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    • 34. 发明专利
    • PRODUCTION OF LOWER UNSATURATED HYDROCARBON
    • JPH09249590A
    • 1997-09-22
    • JP6080896
    • 1996-03-18
    • TOSOH CORPMOCHIDA ISAO
    • MOCHIDA ISAO
    • B01J31/02B01J35/06C07B61/00C07C1/30C07C17/25C07C21/04C07C21/06
    • PROBLEM TO BE SOLVED: To obtain the subject compound economically in a high yield by making a contact of a chlorinated hydrocarbon with a specific catalyst capable of performing a catalytic dehydrochlorination reaction continuously at a low temperature in a highly active and highly selective method. SOLUTION: This method for producing a lower unsaturated hydrocarbon is to make a contact of a 2-4C chlorinated hydrocarbon with an activated carbon fiber deposited with a tricyclic compound having a ring constituted by C atom and N-atom (suitably pyridine) (hereinafter called N-ACF) for performing a dehydrochlorination reaction. It is preferable to apply the reaction in the case of using 1,2-dichloroethane as the chlorinated hydrocarbon to obtain vinylchloride as an objective material, etc. The above catalytic dehydrochlorination is preferably performed at 350-400 deg.C, under >=1atm pressure and by continuously supplying the chlorinated hydrocarbon in the state of a gas by heating previously, to the N-ACF. As the N-ACF, e.g. a substance obtained by depositing the above cyclic compound to the activated carbon fiber in a heated state by using Cahn balance device, etc., is cited.