Production of lead monoxide from lead sulfate with acetic acid

C - Chemistry – Metallurgy – 01 – G

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23/265, 400/9248

C01G 21/06 (2006.01) H01M 10/54 (2006.01)

Patent

CA 1125477

PRODUCTION OF LEAD MONOXIDE FROM LEAD SULFATE WITH ACETIC ACID ABSTRACT: An efficient and inexpensive method for producing lead monoxide from lead sulfate bearing materials such as recycled battery mud is provided comprising: (a) reacting said material with an ammonium carbonate solution to convert lead sulfate to lead carbonate; (b) decomposing the lead carbonate to form impure lead monoxide; (c) reacting the impure lead monoxide with acetic acid to form a lead acetate solution; (d) contacting the lead acetate solution with carbon dioxide to produce insoluble lead carbonate; and (e) decomposing the lead carbonate to form lead monoxide.

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