Recovering lead from a lead material including lead sulfide

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United States of America Patent

PATENT NO 9322105
APP PUB NO 20140131220A1
SERIAL NO

14076662

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Abstract

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In an example of a method for recovering lead from a lead material including lead sulfide, methane sulfonic acid is selected as a leaching acid for the lead material. The lead material is exposed to a solution including the methane sulfonic acid and i) ferric methane sulfonate or ii) oxygen, which leaches lead from the lead sulfide in the lead material, and generates a liquid leachate including a lead-methane sulfonate salt. The liquid leachate is purified, and lead is recovered from the purified liquid leachate using electrolysis.

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Patent Owner(s)

Patent OwnerAddress
THE UNIVERSITY OF BRITISH COLUMBIAVANCOUVER BRITISH COLUMBIA V6T 1Z3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dreisinger, David Delta, CA 22 191
Fassbender, Stefan Speyer, DE 7 36
Wu, Zhenghui Vancouver, CA 4 22

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