Hydrometallurgical process for the recovery of lead

Details Hydrometallurgical process for the recovery of lead Hydrometallurgical process for the recovery of lead

C - Chemistry, Metallurgy

22

B

53/225, 53/340

C22B 13/04 (1980.01)

Patent

CA 1186903

Abstract A process for selectively leaching lead and silver chlorides from a sulfide ore residue in a rapid time which comprises brine leaching the residue under pres- sure at a temperature above the normal boiling point of the solution, preferably above 100°C. Modifications are leaching at the agglomeration temperature of sulfur when present in the residue to agglomerate the sulfur for ease of recovery, and flashing from leach temperature to ambient as a lead chloride crystallization recovery step to produce a large crop of lead chloride crystals per pass.

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