Method for electrolytic winning of lead

摘要

A method for winning lead from a powdery material consisting of a lead sulfide concentrate or a powdery material containing lead sulfide by passing an electric current across the anode and the cathode of an electrolytic cell partitioned into an anode compartment and a cathode compartment by a diaphragm; which comprises filling the anode compartment with a suspension of the aforesaid powdery material in an aqueous solution of a water-soluble chloride, electrolytically forming the crystalline particles of lead chloride by the anodic oxidation of the suspended particles, separating and refining the crystalline particles of lead chloride from the aqueous solution of the water-soluble chloride, and filling the cathode compartment with a solution of the separated and refined crystalline particles of lead chloride dissolved in an aqueous solution of a water-soluble chloride thereby to deposit lead electrically on the cathode.