Improved bacterial oxidation of sulphide ores and concentrates

Details Improved bacterial oxidation of sulphide ores and concentrates Improved bacterial oxidation of sulphide ores and concentrates

C - Chemistry, Metallurgy

22

B

C22B 3/18 (2006.01) C12N 1/20 (2006.01)

Patent

CA 2549656

A bacterial culture for use in the bacterial oxidation of sulphide ores and concentrates, the bacterial culture identified by AGAL deposit Accession No. NM99/07541 or having been adapted therefrom, the bacterial culture further containing one or more strains of both Sulfobacillus and Thermoplasma. The present invention further provides a process for the bacterial oxidation of sulphide ores and concentrates characterised in that the ore or concentrate is leached using such a bacterial culture.

La présente invention concerne une culture bactérienne conçue pour être utilisée pour l'oxydation bactérienne de minerais et de concentrés sulfurés, ladite culture bactérienne étant identifiée par le numéro NM99/07541 d'entrée de dépôt AGAL ou ayant été conçue à partir du composé correspondant, ladite culture bactérienne contenant en outre une ou plusieurs souches de Sulfobacillus et Thermoplasma. La présente invention se rapporte en outre à un procédé d'oxydation bactérienne des minerais et concentrés sulfurés, qui se caractérise en ce que le minerai ou le concentré est soumis à une lixiviation au moyen d'une telle culture bactérienne.

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