Process for the preparation of trifluoro-ethanol by hydrolysis, in the gas phase, of chlorotrifluoroethane
AssigneeRhone-Poulenc Chimie
InventorsClaude Doussain, Michel Gubelmann, Philippe-Jean Tirel
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Abstract
A process for the preparation of trifluoroethanol by hydrolysis, in the gas phase, of chlorotrifluoroethane. A gaseous mixture of 1-chloro-2,2,2-trifluoroethane and water is contacted with a solid catalyst and taken to a temperature greater than 350.degree. C. and preferably between 400.degree. and 500.degree. C. 2,2,2-Trifluoroethanol (TFE) is a trifluorinated alcohol possessing very good thermal stability, which makes it suitable for a certain number of applications, in particular in the synthesis of fluorinated anesthetics, in pharmacology in general, and as a solvent.
Claims16
A process for the preparation of trifluoroethanol by hydrolysis of trifluorochlorethane which comprises contacting a gaseous mixture of 1-chloro-2,2,2-trifluoroethane and water with a solid catalyst comprising at least one phosphate, one hydrophosphate, or one oxide of a di- or trivalent metal, at a temperature greater than 350.degree. C.
Dependencies are inferred from the claim text.