Manufacturing method for 1,1,1,3,3-pentafluoropropane
US5821392A · kind A · utility
2Cited by
1References
9Claims
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Key dates
| Filing date | Aug 11, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/23
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A manufacturing method for 1,1,1,3,3-pentafluoropropane by reducing 2,3-dichloro-1,1,1,3,3-pentafluoropropane as a raw material with hydrogen under the presence of a catalyst in a gaseous phase to produce 1,1,1,3,3-pentafluoropropane where a hydrogenation catalyst is used composed of palladium and at least one kind of additional metal selected from the group of silver, gold, copper, zinc, rhenium, cobalt, nickel, iridium, ruthenium, rhodium, tantalum, niobium, molybdenum, osmium and tungsten.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.