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:
Dec. 30, 2008
Filed:
Aug. 15, 2003
Odd-arne Lorentsen, Porsgrunn, NO;
Ole-jacob Siljan, Skien, NO;
Stein Julsrud, Skien, NO;
Norsk Hydro ASA, Oslo, NO;
Abstract
A method for electrolytic production of aluminium metal from an electrolytic () including aluminium oxide, by performing electrolysis, with at least one inert anode () and at least one cathode () thus forming part of an electorwinning cell. The anode evolves oxygen gas and the cathode has aluminium discharged onto it in the electrolysis process, where the oxygen gas enforces an electrolyte flow pattern. The oxygen gas is directed to flow into anode grooves and is drained away from the interpolar room, thereby establishing an electrolyte flow pattern between the electrodes () and () and between over the anodes (). The invention also concerns and anode assembly and an electrowinning cell.