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.
Patent No.:
Date of Patent:
Aug. 06, 2002
Filed:
Jul. 13, 2000
Applicant:
Inventor:
Kathleen M. Tomaswick, Natrona Heights, PA (US);
Assignee:
Alcoa Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C 3/08 ; C25C 3/06 ;
U.S. Cl.
CPC ...
C25C 3/08 ; C25C 3/06 ;
Abstract
A process for electrolyzing Al O to produce aluminum in a low temperature bath containing AlCl and an alkali metal chloride. The bath is maintained at a temperature of less than about 300 ° C. Solid aluminum is produced at the cathode in a frozen layer of the alkali metal chloride.