公开(公告)号：US20170291827A1

公开(公告)日：2017-10-12

申请号：US15511926

申请日：2015-09-22

申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

发明人： Manuel MIGUIRDITCHIAN ,  Victor HAQUIN ,  Vincent PACARY ,  Richard LAUCOURNET ,  Marc MONTUIR

IPC分类号： C01F17/00 ,  C22B7/00 ,  C22B59/00 ,  C22B3/28

CPC分类号： C01F17/0006 ,  C01F17/0075 ,  C01P2006/80 ,  C22B3/0005 ,  C22B3/0012 ,  C22B7/007 ,  C22B59/00 ,  C22B60/0226 ,  C22B60/0239 ,  C22B60/026 ,  Y02P10/234

摘要： The invention relates to a hydrometallurgical process which makes it possible to selectively recover at least one “heavy” rare earth metal, i.e. a rare earth metal with an atomic number at least equal to 62, that is in an acidic aqueous phase resulting from the treatment of spent or scrapped permanent magnets. It also relates to a hydrometallurgical process which makes it possible to selectively recover, on the one hand, at least one heavy rare earth metal present in an acidic aqueous phase resulting from the treatment of spent or scrapped permanent magnets and, on the other hand, at least one “light” rare earth metal, i.e. a rare earth metal with an atomic number at most equal to 61, that is also in this acidic aqueous phase. The invention has in particular an application in the recycling of rare earth metals present in spent or scrapped permanent magnets of the type Neodymium-Iron-Boron (or NdFeB) and, in particular, dysprosium, praseodymium and neodymium, and also in the recycling of samarium present in spent or scrapped permanent magnets of the type samarium-cobalt (or SmCo).

公开(公告)号：US20140023571A1

公开(公告)日：2014-01-23

申请号：US13981306

申请日：2012-01-19

申请人： Jean-Jacques Braconnier ,  Alain Rollat

发明人： Jean-Jacques Braconnier ,  Alain Rollat

IPC分类号： C22B59/00

CPC分类号： C22B59/00 ,  C01F17/0068 ,  C01F17/0075 ,  C09K11/01 ,  H01J9/52 ,  Y02W30/72 ,  Y02W30/828

摘要： An acid treatment, in a liquid medium, of a solid containing a halophosphate and a rare earth compound is described. Further described, is the addition of a base to the medium obtained previously and separation of a solid phase from a liquid phase; mixing and calcination of the solid obtained previously with an alkaline solid compound; redispersing the calcined product in water, separation of the solid product from the suspension obtained in the preceding step; dispersing this solid in water and acidification of the dispersion and separation of the solid from this dispersion.

摘要翻译： 描述了在液体介质中含有卤代磷酸盐和稀土化合物的固体的酸处理。 进一步描述的是向先前获得的介质中加入碱，并将液相从液相中分离出来; 先用碱固体化合物混合和煅烧固体; 将煅烧产物再分散在水中，将固体产物与前述步骤获得的悬浮液分离; 将该固体分散在水中并使分散体酸化并将固体与该分散体分离。

公开(公告)号：US08137645B2

公开(公告)日：2012-03-20

申请号：US12710601

申请日：2010-02-23

申请人： Digamber Gurudas Porob ,  Alok Mani Srivastava ,  Prasanth Kumar Nammalwar ,  Gopi Chandran Ramachandran ,  Holly Ann Comanzo

发明人： Digamber Gurudas Porob ,  Alok Mani Srivastava ,  Prasanth Kumar Nammalwar ,  Gopi Chandran Ramachandran ,  Holly Ann Comanzo

IPC分类号： C01F17/00

CPC分类号： C01F17/0043 ,  C01B25/305 ,  C01F5/38 ,  C01F11/38 ,  C01F17/0075 ,  C09K11/01 ,  C09K11/7734 ,  C09K11/7738 ,  C09K11/7777 ,  C09K11/778 ,  C09K11/7787 ,  C09K11/7794 ,  H01J9/52 ,  Y02W30/72 ,  Y02W30/828

摘要： A method of recovering a rare earth constituent from a phosphor is presented. The method can include a number of steps (a) to (d). In step (a), the phosphor is fired with an alkali material under conditions sufficient to decompose the phosphor into a mixture of oxides. A residue containing rare earth oxides is extracted from the mixture in step (b). In step (c), the residue is treated to obtain a solution, which comprises rare earth constituents in salt form. Rare earth constituents are separated from the solution in step (d).

摘要翻译： 提出了从荧光体中回收稀土成分的方法。 该方法可以包括多个步骤（a）至（d）。 在步骤（a）中，在足以将磷光体分解成氧化物混合物的条件下，用碱性材料烧制磷光体。 在步骤（b）中从混合物中提取含有稀土氧化物的残余物。 在步骤（c）中，将残余物处理得到包含盐形式的稀土组分的溶液。 在步骤（d）中稀土成分与溶液分离。

公开(公告)号：US5021192A

公开(公告)日：1991-06-04

申请号：US30133

申请日：1987-03-26

申请人： Claire David ,  Claude Magnier

发明人： Claire David ,  Claude Magnier

IPC分类号： B01J13/00 ,  B01J23/10 ,  C01F17/00

CPC分类号： B82Y30/00 ,  B01J23/10 ,  C01F17/0043 ,  C01F17/0075 ,  C01P2004/64

摘要： Highly concentrated, aqueous colloidal dispersions of a cerium (IV) compound, adapted for the impregnation of catalyst supports, are prepared by reacting an aqueous solution of a cerium (IV) salt with a base, to precipitate a certain cerium hydroxynitrate, separating and washing said precipitate, and then dispersing the washed precipitate in an aqueous acid medium.

摘要翻译： 通过使铈（IV）盐的水溶液与碱反应沉淀出某些羟基硝酸铈，分离和洗涤来制备用于浸渍催化剂载体的铈（IV）化合物的高浓度水性胶体分散体 所述沉淀物，然后将洗涤的沉淀物分散在含水酸性介质中。

公开(公告)号：US4356106A

公开(公告)日：1982-10-26

申请号：US255818

申请日：1981-04-20

申请人： James L. Woodhead ,  Graham Raw

发明人： James L. Woodhead ,  Graham Raw

IPC分类号： C01F17/00 ,  B01J13/00

CPC分类号： C01F17/0075 ,  C01F17/0043 ,  C01P2006/22

摘要： The present invention relates to compounds and more particularly to cerium compounds.According to one aspect of the present invention there is provided a process for the preparation of a dispersible cerium compound which comprises heating a substantially dry cerium (IV) oxide hydrate in the presence of a deaggregating agent to cause deaggregation of aggregated crystallites in the cerium (IV) oxide hydrate and produce a dry dispersible cerium compound.

摘要翻译： 本发明涉及化合物，更具体地涉及铈化合物。 根据本发明的一个方面，提供了一种制备可分散的铈化合物的方法，其包括在解聚剂存在下加热基本上干燥的氧化铈（IV）水合物，以引起铈中的聚集微晶的解聚（ IV）氧化物水合物并产生可干分散的铈化合物。

公开(公告)号：US20180237345A1

公开(公告)日：2018-08-23

申请号：US15895516

申请日：2018-02-13

申请人： James R. Glidewell Dental Ceramics, Inc.

发明人： Thomas C. Valenti ,  Kevin Michael Recor

IPC分类号： C04B35/488 ,  C01F17/00 ,  C01G37/00 ,  A61K6/02 ,  A61C13/083

CPC分类号： C04B35/488 ,  A61C13/0022 ,  A61C13/083 ,  A61K6/024 ,  C01F17/0075 ,  C01G25/02 ,  C01G37/00 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/63 ,  C01P2006/64 ,  C01P2006/80 ,  C04B35/486 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/40 ,  C04B2235/443 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/9661

摘要： Shaded, zirconia ceramic materials are disclosed that are suitable for use in dental applications. Ceramic bodies are made from a zirconia-containing ceramic material and a coloring composition comprising a terbium (Tb)-containing component and a chromium (Cr)-containing component as a coloring agent. The pre-shaded ceramic body is machinable into a dental restoration either as a bisque body or sintered body. A pre-shaded machinable sintered ceramic body may obviate the need for further processing steps, such as shading or sintering, and may be suitable for use in chair-side machining applications, such as in a dentist's office, significantly reducing the time to create a custom finished product.

公开(公告)号：US08501124B2

公开(公告)日：2013-08-06

申请号：US13264303

申请日：2010-04-02

申请人： Jean-Jacques Braconnier ,  Alain Rollat

发明人： Jean-Jacques Braconnier ,  Alain Rollat

IPC分类号： C01F17/00

CPC分类号： C01F17/0043 ,  C01B25/32 ,  C01B25/37 ,  C01F17/0068 ,  C01F17/0075 ,  C09K11/01 ,  C09K11/7792 ,  H01J9/52 ,  Y02W30/72 ,  Y02W30/828

摘要： A method is described for recovering rare earth elements from a solid mixture including a halophosphate and at least one compound of one or more rare earth elements. The method includes: (a) acid etching the mixture; (b) adding a base to bring the pH back up to a value of at least 1.5; (c) etching the solid from step (b) with a solution of soda or potash; (d) acid etching the solid from step (c) until a pH of less than 7 is obtained, resulting in a solid phase and a liquid phase including at least one rare earth salt, and separating the solid phase from the liquid phase.

摘要翻译： 描述了从包括卤代磷酸盐和至少一种一种或多种稀土元素的化合物的固体混合物中回收稀土元素的方法。 该方法包括：（a）酸蚀该混合物; （b）加入碱使pH恢复到至少1.5的值; （c）用苏打或钾盐溶液蚀刻来自步骤（b）的固体; （d）从步骤（c）酸蚀刻固体直到pH小于7，得到固相和包含至少一种稀土盐的液相，并从液相中分离出固相。

公开(公告)号：US20060018813A1

公开(公告)日：2006-01-26

申请号：US11189131

申请日：2005-07-25

申请人： Lane Bray

发明人： Lane Bray

IPC分类号： C22B60/00

CPC分类号： G21F9/08 ,  C01F11/36 ,  C01F17/0075 ,  C01P2006/88 ,  C22B3/065 ,  C22B3/44 ,  C22B26/20 ,  C22B59/00 ,  G21G4/08 ,  Y02P10/234

摘要： The present invention provides a method of separating and purifying Yttrium-90 (Y-90) from Strontium-90 (Sr-90). In addition, a zirconium (Zr) clean-up step for the Y-90 is provided. Uses of the Y-90 purified by the method include cancer research and treatment. Y-90 is particularly useful in cell directed therapy, e.g., where the Y-90 is attached directly or indirectly to a targeting molecule such as an antibody.

公开(公告)号：US5011671A

公开(公告)日：1991-04-30

申请号：US213189

申请日：1988-06-29

申请人： Jean-Luc Le Loarer

发明人： Jean-Luc Le Loarer

IPC分类号： B01J23/10 ,  C01F17/00

CPC分类号： C01F17/0043 ,  B01J23/10 ,  C01F17/0012 ,  C01F17/0068 ,  C01F17/0075 ,  C01F17/0081 ,  C01P2002/60 ,  C01P2006/13 ,  C01P2006/14 ,  C01P2006/16

摘要： The object of the present invention is a ceric oxide with new morphological characteristics. The invention also relates to one of the methods for obtaining said oxide.The method of the invention is characterized by the fact that a ceric hydroxide, prepared by base precipitation using a solution of a cerium salt, undergoes a solvo-thermal treatment before the calcination operation.The ceric oxide obtained has a large specific surface at high temperatures.

摘要翻译： 本发明的目的是具有新形态特征的氧化铈。 本发明还涉及获得所述氧化物的方法之一。 本发明的方法的特征在于，通过使用铈盐溶液进行碱沉淀制备的氢氧化铈在煅烧操作之前进行溶剂热处理。 获得的氧化铈在高温下具有大的比表面积。

公开(公告)号：US4606847A

公开(公告)日：1986-08-19

申请号：US791149

申请日：1985-10-24

申请人： James L. Woodhead

发明人： James L. Woodhead

IPC分类号： B01J13/00 ,  B23F19/02 ,  C01F17/00

CPC分类号： C01F17/0075 ,  B01J13/0047 ,  C01F17/00 ,  C01F17/0018 ,  C01F17/0043 ,  C01F17/0068 ,  C01P2006/22

摘要： The present invention relates to compounds and more particularly to cerium compounds and cerium compounds in association with other elements.The invention provides a process for the preparation of a dispersible product containing a cerium compound which comprises heating a cerium (IV) oxide hydrate in the presence of a salt to cause deaggregation of aggregated crystallites in the cerium (IV) oxide hydrate and produce a dispersible product containing a cerium compound.The salt may be chosen such that a selected chemical element is present in the dispersible product.

摘要翻译： 本发明涉及化合物，更具体地涉及与其它元素相关的铈化合物和铈化合物。 本发明提供了一种制备含铈化合物的可分散产物的方法，该方法包括在盐存在下加热氧化铈（IV）水合物以引起氧化铈（IV）水合物中聚集的微晶的解聚，并产生可分散的 含有铈化合物的产品。 可以选择盐，使得所选择的化学元素存在于可分散产物中。