PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE

摘要

Disclosed is a process for producing CF₃CF=CH₂ comprising the steps of: adding hydrogen and CF₃CF=CHF to a reaction vessel containing a hydrogenation catalyst; reacting said CF₃CF=CHF with hydrogen over said hydrogenation catalyst to produce CF₃CHFCH₂F; and dehydrohalogenating CF₃CHFCH₂F in the vapor phase over a catalyst selected from the group consisting of aluminum fluoride; gamma alumina, fluorided alumina; metals on aluminum fluoride; metals on fluorided alumina; oxides, fluorides, and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc and/or aluminum; lanthanum oxide and fluorided lanthanum oxide; chromium oxides, fluorided chromium oxides, cobalt-substituted chromium oxides, and cubic chromium trifluoride; carbon, acid-washed carbon, activated carbon, three dimensional matrix carbonaceous materials; and metal compounds supported on carbon, to produce CF₃CF=CH₂.