Purification method of carbon fluorides
US4967025A · kind A · utility
3Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Jul 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A purification method of carbon fluorides by removing non-bonding fluorine from carbon fluorides. The removing treatment is carried out by contacting gases with the non-bonding fluorine. Such gases are HCl, SO.sub.2, NO.sub.2, H.sub.2, steam and a mixed gas thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.