Process for producing 2,3,3,3-tetrafluoropropene
US8846990B2 · kind B2 · utility
6Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Oct 10, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0286
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates, in part, to the discovery that the presence of impurities in a reactor for dehydrochlorinating HCFC-244bb to HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially removing such impurities, it is shown that the selectivity to HFO-1234yf via dehydrochlorination of HCFC-244bb is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.