CATALYST FOR METATHESIS REACTIONS AND USE OF IT

摘要

The invention relates to a catalyst for the conversion of a hydrocarbon mixture which contains acyclic olefins and cyclic olefins or straight-chain terminal dienes by a metathesis reaction to prepare diene hydrocarbons, which catalyst is prepared by adding a rhenium and/or molybdenum compound onto an inorganic oxide carrier and by calcining the catalyst thus obtained. According to the invention, before the adding of the rhenium or molybdenum compound the carrier is treated with an alcohol which serves as a modifier decreasing the polymerisation activity of the catalyst, said modifier being removed before the addition of the rhenium or molybdenum compound.