Heap leach agglomeration/percolation extraction aids for...

Details Heap leach agglomeration/percolation extraction aids for... Heap leach agglomeration/percolation extraction aids for...

C - Chemistry, Metallurgy

22

B

C22B 11/08 (2006.01) B03D 1/004 (2006.01) C11D 1/66 (2006.01) C22B 1/00 (2006.01) C22B 1/244 (2006.01) C22B 3/04 (2006.01) C22B 3/16 (2006.01)

Patent

CA 2332243

Methods and compositions for increasing the recovery of precious metals from ore during heap leaching operations are disclosed. The methods add polypropylene glycol and alkylphenol ethoxylate in a paraffin oil solvent with the cyanide lixivant to the ore heap.

L'invention se rapporte à des procédés et à des compositions permettant d'accroître la récupération de métaux précieux à partir de minerai lors d'opérations de lixiviation en tas. Ces procédés consistent à ajouter à un tas de minerai du polypropylène glycol et de l'alkylphénol éthoxylé dans un solvant à base de vaseline liquide conjointement à l'agent de lixiviation à base de cyanure.

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