Chloride melt process for the separation and recovery of zinc.

摘要

Process for the production of ZnCl₂ from a Zn bearing primary and/or secondary material comprising the steps of reacting the Zn bearing material with a chlorinating agent such as Cl₂ to convert metals into chlorides and vaporising the volatile components of the reaction product at a temperature between the melting point of said reaction product and the boiling point of ZnCl₂, thereby recovering a Zn rich chlorinated melt, and thereafter distilling ZnCl₂ from this Zn rich chlorinated melt, thereby recovering purified ZnCl₂ and a Zn-depleted chlorinated melt.