Catalytic fluorination of 1,1,1-trifluoro-2-chloro-ethane in the presence of oxygen over chromium based catalyst doped or not by zinc supported over partially fluorinated alumina |
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Authors: | A Loustaunau R Fayolle-Romelaer S Celerier S Brunet |
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Institution: | Laboratoire de Catalyse en Chimie Organique, UMR CNRS 6503, Université de Poitiers Faculté des Sciences Fondamentales et Appliquées 40, Avenue du Recteur Pineau, 86022 Poitiers Cedex, France |
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Abstract: | The addition of zinc in low amount to chromium based catalyst supported over partially fluorinated alumina has a positive effect for the fluorination reaction of CF3CH2Cl in the presence of dioxygen in order to prevent the catalyst deactivation. However, under these operating conditions, the Deacon reaction by reaction with HCl produced by Cl/F exchanges could be involved. The formation of various by-products was observed corresponding to the addition of HCl or Cl2 into halogenated double bonds. |
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Keywords: | Fluorination Chromium oxide Zinc 1 1 1-Trifluoro-2-chloro-ethane Deacon |
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