Preparation of 3,3,3-trifluoropropene-1

Details Preparation of 3,3,3-trifluoropropene-1 Preparation of 3,3,3-trifluoropropene-1

B - Operations, Transporting

01

J

252/52, 260/657.

B01J 27/12 (2006.01) B01J 27/32 (2006.01) B01J 37/26 (2006.01) C07C 17/00 (2006.01)

Patent

CA 1326480

PREPARATION OF 3,3,3-TRIFLUOROPROPENE-1 ABSTRACT What is describet is a process for preparing a more effective catalyst for the vapor-phase reaction of 1,1,1,3- tetrachloropropane with anhydrous hydrogen fluoride to produce 3,3,3-trifluoropropene-1. The process comprises (A) mechanically mixing, in the absence of water, (i) aluminum fluoride which has been prepsred at temperatures less than about 400°C. and (ii) a transition metal compound, the transition metal compound being selected from a group consisting of compounds of cobalt, chromium, iron, manganese, nickel, titanium, and vanadium; and (B) contacting the mechanical mixture with sufficient anhydrous HF to convert the transition metal compound to a transition metal fluoride. Also described is the catalyst. Additionally, a process for the preparation of 3,3,3-trifluoropropene-1 in which the catalyst is utilizet is described.

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