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:
Mar. 17, 2009
Filed:
Mar. 09, 2006
Jan Arthur Aune, Ytre Enebakk, NO;
Georg Frommeyer, Ekrath, DE;
Kai Johansen, Kristiansand, NO;
Donald R. Sadoway, Watertown, MA (US);
Gro Soleng, Olso, NO;
Elke William Thisted, Kristiansand, NO;
Jan Arthur Aune, Ytre Enebakk, NO;
Georg Frommeyer, Ekrath, DE;
Kai Johansen, Kristiansand, NO;
Donald R. Sadoway, Watertown, MA (US);
Gro Soleng, Olso, NO;
Elke William Thisted, Kristiansand, NO;
Elkem AS, Oslo, NO;
Abstract
The present invention relates to a dimensionally stable oxygen-evolving anode for use in an electrolytic cell for the production of aluminium. The anode comprises of a container made from an alloy comprising aluminium and at least one metal more noble than aluminium; a fluid bath in the bottom of the container having the ability to dissolve aluminium, said fluid having a density that is higher than the density of molten aluminium at the operating temperature of the cell, a pool of molten aluminium floating on top of the fluid bath in the bottom of the container; a refractory layer arranged on the inner sidewalls of the container at least in the area of the pool of molten aluminium, said refractory layer protecting the molten aluminium from contacting the inner sidewalls of the container.