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1. 发明授权

US4196076A Separation of cobalt and nickel by solvent extraction 失效
标题翻译：通过溶剂萃取分离钴和镍
公开(公告)号：US4196076A
公开(公告)日：1980-04-01
申请号：US906279
申请日：1978-05-15
申请人： Akihiro Fujimoto , Isami Miura , Kazuo Noguchi
发明人： Akihiro Fujimoto , Isami Miura , Kazuo Noguchi
IPC分类号： C22B23/00 , B01D11/04 , C01G53/00 , C02F1/26 , C22B3/38 , B01D11/00
CPC分类号： C22B3/0067 , C01G53/003 , C22B3/0087 , Y02P10/234
摘要： This invention concerns the method of separation of Co from Ni in an aqueous solution containing Co from Ni salts, with an organic solvent containing 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester and/or 3,5,5-trimethylhexyl phosphonic acid mono-3,5,5-trimethylhexyl ester and/or isodecyl phosphonic acid monoisodecyl ester as an effective extractant for the separation of Co from Ni, the method which requires fewer stages in the solvent extraction equipment and less organic solvent than the conventional method, and which can very effectively separate Co from Ni in high purity and in high yield. The continuous separation of Co from Ni according to this invention enables the separation of Co with purity above 99% in a yield above 99% and Ni with purity above 99% in a yield above 99%.
摘要翻译：本发明涉及从含有Co的Co水溶液中分离Co与Ni的方法，其中有机溶剂含有2-乙基己基膦酸单-2-乙基己基酯和/或3,5,5-三甲基己基膦酸单 -3,5,5-三甲基己基酯和/或异癸基膦酸单十二烷基酯作为Co与Ni分离的有效提取剂，其方法与常规方法相比，溶剂萃取设备中的阶段少，有机溶剂少，其可以以高纯度和高产率非常有效地将Co与Ni分离。根据本发明，Co与Ni的连续分离使得能够以高于99％的产率将纯度高于99％的Co和99％以上的纯度分离出来，产率高于99％。

2. 再颁专利

USRE32694E Separation of cobalt and nickel by solvent extraction 失效
标题翻译：通过溶剂萃取分离钴和镍
公开(公告)号：USRE32694E
公开(公告)日：1988-06-14
申请号：US363407
申请日：1982-03-30
申请人： Akihiro Fujimoto , Isami Miura , Kazuo Noguchi
发明人： Akihiro Fujimoto , Isami Miura , Kazuo Noguchi
IPC分类号： C22B23/00 , B01D11/04 , C01G53/00 , C02F1/26 , C22B3/38
CPC分类号： C22B3/0067 , C01G53/003 , C22B3/0087 , Y02P10/234
摘要： This invention concerns the method of separation of Co from Ni in an aqueous solution containing Co from Ni salts, with an organic solvent containing 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester and/or 3,5,5-trimethylhexyl phosphonic acid mono-3,5,5-trimethylhexyl ester and/or isodecyl phosphonic acid monoisodecyl ester as an effective extractant for the separation of Co from Ni, the method which requires fewer stages in the solvent extraction equipment and less organic solvent than the conventional method, and which can very effectively separate Co from Ni in high purity and in high yield. The continuous separation of Co from Ni according to this invention enables the separation of Co with purity above 99% in a yield above 99% and Ni with purity above 99% in a yield above 99%.

3. 发明授权

US4582691A Process for separating Fe(III) from an aqueous solution of metallic salts and a process for separating Fe(III) from an organic extraction solvent 失效
标题翻译：从金属盐水溶液中分离Fe（III）的方法和从有机萃取溶剂中分离Fe（III）的方法
公开(公告)号：US4582691A
公开(公告)日：1986-04-15
申请号：US643714
申请日：1984-08-24
申请人： Akihiro Fujimoto , Isami Miura , Tadanori Matsumura
发明人： Akihiro Fujimoto , Isami Miura , Tadanori Matsumura
IPC分类号： C22B3/26 , C01G49/00 , C22B3/00 , C22B3/38 , B01D11/00
CPC分类号： C22B3/0066 , C01G49/0009 , Y02P10/234 , Y10S423/14
摘要： A process for separating Fe(III) from an aqueous solution of metallic salts containing at least Fe(III), comprising: (1) bringing said aqueous solution into contact with an organic extraction solvent containing, as an extractant, an organic phosphinic acid represented by the following general formula to thereby extract at least Fe(III) from the aqueous phase and transfer it into the organic phase; ##STR1## wherein R.sub.1 and R.sub.2 are alkyls, respectively, having carbon number in the range of 1 to 20; the sum of carbon numbers for R.sub.1 and R.sub.2 is in the range of 12 to 36; and R.sub.1 is the same as or different from R.sub.2, and (2) separating the resulting Fe(III) loaded organic phase from said aqueous phase.A process for separating Fe(III) from an organic extraction solvent loaded with at least Fe(III), comprising: (1) bringing said extraction solvent into contact with an aqueous solution of a mineral acid having a low concentration at pH 1.1 or less to thereby strip Fe(III) from the organic phase and transfer it into the aqueous phase, said organic extraction solvent containing an organic phosphinic acid as an extractant represented by the following formula: ##STR2## wherein R.sub.1 and R.sub.2 are alkyls, respectively, having a carbon number in the range of 1 to 20; the sum of the carbon numbers for R.sub.1 and R.sub.2 is in the range of 12 to 36; and R.sub.1 is the same as or different from R.sub.2, and (2) separating the resulting aqueous phase containing Fe(III) from said organic phase.
摘要翻译：一种从至少含有Fe（III）的金属盐的水溶液中分离Fe（III）的方法，包括：（1）使所述水溶液与含有代表性的有机次膦酸的有机萃取溶剂接触，通过以下通式从水相中提取至少Fe（III），并将其转移到有机相中; 其中R 1和R 2分别是碳数在1至20的烷基; R1和R2的碳数之和为12〜36; 并且R 1与R 2相同或不同，和（2）从所述水相中分离得到的Fe（III）负载的有机相。一种从负载至少Fe（III）的有机萃取溶剂中分离Fe（III）的方法，包括：（1）使所述萃取溶剂与pH1.1或更低浓度的低浓度无机酸的水溶液接触从而从有机相中剥离Fe（III）并将其转移到水相中，所述有机萃取溶剂含有由下式表示的萃取剂的有机次膦酸：其中R 1和R 2分别是烷基，其具有碳数在1至20的范围内; R1和R2的碳数之和在12〜36的范围内; 并且R 1与R 2相同或不同，和（2）从所述有机相中分离得到的含有Fe（III）的水相。

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