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Light metal production

United States Patent

April 19, 2016
View the Complete Patent at the US Patent & Trademark Office
An electrochemical process for the production of light metals, particularly aluminum. Such a process involves contacting a light metal source material with an inorganic acid to form a solution containing the light metal ions in high concentration. The solution is fed to an electrochemical reactor assembly having an anode side containing an anode and a cathode side containing a cathode, with anode side and the cathode side separated by a bipolar membrane, with the solution being fed to the anode side. Light metal ions are electrochemically transferred through the bipolar membrane to the cathode side. The process further involves reducing the light metal ions to light metal powder. An associated processing system is also provided.
Fan; Qinbai (Chicago, IL)
Gas Technology Institute (Des Plaines, IL)
14/ 168,332
January 30, 2014
This invention was made with government support under grant DE-AR000049 awarded by the Department of Energy. The government has certain rights in the invention.