Electrowinning copper in hydrometallurgical process...

Details Electrowinning copper in hydrometallurgical process... Electrowinning copper in hydrometallurgical process...

C - Chemistry, Metallurgy

25

C

204/69.5

C25C 1/12 (2006.01) C22B 15/00 (2006.01) C25C 1/06 (2006.01)

Patent

CA 1246489

ELECTROWINNING COPPER IN HYDROMETALLURGICAL PROCESS INCLUDING A MEMBRANE CELL ABSTRACT OF THE DISCLOSURE This invention is directed to a novel hydro- metallurgical process for the recovery of copper and optionally, iron, from sulfide copper concentrates con- taining common copper sulfides such as chalcopyrite, bornite and chalcocite. A process for the recovery of copper utilizing electrowinning cells comprising leach- ing copper concentrate in first and second stages, the leaching in the first stage being done with a partially reduced leach liquor obtained from the second stage; separating the concentrate obtained from the first stage in a solid-liquid separator, the partially leached solids being directed to the second leaching stage, the liquid from the separator being directed to the catho- lyte compartment of an electrowinning cell; leaching the solids in the second leaching stage with regenerated leaching liquid obtained from the anolyte compartment of the electrowinning cell, the anolyte and catholyte com- partments being separated by a membrane which is impermeable to copper and iron ions but is permeable to hydrogen ions; separating the concentrate obtained from the second stage in a second solid-liquid separator and filtering and washing the solids residue from the separator.

435627

Affiliated with

Also associated with

Rating

Electrowinning copper in hydrometallurgical process... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrowinning copper in hydrometallurgical process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrowinning copper in hydrometallurgical process... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1196954