Method for the hydrometallurgical treatment of sulfide...

Details Method for the hydrometallurgical treatment of sulfide... Method for the hydrometallurgical treatment of sulfide...

C - Chemistry, Metallurgy

22

B

C22B 15/00 (2006.01) C22B 13/00 (2006.01) C22B 19/00 (2006.01) C22B 23/00 (2006.01)

Patent

CA 2591887

The invention relates to a method, by means of which the valuable metals contained in a sulphidic, multicomponent concentrate are recovered using hydrometallurgical treatment. One constituent of the concentrate is copper sulphide, which is leached using an alkali chloride - copper (II) chloride solution. The sulphides of other valuable metals, such as zinc, nickel, cobalt and lead are leached before copper leaching and each is recovered as a separate product before copper recovery.

L'invention concerne une méthode permettant d'extraire les métaux précieux contenus dans un concentrat sulfurique multicomposant, à l'aide d'un traitement hydrométallurgique. Un constituant de ce concentrat est du sulfure de cuivre, qui est lixivié à l'aide d'une solution de chlorure de cuivre (II)/chlorure alcalin. Les sulfures d'autres métaux précieux, notamment le zinc, le nickel, le cobalt et le plomb sont lixiviés avant la lixiviation au cuivre, et chaque métal est extrait en tant que produit séparé, avant l'extraction du cuivre.

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