The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 10, 2019

Filed:

Feb. 11, 2016
Applicant:

Alcoa Usa Corp., Pittsburgh, PA (US);

Inventors:

David H. DeYoung, Export, PA (US);

Xinghua Liu, Murrysville, PA (US);

Brent L. Mydland, Gibsonia, PA (US);

James Wiswall, Pittsburgh, PA (US);

Assignee:

ALCOA USA CORP., Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C 3/24 (2006.01); C25C 3/18 (2006.01); C25C 3/12 (2006.01); C25C 3/14 (2006.01); C25C 7/00 (2006.01); C25C 7/02 (2006.01); B22D 21/00 (2006.01); C25C 3/08 (2006.01);
U.S. Cl.
CPC ...
C25C 3/24 (2013.01); B22D 21/007 (2013.01); C25C 3/08 (2013.01); C25C 3/12 (2013.01); C25C 3/125 (2013.01); C25C 3/14 (2013.01); C25C 3/18 (2013.01); C25C 7/005 (2013.01); C25C 7/025 (2013.01);
Abstract

The application is directed towards methods for purifying an aluminum feedstock material. A method provides: (a) feeding an aluminum feedstock into a cell (b) directing an electric current into an anode through an electrolyte and into a cathode, wherein the anode comprises an elongate vertical anode, and wherein the cathode comprises an elongate vertical cathode, wherein the anode and cathode are configured to extend into the electrolyte zone, such that within the electrolyte zone the anode and cathode are configured with an anode-cathode overlap and an anode-cathode distance; and producing some purified aluminum product from the aluminum feedstock.


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