Diffusion barrier for aluminium electrolysis furnaces
US4536273A · kind A · utility
3Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1983 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Oct 19, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/085
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Diffusion barrier for electrolysis furnaces for the preparation of aluminium by electrolysis of alumina dissolved in a fluoride melt. The diffusion barrier comprises a material which reacts with sodium fluoride to form compounds which are solid at the operation temperature of the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.