C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 34/34 (2006.01) C01G 39/02 (2006.01) C22B 3/06 (2006.01) C22B 3/20 (2006.01) C22B 15/00 (2006.01)
Patent
CA 2468855
A method of treatment or purification of a molybdenum concentrate also containing copper, comprises the step of subjecting the molybdenum concentrate to pressure oxidation in the presence of oxygen and a feed solution containing copper (e.g. CuSO4) and halide (e.g. CuCl2) to produce a pressure oxidation solution containing copper and a solid residue containing molybdenum. The pressure oxidation solution may be combined with feed solution containing sulfuric acid to a second pressure oxidation in which a copper concentrate is treated for the recovery of copper therefrom.
L'invention concerne un procédé pour traiter ou purifier un concentré de molybdène contenant également du cuivre, selon lequel on soumet le concentré de molybdène à une oxydation sous pression, en présence d'oxygène et d'une solution de dosage contenant du cuivre (par ex. CuSO¿4?) et un halogénure (par ex. CuCl¿2?), pour produire une solution d'oxydation sous pression contenant du cuivre et un résidu solide contenant du molybdène. Cette solution d'oxydation sous pression peut être combinée à la solution de dosage pour une seconde oxydation sous pression, dans laquelle un concentré de cuivre est traité pour en récupérer le cuivre.
Borden Ladner Gervais Llp
Cesl Limited
Cominco Engineering Services Ltd.
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