| 摘要 |
The invention is directed to a process and apparatus for metal refining, in particular for refining a mixture of conductive particles, such as heavy non- ferrous particles. In accordance with the invention a feed containing a mixture of conductive particles is fed to a dissolution unit, wherein the less noble metal is separated from at least one metal of interest in the presence of one or more acids or complexing agents, thus producing a stream comprising at least one concentrated less noble metal and producing a conductive stream containing at least one metal of interest. Said conductive stream is then fed to a refining unit, wherein said conductive stream is separated in a stream of concentrated metal(s) of interest and a stream of concentrated conductive particles. |
