Patent ID: 8889924

Claim:
A process for the production of 1,3,3,3-tetrafluoropropene (HFO-1234ze) comprising the continuous steps of: (a) reacting carbon tetrachloride with vinyl fluoride to afford a yield of up to about 60% by weight of the compound CCl 3 CH 2 CHClF (HCFC-241fb); (b) fluorinating the HCFC-241fb formed in step (a) with an excess amount of HF in the presence of a fluorination catalyst to afford a yield of up to about 40% by weight of the compound CF 3 CH 2 CHClF (HCFC-244fa); and (c) dehydrochlorinating the HCFC-244fa formed in step (b) to produce a yield of up to about 40% by weight of the compound CF 3 CH═CHF (HFO-1234ze); wherein the reaction of carbon tetrachloride with the vinyl halide compound is conducted in the presence of triethylphosphate and an iron material selected from the group consisting of supported or unsupported iron powder, iron nanopowder and iron nanoparticles, at a temperature of from about 120° C. to 130° C.