ИСТИНА

The synergetic effect of transition metal cation and Lewis acid immobilized on oxide surfaces is tested. High silica zeo-lites (ZSM-5, BEA) modified by the transition metal (Co, Ni, Cu) and aluminum salts catalyze of paraffin (С7-С12) conversion in soft conditions at 370-460К temperatures. The activity of the modified supports depends strongly on a phase state of the reagents. The activity of the modified supports depends strongly on a phase state of the reagents. In a liquid the effi-ciency of catalysts exceeds one of initial zeolites in 5-10 times while in a gas phase the activities of two systems are comparable. New active sites of transitional metals including coordination with immobilized aluminum chloride are formed by modification of oxide support with different additives. The mechanism of alkane transformation appears to be different on the zeolite catalysts in the liquid- and gas-phase processes. Adsorption phenomena linked to the confinement effects of zeolites are decisive importance in the gas-phase reactions, but the mutual influence of red-ox properties of transition metals and immobilized Lewis acids is crucial in liquid.