Patent ID: 7951982

Claim:
A process for the preparation of fluorinated olefins having three carbon atoms comprising: contacting a compound of Formula (I) C(R 1 a R 2 b R 3 c ) (I) with a compound of Formula (II) C(R 1 a R 2 b R 3 c )C(R 1 a R 2 b R 3 c ) (II) wherein R 1 , R 2 , and R 3 are each independently H or a halogen selected from the group consisting of fluorine; chlorine, bromine and iodine, provided that the compound of Formula (I) has at least three halogen substituents and that said at least three halogen substituents comprise at least one fluorine; a, b and c are each independently 0, 1, 2 or 3; said contacting step being carried out in the presence of a metal-based catalyst wherein said metal is selected from the group consisting of Ni, Pd, Sb, Al, and Fe to produce at least one tetrafluoropropene.