Improved heap leach

Details Improved heap leach Improved heap leach

C - Chemistry, Metallurgy

22

B

C22B 3/18 (2006.01)

Patent

CA 2517693

An improved heap leach process for the bacterial heap leaching of base metal sulphide ores, the process characterised by the addition of elemental sulphur to the ore, whereby sulphur oxidising bacteria indigenous to, or added to, the ore may oxidise the elemental sulphur and generate heat within the ore heap.

Cette invention concerne un procédé amélioré de lixiviation bactérienne en tas de minerais de sulfure métallique de base. Ce procédé se caractérise par l'adjonction de soufre élémentaire, les bactéries oxydant le soufre qui sont indigènes au minerai ou qui lui sont ajoutées oxydant le soufre élémentaire et produisant de la chaleur à l'intérieur du tas de minerai.

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