Recovery of HFC-32
US6605193B2 · kind B2 · utility
1Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2001 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jun 2, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for isolating 32 from a crude mixture containing HCl and an azeotropic mixture of 32 and HF is provided without the need to isolate any HF azeotrope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.