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1. 发明申请

US20190245216A1 METHOD OF RECOVERING METAL COMPOUNDS FROM SOLID OXIDE FUEL CELL SCRAP 审中-公开
公开(公告)号：US20190245216A1
公开(公告)日：2019-08-08
申请号：US15888571
申请日：2018-02-05
申请人： BLOOM ENERGY CORPORATION
发明人： Lunzhi LIAO , Christopher Jeffrey HARTLEY , Andrew SARMIENTO
IPC分类号： H01M8/008 , C22B59/00 , C22B7/00 , C01F17/00 , C01G25/00 , C01G25/02 , C01G53/00 , C01G45/00 , C01F11/00
CPC分类号： H01M8/008 , C01F11/005 , C01F17/0006 , C01F17/0043 , C01G25/003 , C01G25/006 , C01G25/02 , C01G45/003 , C01G53/003 , C22B7/007 , C22B59/00
摘要： A method of recovering metal compounds from solid oxide fuel cell scrap includes processing the solid oxide fuel cell scrap to form a powder, digesting the processed scrap, extracting lanthanum oxide and cerium oxide from a solution containing the digested processed scrap, extracting a zirconium compound from the solution after extracting the lanthanum oxide and cerium oxide, and extracting scandium compound from the solution extracting the zirconium compound from the solution.

2. 发明授权

US09869005B2 Processes for rare earths recovery from wet-process phosphoric acid 有权
公开(公告)号：US09869005B2
公开(公告)日：2018-01-16
申请号：US14416267
申请日：2013-07-21
申请人： K-TECHNOLOGIES, INC.
发明人： William W. Berry , Thomas E. Baroody
IPC分类号： C22B59/00 , C22B3/42 , B01J39/20 , B01J45/00 , B01J47/026 , C01F17/00 , C22B3/06 , B01J39/05 , B01J49/06 , B01J49/53
CPC分类号： C22B59/00 , B01J39/05 , B01J39/20 , B01J45/00 , B01J47/026 , B01J49/06 , B01J49/53 , C01F17/0006 , C01F17/0081 , C22B3/06 , C22B3/42 , Y02P10/234 , B01J39/07
摘要： In alternative embodiments, the invention provides processes and methods for extracting and recovering rare earth materials from a wet-process phosphoric acid using one or more continuous ion exchange resin systems. In alternative embodiments, the method is particularly suited for use in extracting and recovering multiple rare earth materials present in low concentrations contained in wet-process phosphoric acid.

3. 发明授权

US09376736B2 Method for separating and recovering rare-earth elements 有权
标题翻译：稀土元素分离回收方法
公开(公告)号：US09376736B2
公开(公告)日：2016-06-28
申请号：US14370666
申请日：2012-12-21
申请人： Hitachi Metals, Ltd.
发明人： Motoyuki Miyata , Hiroki Yamamoto , Hiroshi Sasaki , Toshio Yasuda , Katsuyoshi Furusawa
IPC分类号： C22B59/00 , C01F17/00 , B09B3/00 , C22B7/00
CPC分类号： C22B59/00 , B09B3/0016 , C01F17/00 , C01F17/0006 , C22B7/006 , Y02P10/234
摘要： A method for separating and recovering a plurality of rare-earth elements, the method including a step of introducing, into a liquid, a mixture containing a rare-earth oxychloride and a rare-earth chloride, the rare-earth oxychloride constituted from a rare-earth element different from a rare-earth element constituting the rare-earth chloride, thereby obtaining an insoluble matter containing the rare-earth oxychloride and a liquid in which the rare-earth chloride is dissolved, a step of recovering the rare-earth oxychloride from the insoluble matter, and a step of recovering the rare-earth chloride from the liquid in which the rare-earth chloride is dissolved.
摘要翻译：一种用于分离和回收多种稀土元素的方法，所述方法包括将含有稀土氯氧化物和稀土氯化物的混合物引入液体的步骤，所述稀土氯氧化物由罕见的与构成稀土类氯化物的稀土元素不同的元素，得到含有稀土氯氧化物的不溶物和溶解有稀土类氯化物的液体，回收氯化氧化铈的工序由不溶性物质和从其中溶解有稀土氯化物的液体中回收稀土氯化物的步骤。

4. 发明申请

US20140356258A1 Method for Separating and Recovering Rare-Earth Elements 有权
标题翻译：分离和回收稀土元素的方法
公开(公告)号：US20140356258A1
公开(公告)日：2014-12-04
申请号：US14370666
申请日：2012-12-21
申请人： Hitachi Metals, Ltd.
发明人： Motoyuki Miyata , Hiroki Yamamoto , Hiroshi Sasaki , Toshio Yasuda , Katsuyoshi Furusawa
IPC分类号： C22B59/00
CPC分类号： C22B59/00 , B09B3/0016 , C01F17/00 , C01F17/0006 , C22B7/006 , Y02P10/234
摘要： A method for separating and recovering a plurality of rare-earth elements, the method including a step of introducing, into a liquid, a mixture containing a rare-earth oxychloride and a rare-earth chloride, the rare-earth oxychloride constituted from a rare-earth element different from a rare-earth element constituting the rare-earth chloride, thereby obtaining an insoluble matter containing the rare-earth oxychloride and a liquid in which the rare-earth chloride is dissolved, a step of recovering the rare-earth oxychloride from the insoluble matter, and a step of recovering the rare-earth chloride from the liquid in which the rare-earth chloride is dissolved.
摘要翻译：一种用于分离和回收多种稀土元素的方法，所述方法包括将含有稀土氯氧化物和稀土氯化物的混合物引入液体的步骤，所述稀土氯氧化物由罕见的与构成稀土类氯化物的稀土元素不同的元素，得到含有稀土氯氧化物的不溶物和溶解有稀土类氯化物的液体，回收氯化氧化铈的工序由不溶性物质和从其中溶解有稀土氯化物的液体中回收稀土氯化物的步骤。

5. 发明授权

US08524176B2 Rare earth recovery from phosphor 有权
标题翻译：稀土从磷光体回收
公开(公告)号：US08524176B2
公开(公告)日：2013-09-03
申请号：US13714276
申请日：2012-12-13
申请人： REEnewal Corporation
发明人： Narayan V. Thakur
IPC分类号： C01F17/00
CPC分类号： C22B59/00 , C01F17/0006 , C01F17/0043 , C01P2006/80
摘要： A method is described to produce high purity rare earth oxides of the elements La, Ce, Tb, Eu and Y from phosphor, such as waste phosphor powders originating in various consumer products. One approach involves leaching the powder in two stages and converting to two groups of relatively high purity mixed rare earth oxides. The first group containing Eu and Y is initially separated by solvent extraction. Once separated, Eu is purified using Zn reduction with custom apparatus. Y is purified by running another solvent extraction process using tricaprylmethylammonium chloride. Ce is separated from the second group of oxides, containing La, Ce and Tb by using solvent extraction. Subsequently, La and Tb are separated from each other and converted to pure oxides by using solvent extraction processes. A one-stage leaching process, wherein all rare earths get leached into the solution and subsequently processed, is also described.
摘要翻译：描述了一种从磷光体中产生元素La，Ce，Tb，Eu和Y的高纯度稀土氧化物的方法，例如源自各种消费品的废磷粉末。一种方法是将粉末分两个阶段浸出并转化成两组相对较高纯度的混合稀土氧化物。含有Eu和Y的第一组最初通过溶剂萃取分离。一旦分离，使用定制装置使用Zn还原来纯化Eu。通过使用三氯丙基甲基氯化铵进行另一种溶剂萃取方法纯化Y。通过溶剂萃取，Ce与含有La，Ce和Tb的第二组氧化物分离。随后，通过使用溶剂萃取方法将La和Tb彼此分离并转化为纯氧化物。还描述了一阶段浸出方法，其中所有稀土被浸出到溶液中并随后被处理。

6. 发明授权

US08216532B1 Methods of recovering rare earth elements 有权
标题翻译：回收稀土元素的方法
公开(公告)号：US08216532B1
公开(公告)日：2012-07-10
申请号：US13163325
申请日：2011-06-17
申请人： Albert A. Vierheilig
发明人： Albert A. Vierheilig
IPC分类号： C01G17/00
CPC分类号： B01J29/06 , B01J20/186 , B01J20/3408 , B01J20/345 , B01J29/061 , B01J29/90 , B01J38/02 , B01J38/60 , B01J38/68 , C01F17/00 , C01F17/0006 , C22B7/006 , C22B59/00 , Y02P10/234 , Y02P10/236 , Y02P20/584
摘要： Processes described include reacting a fresh or spent catalyst, or sorbent, with a solution containing an extracting agent (such as an acid or a base). Preferably, the catalyst contains both alumina and a molecular sieve (or a sorbent), and the reaction is performed under relatively mild conditions such that the majority of the base material does not dissolve into the solution. Thus, the catalyst can be re-used, and in certain instances the performance of the catalyst even improves, with or without re-incorporating certain of the metals back into the catalyst. Additionally, metals contained in the catalyst, such as Na, Mg, Al, P, S, Cl, K, Ca, V, Fe, Ni, Cu, Zn, Sr, Zn Sb, Ba, La, Ce, Pr, Nd, Pb, or their equivalent oxides, can be removed from the catalyst. Some of the metals that are removed are relatively valuable (such as the rare earth elements of La, Ce, Pr and Nd).
摘要翻译：所述方法包括使新鲜或废催化剂或吸附剂与含有萃取剂（例如酸或碱）的溶液反应。优选地，催化剂含有氧化铝和分子筛（或吸附剂），反应在相对温和的条件下进行，使得大部分基材不溶解于溶液中。因此，可以重新使用催化剂，并且在某些情况下催化剂的性能甚至改善，有或没有将某些金属重新引入催化剂。另外，催化剂中所含的金属如Na，Mg，Al，P，S，Cl，K，Ca，V，Fe，Ni，Cu，Zn，Sr，Zn Sb，Ba，La，Ce，Pr，Nd ，Pb或其等价氧化物可以从催化剂中除去。被去除的一些金属是相对有价值的（例如La，Ce，Pr和Nd的稀土元素）。

7. 发明授权

US07799293B2 Actinide extraction methods 失效
标题翻译：锕系提取方法
公开(公告)号：US07799293B2
公开(公告)日：2010-09-21
申请号：US11530508
申请日：2006-09-11
申请人： Dean R. Peterman , John R. Klaehn , Mason K. Harrup , Richard D. Tillotson , Jack D. Law
发明人： Dean R. Peterman , John R. Klaehn , Mason K. Harrup , Richard D. Tillotson , Jack D. Law
IPC分类号： B01D11/04 , C01G56/00 , C22B60/00
CPC分类号： C01G56/001 , C01F17/0006 , C07F9/304 , C22B3/007 , C22B59/00 , Y02P10/234
摘要： Methods of separating actinides from lanthanides are disclosed. A regio-specific/stereo-specific dithiophosphinic acid having organic moieties is provided in an organic solvent that is then contacted with an acidic medium containing an actinide and a lanthanide. The method can extend to separating actinides from one another. Actinides are extracted as a complex with the dithiophosphinic acid. Separation compositions include an aqueous phase, an organic phase, dithiophosphinic acid, and at least one actinide. The compositions may include additional actinides and/or lanthanides. A method of producing a dithiophosphinic acid comprising at least two organic moieties selected from aromatics and alkyls, each moiety having at least one functional group is also disclosed. A source of sulfur is reacted with a halophosphine. An ammonium salt of the dithiophosphinic acid product is precipitated out of the reaction mixture. The precipitated salt is dissolved in ether. The ether is removed to yield the dithiophosphinic acid.
摘要翻译：公开了从镧系元素分离锕系元素的方法。在有机溶剂中提供具有有机部分的区域特异性/立体特异性二硫代次膦酸，然后与含有锕系元素和镧系元素的酸性介质接触。该方法可以延伸到彼此分离锕系元素。提取锕系元素作为与二硫代次膦酸的络合物。分离组合物包括水相，有机相，二硫代次膦酸和至少一种锕系元素。组合物可以包括另外的锕系元素和/或镧系元素。还公开了包含至少两个选自芳族化合物和烷基的有机部分的二硫代次膦酸的方法，每个部分具有至少一个官能团。硫源与卤代膦反应。二硫代次膦酸产物的铵盐从反应混合物中沉淀出来。将沉淀的盐溶于乙醚中。除去乙醚，得到二硫代次膦酸。

8. 发明授权

US5639433A Extraction of rare earth elements using alkyl phosphinic acid or salt/alkyl or aryl phosphonic acid or ester blends as extractant 失效
标题翻译：使用烷基次膦酸或盐/烷基或芳基膦酸或酯共混物作为萃取剂萃取稀土元素
公开(公告)号：US5639433A
公开(公告)日：1997-06-17
申请号：US617451
申请日：1996-03-19
申请人： Chengye Yuan , Hengli Ma
发明人： Chengye Yuan , Hengli Ma
IPC分类号： B01D11/04 , C01F17/00 , C22B3/38 , C22B59/00
CPC分类号： C01F17/0006 , C22B3/0066 , C22B59/00 , Y02P10/234
摘要： A method is disclosed whereby rare earth elements are extracted from acidic solutions thereof using, as an extractant, a mixture of an alkyl (C.sub.4 -C.sub.12) phosphinic acid or salt and an alkyl (C.sub.4 -C.sub.12) or aryl phosphonic acid or ester thereof.
摘要翻译：公开了一种方法，其中使用烷基（C 4 -C 12）次膦酸或其盐与烷基（C 4 -C 12）或芳基膦酸或其酯的混合物作为萃取剂，从其酸性溶液中提取稀土元素。

9. 发明授权

US5188735A Separation of rare earth values by liquid/liquid extraction 失效
标题翻译：通过液/液萃取分离稀土值
公开(公告)号：US5188735A
公开(公告)日：1993-02-23
申请号：US657985
申请日：1991-02-21
申请人： Thierry Delloye , Jean-Louis Sabot
发明人： Thierry Delloye , Jean-Louis Sabot
IPC分类号： C01F17/00 , C22B3/38 , C22B59/00
CPC分类号： C01F17/0006 , C22B3/0052 , C22B3/0077 , C22B3/0082 , C22B3/0093 , C22B3/0094 , C22B59/00 , Y02P10/234
摘要： The rare earth values contained in an aqueous solution of the nitrates of at least two rare earth elements are conveniently separated by first liquid/liquid extracting such aqueous nitrate solution with a liquid organic phase containing a P(O)R.sub.1 R.sub.2 R.sub.3 organophosphorus extractant.
摘要翻译：包含在至少两种稀土元素的硝酸盐的水溶液中的稀土值通过用含有P（O）R 1 R 2 R 3有机磷萃取剂的液体有机相的第一液/液萃取这种硝酸水溶液来方便地分离。

10. 发明授权

US4927609A Recovery of gallium/rare earth values from oxide mixtures thereof 失效
标题翻译：从其氧化物混合物中回收镓/稀土值
公开(公告)号：US4927609A
公开(公告)日：1990-05-22
申请号：US772672
申请日：1985-09-05
申请人： Alain Leveque , Michel Triollier
发明人： Alain Leveque , Michel Triollier
IPC分类号： B01D11/04 , C01F17/00 , C01G15/00 , C22B3/26 , C22B58/00 , C22B59/00
CPC分类号： C22B58/00 , C01F17/0006 , C01G15/003 , C22B3/0005 , C22B59/00 , Y02P10/234 , Y10S423/14
摘要： Gallium and rare earth values are recovered from oxide mixtures thereof by acidulating/dissolving such admixtures in an acid medium, and then liquid/liquid extracting the resulting solution and ultimately recovering said values from the phases which separate. The subject process is advantageously applied, for example, to the recovery of gallium and gadolinium from the waste fines resulting from the production of the garnets Gd.sub.3 Ga.sub.5 O.sub.12.
摘要翻译：通过酸化/溶解这种混合物在酸性介质中，从其氧化物混合物中回收镓和稀土值，然后液/液萃取所得溶液并最终从分离的相中回收所述值。本发明方法有利地应用于例如从产生石榴石Gd 3 Ga 5 O 12产生的废细粉中回收镓和钆。

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