METHOD FOR MANUFACTURING 2,3,3,3-TETRAFLUOROPROPENE

摘要

In the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf), formation of HFC-254eb as an excessively reduced product is suppressed. A process for producing 2,3,3,3-tetrafluoropropene, which comprises reacting a raw material compound composed of at least one of 1,1-dichloro-2,3,3,3-tetrafluoropropene and 1-chloro-2,3,3,3-tetrafluoropropene, and hydrogen, in a gas phase in the presence of a catalyst, wherein the catalyst is a palladium catalyst supported on active carbon, and the ratio of the hydrogen to the raw material compound to be introduced to a catalyst layer packed with the palladium-supporting active carbon is at most 0.7 as represented by the ratio of the number of moles of the hydrogen to the number of moles of chlorine atoms in the raw material compound (H 2 /Cl).