Isomerization of 3,4-Dichloro-1-butene into 1,4-Dichloro-2-butene by Heterogeneous Catalysis

Abstract

The isomerization of 3,4-dichloro-1-butene into 1,4-dichloro-2-butene was investigated by gas-liquid chromatography in the temperature range of 60-90 ºC. Fe2₂O₃/TiO₂ was used as a catalyst. Fe₂O₃/TiO₂ solid acid catalyst has been prepared by the support saturation method, tested in the isomerization of 3,4-dichloro-1-butene into 1,4-dichloro-2-butene. This catalyst shows a high activity opposite to pure titania in this reaction. The present investigation focuses on the reactivity of titatia supported ferric oxide with iron contents of 5 wt. % in the isomerization of 3,4-dichloro-1-butene into 1,4-dichloro-2-butene. The activation parameters have been evaluated under optimized conditions, using the Arrhenius and Eyring plots.