Cobalt leaching process
OwnerPatrick R. Taylor, Jonathan P. Vanderloopinventors
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Abstract
Cobalt is separated from a cobalt arsenic sulfide ore or concentrate by means of leaching at substantially atmospheric pressure with a ferric sulfate-sulfuric acid solution.
Claims13
The process for separating cobalt from cobalt arsenic sulfide-containing ore or concentrate which comprises contacting said ore or concentrate with an aqueous solution consisting essentially of about 10 to 300 grams per liter of sulfuric acid and at least about 10 grams per liter of ferric sulfate, at a temperature of from about ambient to the boiling temperature of said aqueous solution and at substantially atmospheric pressure, and thereby solubilizing and extracting said cobalt.
The process for separating cobalt from cobaltite which comprises extracting said cobaltite with an aqueous solution consisting essentially of about 100 to 150 grams of sulfuric acid and about 100 to 200 grams of ferric sulfate per liter at a temperature of about 85.degree.-100.degree. C., in which air or oxygen is bubbled through said aqueous solution with agitation, thereby solubilizing and extracting the major portion of said cobalt in said cobaltite.
Dependencies are inferred from the claim text.