Method for extracting copper from leach solutions at...

Details Method for extracting copper from leach solutions at... Method for extracting copper from leach solutions at...

C - Chemistry, Metallurgy

22

B

C22B 15/00 (2006.01)

Patent

CA 2525834

Copper is extracted from aqueous copper leach solutions wherein the leach solutions have a temperature of at least 30°C. The method comprises contacting the aqueous solution with an extraction reagent of the formula (I) : wherein R is a linear or branched C10-18 alkyl group and R1 is H or CH3. These extraction reagents do not undergo any significant degradation normally encountered with the use of conventional reagents in leach solutions having temperatures equal to or greater than 30°C.

Du cuivre est extrait de solutions de lixivation de cuivre aqueuses, ces solutions de lixivation présentant une température d'au moins 30 DEG C. Le procédé selon l'invention consiste à mettre en contact la solution aqueuse avec un réactif d'extraction représenté par la formule (I) dans laquelle R est un groupe alkyle C10-18 linéaire ou ramifié et R1 est H ou CH3. Ces réactifs d'extraction ne subissent aucune dégradation importante qui se produit normalement avec l'utilisation de réactifs ordinaires dans les solutions de lixivation présentant des températures supérieures ou égales à 30 DEG C.

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