Application of phosphates of aluminum to carbonaceous components of aluminum production cells
US5534130A · kind A · utility
23Cited by
20References
20Claims
0Family size
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Key dates
| Filing date | Jun 7, 1994 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Carbon-containing components of cells for the production of aluminum by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte are protected from attack by liquid and/or gaseous components of the electrolyte in the form of elements, ions or compounds, by a treatment composition which consists essentially of a solution of one or more phosphates of aluminum. The treatment composition may alternatively consist essentially of one or more phosphates of aluminum, and one on more colloidal carriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.