Catalytic preparation of trifluoroacetaldehyde

Details Catalytic preparation of trifluoroacetaldehyde Catalytic preparation of trifluoroacetaldehyde

C - Chemistry, Metallurgy

07

C

260/570.9

C07C 45/63 (2006.01) C07C 47/14 (2006.01)

Patent

CA 1213905

PRECIS DE LA DIVULGATION: L'invention concerne un procédé catalytique continu de préparation de trifluoroacétaldéhyde par fluoru- ration en phase gazeuse de trichloroacétaldéhyde en une seule zone de réaction entre 230°C et 260°C, sur un cataly- seur constitué d'une alumine gamma imprégnée de Cr2O3 à raison de 1,5 à 4 atomes de chrome/1 d'alumine et activé entre 300°C et 400°C par un mélange d'acide fluorhydrique et de trichloro-1,1,2-trifluoro-1,2,2 éthane.

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