Use of cupric chloride etchant solution in a solvent extraction electrowinning copper refinery

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United States of America Patent

PATENT NO 6375713
SERIAL NO

09734706

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Abstract

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Process for improving recovery of copper and reducing raw material costs, from a copper-containing source by SX-EW. The process comprises the steps of mixing an acidic copper-containing PLS obtained by leaching a copper-containing source with an acidic leachant, usually sulfuric acid, with an aqueous acidic cupric chloride solution spent printed wire board etchant, to produce an acidic cupric chloride/copper sulfate-containing mixture. This mixture is subjected to SX-EW to recover the copper as copper cathode.

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Patent Owner(s)

Patent OwnerAddress
PHIBROTECH INC45 HIRST ROAD BRIARCLIFF MANOR NY 10510

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edelstein, Philip Briarcliff Manor, NY 2 6

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