Production of hydrofluorocarbons

Details Production of hydrofluorocarbons Production of hydrofluorocarbons

C - Chemistry, Metallurgy

07

C

C07C 19/08 (2006.01) C07C 17/00 (2006.01) C07C 17/361 (2006.01)

Patent

CA 2137235

A process for the production of a hydro(halo)fluorocarbon which comprises contacting an .alpha.-fluoroether in the vapour phase at an elevated temperature with a catalyst and wherein the catalyst is treated whereby to maintain and/or restore its activity. The catalyst treatment comprises either: (i) heating the catalyst to an elevated temperature above about 250°C in the absence of an .alpha.-fluoro ether, or (ii) contacting the catalyst at an elevated temperature with an oxidising agent whilst or between the times when the .alpha.-fluoro ether is contacted with the catalyst. The catalyst may be an oxidation promoting metal, for example zinc, iron or copper, carried on a metal oxide, fluoride or oxyfluoride support.

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