SYNTHESIS OF 1,1,1-TRICHLOROETHANE BY FLUORINATION OF 1-CHLORO-1,1-DIFLUOROETHANE

摘要

the invention is the manufacture of 1,1,1 - 1,1,1-trifluoro - by fluorination of chloro - 1 - 1 - - difluorou00e9thane with anhydrous hydrofluoric acid.the reaction is carried out in the liquid phase and in the presence of a catalyst for fluorination.the study is mainly aimed at 1,1,1-trifluoro - mix with other hfcsto replace the f-22 (chlorodifluoromethane) and f502, azeotropic mixture of f22 and chloropentafluoroethane) in the field of refrigeration, air conditioning and other applications.