Continental Oil Company

John C Stauter

Gerald F Pace

Gary R Harris

Calvin N Armstrong

Copper ore is leached by static leaching methods, and the effluent pregnant leach liquor is divided into portions forming a high-concentration pregnant leach liquor and a recycleable leach liquor.

Static leaching copper ore

An improved process and apparatus for electrolyzing ions in a liquid electrolyte wherein the electrolyte is covered by an immiscible liquid of low conductivity and whereby the entrainment of said immiscible liquid in said electrolyte is prevented.

Electrolysis process and apparatus

An improved process and apparatus for electrolysis of a high purity metal from an aqueous pregnant liquor acid electrolyte at high efficiency and high current density in the presence of impurities. In one embodiment the electrolysis cell employed in such process is provided with a fluid cover.

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Arlington Heights, IL, United States of America

John C Stauter