Patent ID: 6096932
Filing Date: 2000-08-01
Classification: C07B,C07C

Abstract:
A process for increasing the fluorine content of an olefinic compound of the formula C.sub.n H.sub.m F.sub.2n-m, where n is an integer from 2 to 6 and m is an integer from 1 to 2n, comprising:(a) contacting the olefinic compound with a metal fluoride composition of the formula (AgF)(MF.sub.2).sub.x where M is selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof and wherein x is a number from 0 to 1, at a temperature above 200.degree. C. sufficient to transfer F from the metal fluoride composition to the olefinic compound, thereby producing a chemically reduced metal fluoride composition comprising metallic silver;(b) oxidizing the reduced metal fluoride composition from (a) in the presence of HF to regenerate the metal fluoride composition of the formula (AgF)(MF.sub.2).sub.x ; and(c) recycling regenerated metal fluoride composition of (b) to (a).