PROCESS OF PREPARING 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb)

摘要

PROBLEM TO BE SOLVED: To provide a novel process of preparing 2-chloro-1,1,1,2-tetrafluoropropane (244bb) used as a refrigerant or the like.;SOLUTION: A process of preparing 2-chloro-1,1,1,2-tetrafluoropropane (244bb) comprises: (a) contacting 2-chloro-3,3,3-trifluoropropene (1233xf) with HF in a reaction zone under conditions effective to form 244bb; and (b) adding one or more co-feed species which are chemically inert in the presence of HF and a fluorination catalyst with a normal boiling point between about -80°C and about 0°C.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT