Process for manufacturing high purity metal chlorides
US4695436A · kind A · utility
9Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1985 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A mixture of an aluminous ore and a carbon source is dried and calcined in the presence of a sulfur-containing compound. The mixture is then chlorinated to produce crude metal chlorides. Aluminum chloride is condensed and separated from the remaining metal chlorides, combined with sulfur and aluminum powder, and sublimated and desublimated so as to produce substantially pure aluminum chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.