公开(公告)号：US06579504B1

公开(公告)日：2003-06-17

申请号：US09700595

申请日：2001-01-12

申请人： Keith Stuart Liddell

发明人： Keith Stuart Liddell

IPC分类号： C22B1100

CPC分类号： C22B11/06 ,  C22B11/04

摘要： A hydrometallurgical treatment process for extracting platinum group metals from a flotation concentrate in which the invention revolves around obviating the matte smelting and granulating process. Instead the concentrate is submitted to pressure leaching, oxidative or reductive roasting and final recovery by means of ion exchange adsorption. Roasting is applied in order to convert the platinum group metals to a form that dissolves in chlorine/HCL and a chlorine/HCL leach that renders the platinum group metals in solution.

摘要翻译： 一种用于从浮选精矿中提取铂族金属的湿法冶金处理方法，其中本发明围绕消除无光泽的熔炼和造粒过程。 相反，浓缩物通过离子交换吸附进行压力浸出，氧化还原焙烧和最终回收。 施加焙烧以将铂族金属转化成溶解在氯/氯化物中的形式和使溶液中的铂族金属成为氯/氯化物的浸出物。