PROCESS AND APPARATUS FOR RECOVERY OF CYANIDE AND METALS

摘要

Disclosed is a process for recovering components from a liquor containing a complex or compound electrochemically dissociable to form a cation (C) and an oxidisable species for recovery including: (a) delivering the liquor containing said complex or compound to an electrochemical cell having an anode compartment containing an anode and a cathode compartment containing a cathode, the compartments being separated by a boundary layer or porous diaphragm; (b) electrochemically dissociating the compound or complex; (c) directing a controlled portion of the liquor through the anode compartment and a controlled portion of the liquor through the cathode compartment; wherein said oxidisable species is recovered from a catholyte. The process allows for recovery, for example, of cyanide from weakly acid dissociable (WAD) metal cyanide complexes such as copper WAD complexes.