Production of metallic lead

Details Production of metallic lead Production of metallic lead

C - Chemistry, Metallurgy

25

C

204/47

C25C 1/18 (2006.01) C22B 13/00 (2006.01) C25C 3/34 (2006.01)

Patent

CA 1106309

ABSTRACT The production of metallic lead from lead bearing sources such as lead sulfide concentrates may be improved by subjecting the lead sul- fide concentrates to a prehalogenation activation treatment at a tempera- ture in the range of from about 300° C. to about 600 °C. before subjecting said concentrate to the halogenation step which is effected at a tempera- ture in the range of from about 80° to about 120° C. followed by leaching, filtering, crystallization and electrolysis.

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