Back to results
US 4,357,226 AGranted
Anode of dimensionally stable oxide-ceramic individual elements
AssigneeSwiss Aluminium Ltd.
InventorHanspeter Alder
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSwiss Aluminium Ltd.
InventorHanspeter Alder
Estimating the term…
The invention relates to an anode of a fusion electrolysis furnace for the production of aluminum, which anode consists of a plurality of individual oxide-ceramic elements of stable dimensions. The individual elements have linear cross-sectional dimensions of 2-12 cm. on the current exit surface. These elements have a length which corresponds to 2-20 times the value of the mean linear cross-sectional dimension, they are arranged approximately parallel with a mean distance between outer surfaces of 1-20 mm. and are held together mechanically stably at the end facing the current entry with an electrically conductive device situated outside the molten electrolyte. The anode in bundle configuration, in comparison with oxide-ceramic anodes of large format, has a lower corrosion erosion, is simpler to produce ceramically and has a greater stability to temperature changes.
Anode of a fusion electrolysis furnace for the production of aluminum, comprising a plurality of freely suspended individual oxide-ceramic elements of stable dimensions spaced from each other having a current exit surface and a current entry surface, wherein the individual elements have a linear cross-sectional dimension of 2-12 cm. at said current exit surface and have a length which corresponds to 2-20 times the value of the mean linear cross-sectional dimension, wherein said elements are arranged approximately parallel with a mean distance between outer surfaces of 1-20 mm., and are held together mechanically stably at the end facing the current entry with an electrically conductive supporting device situated outside the molten electrolyte wherein said electrically conductive supporting device is a presser plate electrically conductively connected with a supply conductor.
Dependencies are inferred from the claim text.