HYDROGENOLYSIS OF HALOCARBON MIXTURES

摘要

2107802 9218446 PCTABS00016 Mixtures of halocarbons which contain fluorine and chlorine and/or bromine (e.g. a mixture of CCl2FCF3 with CClF2CF3, CCl2F2, CClF2CClF2 or CHClF2) are contacted with hydrogen in the presence of silicon carbide and/or a metal selected from aluminum, molybdenum, titanium, nickel, iron or cobalt (or their alloys) at temperatures of 350 ·C to 700 ·C and pressures of 0 to 1000 psig to obtain a product mixture which substantially corresponds in terms of the distribution of fluorine substituents on carbon atoms with the mixture of halocarbon starting materials.