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US 5,495,056 AGranted
Production of hydrofluorocarbons
AssigneeImperial Chemical Industries PLC
InventorsLeslie Burgess, Thomas A. Ryan, Richard L. Powell
Life of this patent
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Abstract
A process for the production of hydrofluorocarbons, in particular hydrofluoroalkanes such as difluoromethane, which comprises contacting an .alpha.-fluoro-ether, in particular a fluorinated dialkyl ether such as bis(fluoromethyl)ether in the liquid phase with a Lewis acid such as a fluoride of Nb, Sb, B, Ta, Al or Ti.
Claims8
A process for the production of difluoromethane which comprises contacting the compound CH.sub.2 F--O--CFR.sup.1 R.sup.2 in which R.sup.1 and R.sup.2 are each H, in the liquid phase with a Lewis acid.
Dependencies are inferred from the claim text.