公开(公告)号：US06364931B1

公开(公告)日：2002-04-02

申请号：US09508976

申请日：2000-06-05

申请人： David John Robinson ,  Natalie Jean Shackleton

发明人： David John Robinson ,  Natalie Jean Shackleton

IPC分类号： C22B324

CPC分类号： C22B11/04 ,  C22B3/24 ,  Y02P10/234 ,  Y10S423/14

摘要： A hydrochloric acid solution containing platinum group metals has its acidity adjusted to 5.5 to 6.5M HCl and its redox potential adjusted to at least 500 mV, before being treated by chromatography. Particularly clean separation of at least Pt and Pd can be obtained, and recovered Pt and Pd of at least 99.99% purity may be obtained by following conventional precipitation processes.

摘要翻译： 含有铂族金属的盐酸溶液在通过色谱法处理之前将其酸度调节至5.5至6.5M HCl，并将其氧化还原电位调节至至少500mV。 可以获得至少Pt和Pd的特别清洁的分离，并且可以通过以下常规沉淀方法获得至少99.99％纯度的回收的Pt和Pd。