Process for producing and purifying 1,1-difluoroethane, and product thus obtained
US6849772B2 · kind B2 · utility
0Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2002 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Oct 7, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/395
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.