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:
Jan. 06, 1976
Filed:
Jul. 03, 1974
Applicant:
Inventor:
Hanspeter Alder, Flurlingen, CH;
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ;
U.S. Cl.
CPC ...
204 67 ; 204 / ; 204244 ; 204268 ; 2042 / ;
Abstract
A process for the production of metals by the electrolysis of metal compounds dissolved in a molten electrolyte, in particular for the production of aluminum from aluminum oxide. The electric power is passed through a multi-cell furnace with at least one inconsumable bi-polar electrode, made of electrode materials which are compatible with one another. The anions, in particular, the oxygen ions of the dissolved metal compounds have their charges removed on the surface of the electron conductive ceramic oxide anode and the metal ions, in particular the aluminum ions on the surface of the cathode which is made of another material than that used for the anode surface.