Patent · US Active

Anode for electrolysis of aluminum

US7504010B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

ELKEM AS · NO

Inventors

Jan A. Aune · Ski, NO
Georg Frommeyer · Erkrath, DE
Kai Johansen · Kristiansand, NO
Donald R. Sadoway · Belmont, US
Gro Soleng · Oslo, NO
Elke William Thisted · Kristiansand, NO

Key dates

Filing date	Mar 9, 2006
Grant date	Mar 17, 2009
Priority date	—
Expiry date	Aug 17, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25C3/06
WIPO fieldSurface technology, coating
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.