SELECTIVE DEHYDROHALOGENATION OF TERTIARY HALOGENATED HYDROCARBONS AND REMOVAL OF TERTIARY HALOGENATED HYDROCARBON IMPURITIES FROM A HALOGENAGED HYDROCARBON PRODUCT

摘要

A process for converting tertiary halogenated hydrocarbons in a tertiary halogenated hydrocarbon-containing stream to a corresponding unhalogenated or less-halogenated unsaturated hydrocarbon product with the release of hydrogen halide involves contacting the tertiary halogenated hydrocarbon with a sorbent-type dehydrohalogenation catalyst in a reaction zone and optionally passing a stripping gas through the reaction zone to remove vapor phase reaction products from the reaction zone. A process for removing a tertiary chlorinated hydrocarbon impurity from 1,3-dichloro-1-propene involves contacting a mixture containing the 1,3-dichloro-1-propene and the tertiary chlorinated hydrocarbon impurity with a dehydrochlorination catalyst effective to catalyze a conversion of the tertiary chlorinated hydrocarbon impurity to a corresponding unchlorinated or less-chlorinated unsaturated hydrocarbon and hydrogen chloride and distilling the 1,3-dichloro-1-propene to produce a purified cis-1,3-dichloro-1-propene fraction and a purified trans-1,3-dichloro-1-propene fraction.

主权项

1. A method for removing a tertiary halogenated hydrocarbon impurity from a target hydrocarbon compound, comprising:
providing a first mixture comprising a target hydrocarbon compound and a tertiary halogenated hydrocarbon impurity; contacting the first mixture containing the tertiary halogenated hydrocarbon impurity with a dehydrohalogenation catalyst effective to catalyze a conversion of the tertiary halogenated hydrocarbon impurity to a corresponding unhalogenated or less-halogenated unsaturated hydrocarbon and hydrogen halide, thereby providing a modified mixture; and distilling the modified mixture to separate and recover a purified target hydrocarbon compound.