?z Pd-catalysts supported onpillared aluminum-zirconium Tagan (Kazakhstan) montmorillonite (ММ) from PdCl2and Pd-sol weresynthesized and their textural, acidic and catalytic properties in theisomerization of n-hexane were investigated, depending oncontent of the active metal and the temperature. It was shown that the activityand selectivity of Pd catalysts in the isomerization of n-hexane change littlewith decreasing of palladium content at different temperatures. On a 0.35% Pd-catalystat 400°C, the content of C6 isomers is 46.0%, with a decrease of thepalladium content to 0.1%, the isohexanes yield is 44.0% at a temperature of350°C. The C6-isomers yield on the Pd-catalyst from sol is 47%, whileon Pd it is 46%. A slightly increased isomerization activity of Pd-solcatalysts can be explained by a large number of average acid sites found onthis catalyst as compared with the results obtained on the Pd-catalyst from PdCl2.The particle size of palladium in a 0.35% Pd/AlZrNaHMM +HM-catalyst found fortwo different areas of the catalyst varies from 2.7 to 5.2 nm.
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