The invention relates to a process for the separation and recovery of
non-ferrous metals from zinc-bearing residues, in particular from
residues produced by the zinc manufacturing industry. The process allows
for the valorisation of metal values in a Zn-, Fe- and Pb-bearing
residue, and comprises the steps of: subjecting the residue to a direct
reduction step, thereby producing a metallic Fe-bearing phase and Zn- and
Pb-bearing first fumes; extracting the Zn- and Pb-bearing first fumes and
valorising Zn and Pb; subjecting the metallic Fe-bearing phase to an
oxidising smelting step, thereby producing an Fe-bearing slag and second
metals-bearing fumes; extracting the second metals-bearing fumes and
valorising at least part of their metallic content. The main advantage of
this process is that an environmentally acceptable output for Fe is
obtained.