Continuous process for the gaseous phase preparation in controlled proportions of trichlorotrifluoroethane, dichlorotetrafluoroethane and monochloropentafluorethane

摘要

continuous process for the preparation in the gas phase of the trichlorotrifluoru00e9thane, dichlorotu00e9trafluoru00e9thane and monochloropentafluoru00e9thane in proportions controlled, on the basis of chlorinehydrofluoric acid and tetrachloroethylene, and in the presence of a catalyst, characterized by the combination of two reactors in series of chlorination and fluoridation.a reactor for fluoridation - disproportionation in parallel.and a separation unit for the extraction of the desired products and recycling of the recovered hydrofluoric acid and fluorine or fluorinated products are.;the process enables the obtaining of dichlorotu00e9trafluoru00e9thane containing less than 7% asymmetric isomer and trichlorotrifluoru00e9thane containing less than 2% asymmetric isomer.