VAPOR PHASE PRODUCTION OF 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE FROM HYDROGEN FLUORIDE AND HEXAFLUOROPROPYLENE

摘要

A process for the production of HFC-227ea from HF and HFP is provided. This process takes advantage of an azeotropic composition of HF and HFC-227ea in order to produce HFC-227ea essentially free of HF and recycle unreacted HF back to the reactor. The recycle of said azeotropic composition, also allows the use of HFC-227ea as a diluent to aid in control of reactor temperature for a highly exothermic reaction.