Production of difluoromethane
US5463139A · kind A · utility
2Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/01
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A composition comprising bis(fluoromethyl)ether and less than an equimolar amount of water, a process for the production of the composition comprising contacting formaldehyde with hydrogen fluoride and separating at least some of the by-product water from bis(fluoromethyl)ether, and use of the composition for the production of difluoromethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.