C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/340
C22B 13/00 (2006.01) C22B 3/10 (2006.01) C22B 13/06 (2006.01) C22B 19/02 (2006.01)
Patent
CA 1219134
ABSTRACT The invention is concerned with a method for the slective dissolution of lead in relation to zinc that is present as a sulphurized compound. The method comprises treating said compound to lixiviation with a solution containing ferrous chloride, while bubbling a gas that contains oxygen through the lixiviating solution.
435189
Gowling Lafleur Henderson Llp
Societe Miniere Et Metallurgique de Penarroya
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