Catalysts for the isomerization of hydrocarbons, a process for the preparation of said catalysts, and applications thereof

Abstract From the Canadian patent

Isomerization catalysts for hydrocarbons and particul-, arly for normal paraffins and/or naphthenes are formed of at least one platinum-group metal, preferably platinum; at least one element : selected from the group consisting of rare earths and yttrium; at least one metal halide, for example aluminum trichloride; and a carrier for the foregoing metals and halide which is formed in whole or in part of at least one refractory mineral oxide such, as alumina, and additionally a halogen in combined form preferably, chlorine; the catalysts being prepared by at least one impregnation of the carrier with at least one solution containing at least one of the elements yttrium, rare earths, and …