C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 19/20 (2006.01) B01D 11/00 (2006.01) B01D 11/02 (2006.01) C22B 1/02 (2006.01) C22B 3/14 (2006.01) C22B 3/26 (2006.01) C22B 19/02 (2006.01) C22B 19/32 (2006.01)
Patent
CA 2756433
A method for leaching zinc from a zinc-bearing carbonate ore, the method comprising the steps of: subjecting the zinc-bearing carbonate ore to elevated temperatures of between about 300°C and about 900°C thereby producing a roasted ore; subjecting the roasted ore to an aqueous acid or alkali leach thereby producing an aqueous zinc solution; and subjecting the aqueous zinc solution to a zinc recovery step.
L'invention porte sur un procédé de lixiviation de zinc à partir d'un minerai de carbonate zincifère, le procédé comprenant les étapes consistant à : soumettre le minerai de carbonate zincifère à des températures élevées comprises entre environ 300°C et environ 900°C ce qui produit de cette manière un minerai grillé ; soumettre le minerai grillé à une lixiviation aqueuse acide ou alcaline, ce qui produit de cette manière une solution aqueuse de zinc ; et soumettre la solution aqueuse de zinc à une étape de récupération de zinc.
Johnston Garry Mervyn
Sutcliffe Matthew Leslie
Welham Nicholas James
Metaleach Limited
Ridout & Maybee Llp
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