Process for direct electrowinning of copper

Details Process for direct electrowinning of copper Process for direct electrowinning of copper

C - Chemistry, Metallurgy

25

C

C25C 1/12 (2006.01) C22B 3/04 (2006.01) C22B 3/44 (2006.01) C22B 15/00 (2006.01)

Patent

CA 2454821

A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent extraction techniques or apparatus. A process for recovering copper from a copper- containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper- bearing material, leaching the feed stream to yield a copper-containing. solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution, without subjecting the copper-containing solution to solvent extraction.

L'invention concerne un système et un procédé pour extraire du cuivre d'un minerai ou d'un concentré contenant du cuivre, ou d'un autre matériau contenant du cuivre, et pour produire du cuivre en cathodes de haute qualité à partir d'une solution de lixiviation, sans appliquer de techniques et utiliser d'appareils d'extraction par solvant. Un procédé d'extraction de cuivre d'un minerai en contenant comprend généralement les opérations suivantes : préparer un flux d'alimentation comportant le minerai, le concentré ou l'autre matériau fragmenté contenant le cuivre, lixivier le flux d'alimentation pour obtenir une solution contenant du cuivre, soumettre cette solution contenant du cuivre à une ou plusieurs opérations de traitement physique ou chimique, extraire le cuivre par électrolyse directement de la solution le contenant, sans soumettre celle-ci à l'extraction par solvant.

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