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1. 发明授权

US06312653B1 Method for separating actinides and lanthanides by liquid-liquid extraction using calixarenes 失效
标题翻译：使用杯芳烃液液萃取分离锕系元素和镧系元素的方法
公开(公告)号：US06312653B1
公开(公告)日：2001-11-06
申请号：US09485688
申请日：2000-04-27
申请人： Laetitia Delmau , Nicole Simon , Jean-François Dozol , Bernard Tournois , Christine Roussin-Bouchard , Serge Eymard , Volker Böhmer , Cordula Grüttner , Alexander Shivanyuk , Christian Musigmann
发明人： Laetitia Delmau , Nicole Simon , Jean-François Dozol , Bernard Tournois , Christine Roussin-Bouchard , Serge Eymard , Volker Böhmer , Cordula Grüttner , Alexander Shivanyuk , Christian Musigmann
IPC分类号： C22B5900
CPC分类号： C22B3/0077 , C22B3/205 , C22B59/00 , C22B60/026 , G21F9/04 , G21F9/125 , Y02P10/234
摘要： The invention involves a process for separating actinides and lanthanides by liquid-liquid extraction by means of calixarenes. These calixarenes have the formula: with R1 and R2 being alkyl groups or o-nitrophenoxy alkyl groups and R3 and R4 being aryl groups, and they are used in an organic liquid phase containing an organic diluent. The diluent and the calixarene concentration of the organic phase are chosen so as to ensure an enrichment of the organic phase with the actinide(s) and/or lanthanide(s) to be separated from an aqueous acid or saline solution.
摘要翻译：本发明涉及通过杯芳烃液 - 液萃取分离锕系元素和镧系元素的方法。这些杯芳烃具有下式：其中R1和R2是烷基或邻硝基苯氧基烷基，R3和R4是芳基，它们是用于含有机稀释剂的有机液相中。选择有机相的稀释剂和杯芳烃浓度以确保有机相与锕系和/或镧系元素的浓缩从酸性或盐水溶液中分离出来。

2. 发明授权

US06350419B1 Combined supported liquid membrane/strip dispersion process for the removal and recovery of metals 失效
标题翻译：用于金属去除和回收的组合支撑液膜/带分散方法
公开(公告)号：US06350419B1
公开(公告)日：2002-02-26
申请号：US09499065
申请日：2000-02-04
申请人： W. S. Winston Ho
发明人： W. S. Winston Ho
IPC分类号： C22B5900
CPC分类号： B01D61/246 , B01D11/0415 , B01D61/38 , C07F9/17 , C22B3/007 , C22B23/0453 , Y02P10/234
摘要： The present invention provides a novel process for the removal and recovery of metals from waste waters and process streams. The process of the present invention utilizes a combination of a supported liquid membrane (SLM) and a strip dispersion to improve extraction of the target species while increasing membrane stability and reducing processing costs. The process is illustrated with cobalt removal and recovery with unexpected results, such as unexpectedly high cobalt fluxes and a very high cobalt concentration in the strip solution recovered. This process can remove other metals, such as copper, zinc, nickel, mercury, lead, cadmium, silver, europium, lanthanum, neodymium, praseodymium, gadolinium, and selenium, from the feed stream to provide a concentrated strip solution of the target species.
摘要翻译：本发明提供了从废水和工艺流中除去和回收金属的新方法。本发明的方法利用支撑液膜（SLM）和带状分散体的组合来改善目标物质的提取，同时提高膜稳定性并降低加工成本。该过程用钴去除和恢复来说明，具有意想不到的结果，例如意外高的钴通量和在回收的带状溶液中的非常高的钴浓度。该方法可以从进料流中除去其它金属，例如铜，锌，镍，汞，铅，镉，银，铕，镧，钕，镨，钆和硒，以提供目标物质的浓缩带状溶液。

3. 发明授权

US06312654B1 Method of separating a trivalent actinide from a trivalent lanthanide and/or yttrium in aqueous solution 失效
标题翻译：从三价镧系元素和/或钇在水溶液中分离三价锕系元素的方法
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。

4. 发明授权

US06309441B1 Reduction-melting process to form rare earth-transition metal alloys and the alloys 失效
标题翻译：还原熔炼工艺形成稀土 - 过渡金属合金和合金
公开(公告)号：US06309441B1
公开(公告)日：2001-10-30
申请号：US09284688
申请日：1999-04-16
申请人： Mark Gilbert Benz , Robert John Zabala , Vladimir Nikolayevich Radchenko , Anatoly Danilovich Riabtsev , Oleg Vladimirovich Tarlov
发明人： Mark Gilbert Benz , Robert John Zabala , Vladimir Nikolayevich Radchenko , Anatoly Danilovich Riabtsev , Oleg Vladimirovich Tarlov
IPC分类号： C22B5900
CPC分类号： H01F1/057 , C22B5/04 , C22B9/18 , C22B59/00 , H01F1/0553 , H01F1/0573
摘要： Rare earth alloy compositions, such as the neodymium iron boron (NdFeB) alloy are made by a Reduction-Melting process. The Reduction-Melting process comprises preparing a primary electrode containing at least one compound or metal to be reduced to form a refined metal or metal alloy ingot; placing the electrode in an electroslag refining furnace; passing a current through the electrode into a molten flux or slag to melt the electrode; reducing the metal or compound in the slag while forming an oxide by-product; collecting melted metal or metal alloy droplets falling through the slag; forming an ingot of the metal or metal alloy from the melted droplets; and collecting the solid oxide byproducts in the slag.
摘要翻译：稀土合金组合物，例如钕铁硼（NdFeB）合金通过还原熔融法制备。还原熔融方法包括制备含有至少一种待还原的化合物或金属的主电极以形成精炼的金属或金属合金锭; 将电极放置在电渣精炼炉中; 使电流通过电极进入熔融焊剂或熔渣以熔化电极; 在形成氧化物副产物的同时还原炉渣中的金属或化合物; 收集熔融的金属或金属合金液滴落入炉渣; 从熔融的液滴中形成金属或金属合金的锭; 并在炉渣中收集固体氧化物副产物。

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