Azeotrope and azeotrope-like compositions useful for the production of haloolefins
US8741828B2 · kind B2 · utility
7Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2012 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C21/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention pertains to ternary azeotrope and azeotrope-like composition including 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), HF, and either 1,1,2,3-tetrachloropropene (TCP) or 1,1,1,2,2-pentafluoropropane (HFC-245cb). The present invention also relates to binary azeotropes of 2,3,3,3-tetrachloropropene and HF. Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.