Importance

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Abstract

A method for recovering valuable metal elements from a copper-containing metallic material includes steps of: (a) immersing an anode and the copper-containing metallic material serving as a cathode into an electrolyte solution having one of an acidic pH and an alkaline pH; and (b) providing a predetermined voltage to the anode and the cathode such that an electrolysis process conducted under the predetermined voltage on the cathode forms a gaseous film surrounding the cathode, and then the gaseous film is broken down to permit generation of a plasma in the electrolyte solution so as to obtain a solid copper metal or a solid copper oxide that precipitates from the electrolyte solution, and ionic impurities that dissolve in the electrolyte solution.

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First Claim