Process for the production of HFO trans-1234ze from HFC-245fa
US8067650B2 · kind B2 · utility
21Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2007 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jul 10, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates a process for the manufacture of the HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze). More particularly, the invention pertains to a process for the manufacture of the HFO trans-1234ze by first dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and hydrogen fluoride. Then optionally recovering hydrogen fluoride and then recovering trans-1,3,3,3-tetrafluoropropene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.