Method for producing fluorine-containing olefin
AssigneeDaikin Industries, Ltd.
InventorsTakehiro Chaki, Shun Ohkubo, Daisuke Karube
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Abstract
The present invention provides a method for producing a target fluorine-containing olefin with high conversion and selectivity using a process comprising a dehydrofluorination reaction of a hydrofluorocarbon. The method comprises a first reaction step comprising subjecting a hydrofluorocarbon to dehydrofluorination in the presence of a catalyst. The hydrofluorocarbon is a compound represented by Formula (1): RfCFYCHZ2, wherein Rf represents a straight or branched C1-3 perfluoroalkyl group, and Y and Z each independently represent H or F wherein when all Zs are H, Y represents F. The catalyst comprises chromium oxide represented by the chemical formula: CrOm (1.5<m<3).
Claims10
A method for producing a fluorine-containing olefin, the method comprising a first reaction step comprising subjecting a hydrofluorocarbon to dehydrofluorination in the presence of a catalyst, wherein:
- the hydrofluorocarbon is HFC-245eb,
- the catalyst comprises a chromium oxide represented by the chemical formula:
- CrOm, wherein 2.05≤m≤2.3, and
- the dehydrofluorination in the first reaction step is performed at 200 to 380° C.
Dependencies are inferred from the claim text.