmers ,  James Andrew Davidson ,  Bryn Llywelyn Jones ,  Paul Robert Kucera ,  Nick Lynn ,  Peter Douglas Macintosh ,  Jessica Mary Page ,  Thomas Charles Pool ,  Marcus Worsley Richardson ,  Karin Helene Soldenhoff ,  Kelvin John Taylor ,  Colin Wayrauch

IPC分类号： C22B60/02

CPC分类号： C22B60/0282 ,  C01B25/237 ,  C01G43/003 ,  C01G43/01 ,  C22B60/026

摘要： A process for the extraction of uranium compounds from wet-process phosphoric acid includes lowering the iron concentration of the wet-process phosphoric acid and reducing the valency of any remaining ferric iron in the wet-process phosphoric acid to ferrous iron, and then extracting uranium compounds from the wet-process phosphoric acid. The process can include separating a side stream from a feed stream of wet-process phosphoric acid, wherein the side stream has a greater concentration of the uranium compounds than the feed stream by filtration. Extracting uranium compounds from the wet-process phosphoric acid can be by ion exchange process or by solvent extraction.

摘要翻译： 从湿法磷酸提取铀化合物的方法包括降低湿法磷酸的铁浓度，并将湿法磷酸中剩余的三价铁的价态降低为二价铁，然后提取铀 来自湿法磷酸的化合物。 该方法可以包括从湿法磷酸的进料流中分离侧流，其中侧流比通过过滤的进料流具有更大的铀化合物浓度。 从湿法磷酸中提取铀化合物可以通过离子交换法或溶剂萃取法。

公开(公告)号：US20120035332A1

公开(公告)日：2012-02-09

申请号：US13251106

申请日：2011-09-30

申请人： Mamadou S. Diallo ,  Jean Frechet ,  Emine Boz

发明人： Mamadou S. Diallo ,  Jean Frechet ,  Emine Boz

IPC分类号： C08G73/10 ,  E21C37/00 ,  C08G73/04 ,  E21B43/28 ,  B82Y30/00

CPC分类号： C22B60/0278 ,  C08G73/028 ,  C22B60/026

摘要： Methods and facilities are provided for extracting a metal, such as an actinide from a solid, such as an ore. A novel class of dendritic macromolecules is provided for use in such extraction having a core, a hyperbranched structure, and a plurality of units satisfying the formula —NR2(C═O)R1, in which R1 is not a continuation of the hyperbranched structure.

摘要翻译： 提供了用于从诸如矿石的固体中提取金属如锕系元素的方法和设备。 提供了一类新颖的树枝状大分子，用于具有核心，超支化结构和满足式-NR2（C = O）R1的多个单元的提取中，其中R1不是超支化结构的延续。

公开(公告)号：US20040242769A1

公开(公告)日：2004-12-02

申请号：US10488621

申请日：2004-03-02

发明人： Charles Madic ,  Laurence Berthon ,  Nicole Zorz ,  Helene Coulombeau ,  Fabienne Testard ,  Thomas Zemb ,  Sebastien Gibanel ,  Chantal Larpent ,  Krystyna Baczko

IPC分类号： C08H001/00

CPC分类号： B01D15/00 ,  C07C235/12 ,  C22B60/026 ,  G21F9/04 ,  G21F9/10

摘要： The invention relates to a heat-sensitive compound having the property of being soluble in water below a critical temperature Tc and insoluble in water above this temperature Tc, this property being thermally reversible, characterized in that it comprises a first amphiphilic and thermally reversible part corresponding to one of the following formulae (I) and (II): 1 in which i is an integer ranging from 1 to 20 and j is an integer ranging from 3 to 30. This compound can be used to extract a chemical entity, such as uranium.

摘要翻译： 本发明涉及具有在临界温度Tc以下可溶于水的性质的热敏化合物，其不溶于高于该温度Tc的水中，该性质是热可逆的，其特征在于其包含对应于第一亲水性和热可逆部分 为下式（I）和（II）之一：其中i为1至20的整数，j为3至30的整数。该化合物可用于提取化学实体，例如铀 。

公开(公告)号：US06312654B1

公开(公告)日：2001-11-06

申请号：US09508915

申请日：2000-03-16

申请人： Giuseppe Modolo ,  Reinhard Odoj

发明人： Giuseppe Modolo ,  Reinhard Odoj

IPC分类号： C22B5900

CPC分类号： C07F9/16 ,  C22B3/007 ,  C22B59/00 ,  C22B60/026 ,  C22B60/0295 ,  G21F9/125 ,  Y02P10/234

摘要： The invention relates to a method of separating trivalent actinides from at least one trivalent lanthanide and/or yttrium, whereby the trivalent actinides are extracted from an aqueous solution containing a H+ concentration of 0.01 to 2 moles/liter by using as extractant an (aryl)dithiophosphinic acid of the Formula R1R2PS (SH), in which R1 is phenyl or naphthyl, R2 is phenyl or naphthyl, or R1 and R2 are each phenyl or naphthyl substituted by methyl, ethyl, propyl, isopropyl, cyano, nitro, or halogen, with addition of an extraction synergist selected from the group consisting of trioctylphosphate, tris-(2-propylpentyl)-phosphate, and tris-(2-ethylhexyl)-phosphate. The use of the synergist in the extraction allows for a more selective extraction.

摘要翻译： 本发明涉及一种从至少一种三价镧系元素和/或钇中分离出三价锕系元素的方法，其中三价锕系元素通过使用（芳基）取代物从含有0.01〜2摩尔/升H +浓度的水溶液中提取， 式R1R2PS（SH）的二硫代次膦酸，其中R1是苯基或萘基，R2是苯基或萘基，或R1和R2各自被甲基，乙基，丙基，异丙基，氰基，硝基或卤素取代的苯基或萘基， 加入选自磷酸三辛酯，三（2-丙基戊基） - 磷酸酯和磷酸三（2-乙基己基）酯的萃取增效剂。 在提取中使用增效剂允许更有选择性的提取。

公开(公告)号：US5698169A

公开(公告)日：1997-12-16

申请号：US459618

申请日：1995-06-02

申请人： M. Frederick Hawthorne ,  Gary B. Dunks

发明人： M. Frederick Hawthorne ,  Gary B. Dunks

IPC分类号： C01D17/00 ,  C01F11/00 ,  C08G77/398 ,  C22B3/26 ,  C22B60/02 ,  C22B61/00 ,  G21C19/46 ,  G21F9/00 ,  G21F9/12 ,  C01F1/00

CPC分类号： C01D17/00 ,  C01F11/005 ,  C08G77/398 ,  C22B3/0041 ,  C22B60/026 ,  C22B61/00 ,  G21C19/46 ,  G21F9/007 ,  G21F9/125 ,  Y02P10/234 ,  Y02W30/883

摘要： Methods and agents for extracting cesium and strontium ions from aqueous solutions, including aqueous fission product waste solutions, are disclosed using substituted metal dicarbollide and/or dicarbaextranide ions containing one or more chemical groups that increase solubility of the substituted metal dicarbollide or dicarbaextranide ions in non-nitrated, non-chlorinated solvents, or using metal dicarbollide or dicarbaextranide ion-substituted silicones.

摘要翻译： 公开了使用取代的金属二碳化物和/或二乙二醇+ E，ot + n + EE的离子从水溶液中提取铯和锶离子的方法和试剂，所述方法和试剂含有一种或多种增加其溶解度的化学基团 在非硝化的非氯化溶剂中使用取代的金属二碳化物或二碳黑+ E，otl n + EE ide离子，或者使用金属二碳化物或二乙基葡萄糖+ E，otl n + EE理想离子取代的有机硅。

公开(公告)号：US5229086A

公开(公告)日：1993-07-20

申请号：US673124

申请日：1991-03-20

申请人： Edmond K. Lam ,  Manfred G. Neven ,  Robert A. Steane ,  Kenneth F. Ko

发明人： Edmond K. Lam ,  Manfred G. Neven ,  Robert A. Steane ,  Kenneth F. Ko

IPC分类号： C22B3/30 ,  C22B60/02

CPC分类号： C22B3/0017 ,  C22B60/026 ,  Y02P10/234

摘要： A process for removing molybdenum from uranium bearing solutions reduces molybdenum contamination of uranium product. The process employs solvent extraction techniques to remove molybdenum by using a molybdenum-selective extraction reagent of the chelating hydroxy-oxime type. The molybdenum-loaded extractant is stripped with dilute alkali for reuse. Where the uranium bearing solution originates from a solvent extraction process, a pretreatment stage is applied using an agent to remove entrained uranium extractant.

摘要翻译： 从含铀溶液中除去钼的方法可减少铀产品的钼污染。 该方法采用溶剂萃取技术通过使用螯合羟基 - 肟类型的钼选择性萃取剂来除去钼。 将钼负载的萃取剂用稀碱汽提，再次使用。 如果铀轴承溶液来自溶剂萃取过程，则使用试剂施加预处理阶段以除去夹带的铀萃取剂。