Chemical vapor purification of fluorides
US4652438A · kind A · utility
6Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1985 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Nov 18, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G25/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A chemical vapor purification process for the preparation of high purity metal fluorides using the thermodynamic separation of cations by formation of a gaseous-metal-containing compound, vapor transport, and fluorination is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.