US Patent:
20110005914, Jan 13, 2011
Inventors:
Michael L. Trippeer - Midland MI, US
Timothy C. Frank - Midland MI, US
Patrick H. Au-Yeung - Midland MI, US
Jason L. Bronkema - Midland MI, US
Robin K. Johnston - Missouri City TX, US
Mukund R. Patel - Midland MI, US
Bruce S. Holden - Midland MI, US
Terrence McCabe - Midland MI, US
Daniel A. Hickman - Midland MI, US
International Classification:
B01D 3/34
Abstract:
A process for converting a 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.