Patent Number: 6,252,099

Title: Fluorocarbon manufacturing process

Abstract: A process is disclosed 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. The process involves (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 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). Also disclosed are a novel composition of the formula Ag.sub.10 F.sub.8 C.sub.2 ; and a process for producing hexafluoroethane which involves heating Ag.sub.10 F.sub.8 C.sub.2 to a temperature sufficient for its decomposition.

Inventors: Subramanian; Munirpallam A. (Kennett Square, PA)

Assignee: E. I. du Pont de Nemours and Company

International Classification: C07C 17/10 (20060101); C07C 17/00 (20060101); C07B 39/00 (20060101); C07F 001/08 (); C01G 003/00 (); C07C 019/08 ()

Expiration Date: 06/26/2018