摘要 |
A heterogeneous catalyst is described, active in the metathesis reaction of olefins comprising alumina as inert carrier and a rhenium compound as active component, characterized in that rhenium is present in an amount of less than 5% by weight with respect to the total preferably from 1 to 4% by weight, and the inert carrier is impregnated with at least one inorganic halide selected from FeCl<SUB>3</SUB>, CuCl<SUB>2</SUB>, TiCl<SUB>4</SUB>, RuCl<SUB>3</SUB>, ZnCl<SUB>2 </SUB>and NH<SUB>4</SUB>Cl, and/or the corresponding bromides or iodides and, subsequently, treated at a high temperature. |