New isomerisation catalyst for linear and branched olefins and use thereof, in particular for the isomerisation of n-butene to isobutene.

摘要

Catalyst for isomerising linear olefins to branched olefins, especially n-butenes to isobutene, comprising at least one porous refractory metal oxide chosen from the group consisting of alumina, silica, silica alumina, zirconia and titanium oxide, at the surface of which at least one halogen and bismuth are present. According to the invention this catalyst contains less than 1 % by weight of bismuth and between 0.01 and 2 % by weight of chlorine respectively.