| abstract |
Disclosed is a heterogeneous catalyst that is active in olefin metathesis reactions, the catalyst comprising alumina as an inert carrier and a rhenium compound as an active component, the rhenium being less than 5% by weight, preferably 1 to Present in an amount of 4% by weight, and the inert carrier is at least one selected from FeCl 3 , CuCl 2 , TiCl 4 , RuCl 3 , ZnCl 2 and NH 4 Cl, and / or the corresponding bromide or iodide. Characterized by impregnation with seed inorganic halide and subsequent treatment at high temperature. |