HALOFLUOROCARBON HYDROGENOLYSIS

摘要

A highly selective process is disclosed for the hydrogenolysis of 2,2-dichlorohexafluoropropane (i.e., CFC-216aa or CF3CCl2CF3) to 2,2-dihydrohexafluoropropane (i.e., HFC-236fa or CF3CH2CF3) and 2-chloro-2-hydrohexafluoropropane (i.e., 226da or CF3CHClCF3). The process involves reacting the starting material with hydrogen at an elevated temperature of about 300 DEG C or less in the presence of a catalyst containing a catalytically effective amount of palladium supported on a support of fluorinated alumina and/or aluminum fluoride.