Abstract

A process for recovering a metal in the form of a metal halide from a metal-containing source is described, the process comprising the steps of:- (i) forming a solid metal halide containing product by contacting the metal-containing source with a gaseous halide in an oxidising environment and at a temperature below the vaporisation temperature of the metal halide of interest; (ii) heating the metal halide containing product formed in step (i) to a temperature at or above the vaporisation temperature of the metal halide to form a gaseous metal halide containing product; and (iii) condensing the gaseous metal halide containing product of step (ii) to recover the metal halide of interest.

IPC Classes  ?

• C22B 1/08 - Chloridising roasting
• C01B 9/00 - General methods of preparing halides
• C22B 1/10 - Roasting processes in fluidised form
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 9/02 - Refining by liquating, filtering, centrifuging, distilling or supersonic wave action

Abstract

A process for recovering a metal in the form of a metal halide from a metal-containing source is described, the process comprising the steps of:- (i) forming a solid metal halide containing product by contacting the metal-containing source with a gaseous halide in an oxidising environment and at a temperature below the vaporisation temperature of the metal halide of interest; (ii) heating the metal halide containing product formed in step (i) to a temperature at or above the vaporisation temperature of the metal halide to form a gaseous metal halide containing product; and (iii) condensing the gaseous metal halide containing product of step (ii) to recover the metal halide of interest.

IPC Classes  ?

• C22B 1/08 - Chloridising roasting
• C22B 1/10 - Roasting processes in fluidised form
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 7/04 - Working-up slag
• C22B 13/02 - Obtaining lead by dry processes
• C22B 15/00 - Obtaining copper
• C22B 19/28 - Obtaining zinc or zinc oxide from muffle furnace residues
• C22B 19/30 - Obtaining zinc or zinc oxide from metallic residues or scraps