Verfahren zur Disproportionierung und/oder Koreaktion von acylischen olefinischen Kohlenwasserstoffen

摘要

Acyclic olefins and mixtures thereof are dis-proportionated or co-reacted in the presence of a catalyst comprising a mixture of rhenium heptoxide and alumina, the reaction pressure being just sufficient to maintain the reaction product completely in the liquid phase. An inert diluent, e.g. paraffin or cyclo-paraffin, may be present. Examples illustrate the conversion of propylene to ethylene and butene-2.