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AssigneeCentral Glass Company, Limited
InventorsTadaaki Komatsu, Hirokazu Takeda, Hideki Oshio, Kimiaki Matsuoka, Minoru Aramaki
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A process for preparing fluorine-rich organic compounds containing one or two carbon atoms from organic fluoro compounds of lower fluorine content in which starting partially or completely halogenated fluoro carbon compounds having at least one halogen atom other than fluorine, e.g., CHCl.sub.2 F, CHClF.sub.2, CCl.sub.2 F.sub.2, CCl.sub.3 F, C.sub.2 Cl.sub.3 F.sub.3, C.sub.2 Cl.sub.2 F.sub.4 and C.sub.2 Cl.sub.4 F.sub.2, are contacted under disproportionation conditions with a catalyst system of a specific type which comprises 0.1 - 5% by weight, as metal, of a nickel(II) halide, titanium(III) chloride or titanium(III) fluoride and a balance of an aluminum compound such as activated alumina, silica, alumina or aluminum fluoride.
A process for disproportionating a partially or completely halogenated fluoro derivative of methane containing not more than two fluorine atoms and at least one halogen atom other than fluorine or a completely halogenated fluoro derivative of ethane containing from 2 to 4 halogen atoms other than fluorine and correspondingly from 4 to 2 fluorine atoms, the process comprising contacting said derivative of methane or said derivative of ethane in gas phase and in a substantially moisture-free state under disproportionation conditions of a temperature of 100 to 600.degree. C and a space velocity of from 50 to 1000/hr, with a catalyst substantially composed of from 0.1 to 5.0% by weight, as metal, of a metal salt selected from the group consisting of nickel (II) halides, titanium (III) chloride and titanium (III) fluoride and a balance of a compound selected from the group consisting of activated alumina, silica.alumina and aluminum fluoride.
Dependencies are inferred from the claim text.