Production of lead from ores and concentrates

Details Production of lead from ores and concentrates Production of lead from ores and concentrates

C - Chemistry, Metallurgy

25

C

204/73

C25C 1/18 (2006.01) C25C 5/02 (2006.01)

Patent

CA 1148893

ABSTRACT OF THE DISCLOSURE The invention provides a process for selectively recovering lead from a lead bearing ore or concentrate in an electrolytic cell including at least one anode and one cathode, said process including (1) contacting the ore or concentrate with an electro- lyte containing chloride ions, and (2) maintaining the electrolyte at a temperature ranging up to the boiling point of the electrolyte and at a pH of up to 7 while applying a low anode current density. In this respect the sulphur present in the ore or concentrate is sub- stantially converted to elemental form and lead is taken into solution. - i -

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