RECOVERY OF PRECIOUS METALS AND COPPER FROM COPPER/GOLD ORESUSING RESIN TECHNOLOGY

摘要

A process for the selective recovery of precious metals from a medium loaded with precious metals and base metals. The selective recovery of precious metals is achieved by exposing the medium to an aqueous solution containing a complex of formula MX2-, wherein M is a metal of group IB or IIB of the Periodic Table of Elements, and X is a monovalent radical. A second inventio n relates to the removal of copper from the medium whereby elution of copper i s achieved by exposing the medium to an aqueous solution capable of oxidising Cu(I) to Cu(II) whilst not eluting precious metals from the medium.