PROCESS FOR THE MANUFACTURE OF HYDROFLUOROOLEFINS

摘要

The invention relates to a process for manufacturing 1,1,1,2-tetrafluoropropene (1234yf, CF3-CF=CH2) from 1,1,3,3- tetrachlororopropene (1230za, CCl2=CH-CHCl2) and/or 1,1,1,3,3-pentachloropropane (240fa, CCl3CH2CHCl2). The process comprises an isomerization step of 1-chloro- 3,3,3 trifluoropropene (1233zd, CF3-CH=CHCl) to 2-chloro- 3,3,3 trifluoropropene (1233xf or CF3-CCl=CH2).