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1. 发明授权

EP2540671B1 METHOD FOR EXTRACTING AND SEPARATING LIGHT RARE EARTH ELEMENT 有权
标题翻译：提取和分离轻稀土元素的方法
公开(公告)号：EP2540671B1
公开(公告)日：2018-02-28
申请号：EP12173126.9
申请日：2012-06-22
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Sugahara, Hiroto , Sakaki, Kazuaki , Minowa, Takehisa
IPC分类号： C01F17/00 , C22B3/32 , C22B59/00
CPC分类号： C01F17/0006 , C22B3/0022 , C22B59/00 , Y02P10/234
摘要： A target light rare earth element is separated from an aqueous solution containing two or more of La, Ce, Pr and Nd by contacting an organic phase containing an extractant with the aqueous solution in a counter-current flow multistage mixer-settler while adding an alkaline solution thereto, and contacting the organic phase with an acid aqueous solution for back-extracting the target element. The extractant is a dialkyl diglycol amic acid having formula: R 1 R 2 NCOCH 2 OCH 2 COOH wherein R 1 and R 2 are alkyl, at least one having at least 6 carbon atoms.

2. 发明授权

EP2264196B1 Method for extracting and separating rare earth elements 有权
标题翻译：一种用于稀土元素萃取和分离方法
公开(公告)号：EP2264196B1
公开(公告)日：2015-08-26
申请号：EP10251108.6
申请日：2010-06-17
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Sugahara, Hiroto , Sakaki, Kazuaki , Minowa, Takehisa , Naganawa, Hirochika , Shimojo, Kojiro
IPC分类号： C22B3/00 , C22B59/00
CPC分类号： C22B59/00 , C22B3/0022 , Y02P10/234

3. 发明授权

EP1978115B1 Method for recovering Rhodium 有权
标题翻译：一种回收铑的过程
公开(公告)号：EP1978115B1
公开(公告)日：2015-07-22
申请号：EP08102269.1
申请日：2008-03-04
申请人： JX Nippon Mining & Metals Corporation
发明人： Usui, Shoujirou , Ito, Yoshio
IPC分类号： C22B3/00 , C22B11/00 , C22B11/06
CPC分类号： C22B11/04 , C22B3/0022 , C22B3/165 , C22B3/44 , C22B5/00 , C22B11/042 , C22B11/06 , Y02P10/214 , Y02P10/234

4. 发明公开

EP1978115A1 Method for recovering Rhodium 有权
标题翻译： Verfahren zur Rhodium-Gewinnung
公开(公告)号：EP1978115A1
公开(公告)日：2008-10-08
申请号：EP08102269.1
申请日：2008-03-04
申请人： Nippon Mining & Metals Co., Ltd.
发明人： Usui, Shoujirou c/oSaganoseki Smelting Plant of Nikko Smelting , Ito, Yoshio c/o Saganoseki Smelting Plant Nikko Smelting
IPC分类号： C22B3/00 , C22B11/00 , C22B11/06
CPC分类号： C22B11/04 , C22B3/0022 , C22B3/165 , C22B3/44 , C22B5/00 , C22B11/042 , C22B11/06 , Y02P10/214 , Y02P10/234
摘要： The present invention provides a method for recovering rhodium sponge in high yield from ammonium hexachloro rhodate solution. The method comprises adding formic acid to ammonium hexachloro rhodate solution to reduce the rhodate, recovering reduced rhodium as rhodium black, and calcining the rhodium black under hydrogen atmosphere without water-washing to obtain rhodium sponge.
摘要翻译：本发明提供了一种从六氯罗丹明溶液中以高收率回收铑海绵的方法。该方法包括向六氯环十二烷酸铵溶液中加入甲酸以还原罗丹明，回收铑作为铑黑还原，并在氢气氛下煅烧铑黑，无需水洗，得到铑海绵。

5. 发明公开

EP0572444A1 VERFAHREN UND EINRICHTUNG ZUM ABTRENNEN VON METALL AUS FLUGSTAUB 失效
标题翻译：方法和设备金属从尘土飞扬的分离。
公开(公告)号：EP0572444A1
公开(公告)日：1993-12-08
申请号：EP92904026.0
申请日：1992-02-12
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： AHRENS-BOTZONG, Rudolf
IPC分类号： C22B3 , C22B7
CPC分类号： C22B3/0022 , C22B3/165 , C22B3/42 , C22B7/02 , Y02P10/234
摘要： L'invention concerne un procédé et une installation pour la séparation d'un métal (m) dans des cendres de fumées (f). Il est prévu que les cendres de fumées (f) soient placées dans une solution (L) comportant un chélateur (c) et que les chélates métalliques formés dans la solution (L) à partir du métal soient éliminés de la solution. Dans ce but, on utilise par exemple une pile électrolytique à la cathode de laquelle il se produit un dépôt élémentaire du métal (m). Les poussières de fumées (f) peuvent être des poussières de fumées (f) du gaz brûlé (r) d'une installation de carbonisation lente (40).

6. 发明公开

EP2799400A4 METHOD FOR PRODUCING COBALT SULFATE 有权
标题翻译： PROCESS钴硫酸盐的制备
公开(公告)号：EP2799400A4
公开(公告)日：2015-08-19
申请号：EP12862808
申请日：2012-12-06
申请人： SUMITOMO METAL MINING CO
发明人： NAKAI TAKAYUKI , NAGASE NORIYUKI , HEGURI SHIN-ICHI
IPC分类号： C01G51/10
CPC分类号： C22B23/0484 , C01G51/003 , C01P2006/80 , C22B3/0022 , C22B23/04
摘要： Provided is a method for producing cobalt sulfate, wherein high purity cobalt sulfate is obtained by effectively eliminating impurities in a process for obtaining a cobalt sulfate solution with a high cobalt concentration by solvent extraction using an acidic organic extractant. Disclosed is a method in which, on the occasion of separating an acidic solution containing calcium, magnesium and sodium as impurities from a cobalt chloride solution by solvent extraction, when a diluent is added to the extractant to be used to dilute the extractant to a concentration of 10% to 30% by volume, and preferably 15% to 25% by volume; in Step 1, the operational pH is maintained in the range of 4.0 to 5.0 and the liquid volume ratio of organic phase/liquid phase is maintained in the range of 5.0 to 7.0; in Step 2, the operational pH is maintained in the range of 4.0 to 4.5 and the liquid volume ratio of organic phase/liquid phase is maintained in the range of 5.0 to 10.0; and in Step 3, the pH is maintained in the range of 0.5 to 1.0, the concentration ratios of calcium, magnesium and sodium with respect to the cobalt concentration in the cobalt sulfate solution thus obtainable are reduced to 0.0001, 0.0001, and 0.00005 or less, respectively. (213 words)

7. 发明公开

EP2388344A1 Method for extracting and separating rare earth elements 有权
标题翻译：提取和分离稀土元素的方法
公开(公告)号：EP2388344A1
公开(公告)日：2011-11-23
申请号：EP11178001.1
申请日：2010-06-17
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Sughara, Hiroto , Sakaki, Kazuaki , Minowa, Takehisa , Naganawa, Hirochika , Shimojo, Kojiro
IPC分类号： C22B3/00 , C22B59/00
CPC分类号： C22B59/00 , C22B3/0022 , Y02P10/234
摘要： Solvent extraction from an aqueous phase containing first and second rare earth elements is carried out by contacting an organic phase containing a diglycolamic acid as an extractant and a hydrocarbon or a low-polar alcohol as a solvent, with the aqueous phase below pH 3 for extracting the first rare earth element into the organic phase, back-extracting from the organic phase with an aqueous acid solution for recovering the first rare earth element, and recovering the second rare earth element which has not been extracted into the organic phase and has remained in the aqueous phase.
摘要翻译：从含有第一和第二稀土元素的水相中萃取溶剂是通过使含有二甘醇酸作为萃取剂和烃或低极性醇作为溶剂的有机相与低于pH 3的水相接触以萃取第一种稀土元素进入有机相，用酸性水溶液反萃取有机相以回收第一种稀土元素，以及回收尚未萃取到有机相中并保持在第二种稀土元素中的第二种稀土元素水相。

8. 发明公开

EP2388343A1 Method for extracting and separating rare earth elements 有权
标题翻译： Verfahren zur Extraktion und Trennung von Seltenerdelementen
公开(公告)号：EP2388343A1
公开(公告)日：2011-11-23
申请号：EP11177979.9
申请日：2010-06-17
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Sugahara, Hiroto , Sakaki, Kazuaki , Minowa, Takehisa , Naganawa, Hirochika , Shimojo, Kojiro
IPC分类号： C22B3/00 , C22B59/00
CPC分类号： C22B59/00 , C22B3/0022 , Y02P10/234
摘要： Solvent extraction from an aqueous phase containing first and second rare earth elements is carried out by contacting an organic phase containing a diglycolamic acid as an extractant and a hydrocarbon or a low-polar alcohol as a solvent, with the aqueous phase below pH 3 for extracting the first rare earth element into the organic phase, back-extracting from the organic phase with an aqueous acid solution for recovering the first rare earth element, and recovering the second rare earth element which has not been extracted into the organic phase and has remained in the aqueous phase.
摘要翻译：从含有第一和第二稀土元素的水相中的溶剂萃取通过使含有作为萃取剂的二甘醇酸的有机相和作为溶剂的烃或低极性醇接触，水相低于pH 3进行萃取将第一稀土元素放入有机相中，用酸性水溶液从有机相中回收第一稀土元素，回收未萃取到有机相中并残留的第二稀土元素水相。

9. 发明公开

EP2799400A1 METHOD FOR PRODUCING COBALT SULFATE 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG VON KOBALTSULFAT
公开(公告)号：EP2799400A1
公开(公告)日：2014-11-05
申请号：EP12862808.8
申请日：2012-12-06
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： NAKAI Takayuki , NAGASE Noriyuki , HEGURI Shin-ichi
IPC分类号： C01G51/10
CPC分类号： C22B23/0484 , C01G51/003 , C01P2006/80 , C22B3/0022 , C22B23/04
摘要： Provided is a method for producing cobalt sulfate, wherein high purity cobalt sulfate is obtained by effectively eliminating impurities in a process for obtaining a cobalt sulfate solution with a high cobalt concentration by solvent extraction using an acidic organic extractant. Disclosed is a method in which, on the occasion of separating an acidic solution containing calcium, magnesium and sodium as impurities from a cobalt chloride solution by solvent extraction, when a diluent is added to the extractant to be used to dilute the extractant to a concentration of 10% to 30% by volume, and preferably 15% to 25% by volume; in Step 1, the operational pH is maintained in the range of 4.0 to 5.0 and the liquid volume ratio of organic phase/liquid phase is maintained in the range of 5.0 to 7.0; in Step 2, the operational pH is maintained in the range of 4.0 to 4.5 and the liquid volume ratio of organic phase/liquid phase is maintained in the range of 5.0 to 10.0; and in Step 3, the pH is maintained in the range of 0.5 to 1.0, the concentration ratios of calcium, magnesium and sodium with respect to the cobalt concentration in the cobalt sulfate solution thus obtainable are reduced to 0.0001, 0.0001, and 0.00005 or less, respectively. (213 words)
摘要翻译：本发明提供一种生产硫酸钴的方法，其中通过使用酸性有机萃取剂进行溶剂萃取，在获得钴浓度高的硫酸钴溶液的方法中，通过有效地除去杂质，可以获得高纯度硫酸钴。公开了一种方法，其中在通过溶剂萃取从氯化钴溶液中分离含有钙，镁和钠作为杂质的酸性溶液的情况下，当将稀释剂加入萃取剂中以将萃取剂稀释至浓度为10〜30体积％，优选为15〜25体积％。在步骤1中，操作pH值保持在4.0〜5.0的范围内，有机相/液相的液体体积比维持在5.0〜7.0的范围内; 在步骤2中，操作pH保持在4.0〜4.5的范围内，有机相/液相的液体体积比保持在5.0〜10.0的范围内; 在步骤3中，将pH值保持在0.5〜1.0的范围内，由此可得到的钙，镁和钠相对于所得到的硫酸钴溶液中的钴浓度的浓度比为0.0001,0.0001和0.00005以下，分别。（213个字）

10. 发明公开

EP2540671A1 Method for extracting and separating light rare earth element 有权
标题翻译： Verfahren zur Extraktion und Trennung von leichten Seltenerdelementen
公开(公告)号：EP2540671A1
公开(公告)日：2013-01-02
申请号：EP12173126.9
申请日：2012-06-22
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Sugahara, Hiroto , Sakaki, Kazuaki , Minowa, Takehisa
IPC分类号： C01F17/00 , C22B3/00
CPC分类号： C01F17/0006 , C22B3/0022 , C22B59/00 , Y02P10/234
摘要： A target light rare earth element is separated from an aqueous solution containing two or more of La, Ce, Pr and Nd by contacting an organic phase containing an extractant with the aqueous solution in a counter-current flow multistage mixer-settler while adding an alkaline solution thereto, and contacting the organic phase with an acid aqueous solution for back-extracting the target element. The extractant is a dialkyl diglycol amic acid having formula: R 1 R 2 NCOCH 2 OCH 2 COOH wherein R 1 and R 2 are alkyl, at least one having at least 6 carbon atoms.
摘要翻译：将含有两种或多种La，Ce，Pr和Nd的水溶液中的目标轻稀土元素与含有萃取剂的有机相与逆流多级混合沉淀器中的水溶液接触，同时加入碱并使有机相与酸性水溶液接触，用于反萃取目标元素。提取剂是具有式R 1 R 2 NCOCH 2 OCH 2 COOH的二烷基二甘醇酰胺酸，其中R 1和R 2是烷基，至少有一个具有至少6个碳原子。

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