Process for producing 1,1,1,3,3-pentafluoropropane
US6291728A · kind A · utility
2Cited by
3References
5Claims
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Assignee
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Key dates
| Filing date | Mar 27, 1998 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Mar 27, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/206
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A manufacturing method for 1,1,1,3,3-pentafluoropropane, wherein 1,1,1,3,3-pentafluoropropane (HFC-245fa) is obtained by reacting halogenated propane, for example, 1,1,1,3,3-pentachloropropane and so on, which is represented by the general formula: EQU CX.sub.3 CH.sub.2 CHX.sub.2 PA1 [In the general formula, X is fluorine atom (F) or chlorine atom (Cl), and all of X can not be fluorine atoms at the same time], with anhydrous hydrofluoric acid (HF) under the presence of antimony catalyst. HFC-245fa can be obtained with high yield and economical advantages through simple process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.