STRUCTURE MODIFICATION OF MORDENITE THROUGH ISOMORPHOUS TI SUBSTITUTION - CHARACTERIZATION AND CATALYTIC PROPERTIES

The introduction of Ti atoms by means of TiCl4 treatment and hydrother mal synthesis has been applied to mordenite zeolite with different str uctures from silicalite. The incorporation of Ti into the mordenite fr amework is demonstrated by XRD, FTIR, Si-29 MAS NMR techniques, and te sted with catalytic oxidation reactions. Ti-Al-mordenite catalyses the oxidation of n-hexane, cyclohexane and benzene with hydrogen peroxide under very mild conditions. These reactions can be performed in metha nol, acetonitrile and water as solvents. The rate of the reaction is s trongly affected by the kind of solvent.