公开(公告)号：US20100095807A1

公开(公告)日：2010-04-22

申请号：US12640077

申请日：2009-12-17

申请人： Hirokazu NARITA ,  Mikiya TANAKA ,  Kazuko MORISAKU

发明人： Hirokazu NARITA ,  Mikiya TANAKA ,  Kazuko MORISAKU

IPC分类号： C22B11/00 ,  C07C237/02

CPC分类号： C22B11/04 ,  C22B3/001 ,  C22B3/0032 ,  C22B3/10 ,  C22B11/06 ,  Y02P10/234

摘要： The present invention provides a novel separation reagent capable of obtaining a high extraction % of rhodium in a chlorine-based acid solution, which has never existed heretofore, and a method for separating and recovering a platinum group metal using the same. An organic phase composed of an amide-containing tertiary amine separation reagent represented by the structural formula shown below is brought into contact with an acid solution containing a platinum group metal, thereby extracting rhodium, platinum and palladium with the organic phase. Among the metals extracted with the organic phase, rhodium is selectively back-extracted with a highly-concentrated hydrochloric acid solution, while palladium and platinum are back-extracted with a highly-concentrated nitric acid solution: wherein at least one of R1, R2 and R3 represents an amide group represented by: R1 to R3 other than the amide group and R4 to R6 represent a group selected from an optionally branched chain hydrocarbon group of 1 to 18 carbon atoms, an alicyclic hydrocarbon group of 1 to 10 carbon atoms, and an aromatic hydrocarbon group of 1 to 14 carbon atoms.

摘要翻译： 本发明提供了一种能够在迄今为止从未存在的氯系酸溶液中获得高提取率的铑的新型分离试剂，以及使用该分离试剂的铂族金属的分离和回收方法。 将由下述结构式表示的含酰胺的叔胺分离试剂构成的有机相与含有铂族金属的酸溶液接触，由有机相萃取铑，铂和钯。 在有机相提取的金属中，用高度浓缩的盐酸溶液选择性地反萃取铑，钯和铂用高浓度硝酸溶液反萃取：其中R1，R2和 R3表示由除酰胺基以外的R1〜R3表示的酰胺基，R4〜R6表示选自1〜18个任意支链的烃基，1〜10个碳原子的脂环族烃基， 1〜14个碳原子的芳香族烃基。

公开(公告)号：US20110113927A1

公开(公告)日：2011-05-19

申请号：US13013490

申请日：2011-01-25

申请人： Hirokazu NARITA ,  Mikiya TANAKA ,  Kazuko MORISAKU

发明人： Hirokazu NARITA ,  Mikiya TANAKA ,  Kazuko MORISAKU

IPC分类号： C22B61/00

CPC分类号： C22B11/04 ,  C22B3/001 ,  C22B3/0032 ,  C22B3/10 ,  C22B11/06 ,  Y02P10/234

摘要： The present invention provides a novel separation reagent capable of obtaining a high extraction % of rhodium in a chlorine-based acid solution, which has never existed heretofore, and a method for separating and recovering a platinum group metal using the same. An organic phase composed of an amide-containing tertiary amine separation reagent represented by the structural formula shown below is brought into contact with an acid solution containing a platinum group metal, thereby extracting rhodium, platinum and palladium with the organic phase. Among the metals extracted with the organic phase, rhodium is selectively back-extracted with a highly-concentrated hydrochloric acid solution, while palladium and platinum are back-extracted with a highly-concentrated nitric acid solution: wherein at least one of R1, R2 and R3 represents an amide group represented by: R1 to R3 other than the amide group and R4 to R6 represent a group selected from an optionally branched chain hydrocarbon group of 1 to 18 carbon atoms, an alicyclic hydrocarbon group of 1 to 10 carbon atoms, and an aromatic hydrocarbon group of 1 to 14 carbon atoms.

摘要翻译： 本发明提供了一种能够在迄今为止从未存在的氯系酸溶液中获得高提取率的铑的新型分离试剂，以及使用该分离试剂的铂族金属的分离和回收方法。 将由下述结构式表示的含酰胺的叔胺分离试剂构成的有机相与含有铂族金属的酸溶液接触，由有机相萃取铑，铂和钯。 在有机相提取的金属中，用高度浓缩的盐酸溶液选择性地反萃取铑，钯和铂用高浓度硝酸溶液反萃取：其中R1，R2和 R3表示由除酰胺基以外的R1〜R3表示的酰胺基，R4〜R6表示选自1〜18个任意支链的烃基，1〜10个碳原子的脂环族烃基， 1〜14个碳原子的芳香族烃基。