Patent Number: 6,166,252

Title: Process for preparing dichlorofluoroacetyl halides

Abstract: Process for preparing dichlorofluoroacetylfluoride (CFCl.sub.2 COF) comprising the following steps:a) fluorination with hydrofluoric acid (HF) of the trichloroacetyl halide in a fixed or fluidized tubular bed reactor, filled with fluorination catalysts and having a temperature profile between the inlet of the reactants and the outlet of the reaction products, in the range from C. to C.b) distillation of the reaction products with trichloroacetylfluoride recycle and recovery of a mixture formed by HF and CFCl.sub.2 COF;c) separation of the HF/CFCl.sub.2 COF mixture components by cooling at temperatures lower than C., and optionally the HF recycle.

Inventors: Gavezotti; Piero (Milan, IT), Abusleme; Julio A. (Saronn, IT), Tortelli; Vito (Milan, IT)

Assignee: Ausimont S.p.A.

International Classification: C07C 51/58 (20060101); C07C 51/62 (20060101); C07C 51/60 (20060101); C07C 051/58 (); C07C 053/21 ()

Expiration Date: 12/26/2013