C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 15/00 (2006.01) C22B 1/00 (2006.01) C22B 3/04 (2006.01)
Patent
CA 2417417
The present invention relates generally to a process for recovering copper and other metal values from metal-containing materials using controlled, super-fine grinding reducing the particle size to P98 less than about 25 microns and medium temperature (140-180°C) pressure leaching. Processes embodying aspects of the present invention may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, rhenium, zinc, uranium, and platinum group metals, from metal-bearing materials, and find particular utility in connection with the extraction of copper from copper sulfide ores and concentrates.
L'invention concerne de manière générale un procédé permettant de récupérer du cuivre et d'autres métaux précieux dans des matériaux contenant des métaux, par broyage superfin et lixiviation sous pression à température moyenne dirigés. Des aspects propres au processus de la présente invention peuvent s'avérer avantageux pour récupérer une variété de métaux tels que le cuivre, l'or, l'argent, le nickel, le cobalt, le molybdène, le rhénium, le zinc, l'uranium et le platine, dans des matériaux à base de métaux et s'utilisent tout spécifiquement en relation avec l'extraction de cuivre dans des minerais et des concentrés de sulfure de cuivre.
Baughman David R.
Brewer Robert E.
Hazen Wayne W.
Mardsen John O.
Robertson Joanna M.
Freeport-Mcmoran Corporation
Gowling Lafleur Henderson Llp
Phelps Dodge Corporation
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