Process for the fluorination of perchloroethylene or...

Details Process for the fluorination of perchloroethylene or... Process for the fluorination of perchloroethylene or...

C - Chemistry, Metallurgy

07

C

C07C 19/08 (2006.01) B01J 27/125 (2006.01) B01J 27/128 (2006.01) B01J 27/132 (2006.01) C07C 17/087 (2006.01) C07C 17/20 (2006.01) C07C 17/21 (2006.01)

Patent

CA 2113510

The invention relates to gas-phase catalytic fluorination of perchlorethylene or pentachlorethane using hydrofluoric acid. A mixed catalyst is used consisting of nickel and chromium oxides, halides and/or oxyhalides, deposited on a support comprising aluminium fluoride or a mixture of aluminium fluoride and alumina, the said catalyst being previously activated by drying and by fluorination with hydrofluoric acid.

L'invention concerne la fluoration catalytique du perchloréthylène ou du pentachloréthane en phase gazeuse au moyen d'acide fluorhydrique. On utilise un catalyseur mixte composé d'oxydes, d'halogénures et/ou d'oxyhalogénures de nickel et de chrome, déposés sur un support constitué de fluorure d'aluminium ou d'un mélange de fluorure d'aluminium et d'alumine, ledit catalyseur étant préalablement activé par séchage et par fluoration au moyen d'acide fluorhydrique.

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