Synthesis of 1234YF by selective dehydrochlorination of 244BB
US8263817B2 · kind B2 · utility
7Cited by
2References
7Claims
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Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/038
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,tetrafluoro-2-chloropropane with a catalyst comprised of chromium (III) oxide, and at least 1% of an alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in step (a) above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.