Patent ID: 8058486

Claim:
A method for preparing 2,3,3,3-tetrafluoroprop-1-ene comprising: a. providing a starting composition comprising at least one compound having a structure selected from Formulae I, II and III: CX 2 â•CClâ€”CH 2 Xâ€ƒâ€ƒ(Formula I) CX 3 â€”CClâ•CH 2 (Formula II) CX 3 â€”CHClâ€”CH 2 Xâ€ƒâ€ƒ(Formula III) wherein X is independently selected from F, Cl, Br, and I, provided that at least one X is not fluorine; b. contacting said starting composition with a first fluorinating agent to produce a first intermediate composition comprising 2-chloro-3,3,3-trifluoropropene and a first chlorine-containing byproduct; c. contacting said first intermediate composition with a second fluorinating agent to produce a second intermediate composition comprising 2-chloro-1,1,1,2-tetrafluoropropane; and d. dehydrochlorinating at least a portion of said 2-chloro-1,1,1,2-tetrafluoropropane to produce a reaction product comprising 2,3,3,3-tetrafluoroprop-1-ene and a second chlorine-containing byproduct.