Metal-Polymer Catalysts in the Reaction of Benzene Hydrogenation

Abstract

Metal-polymer catalysts in the reaction of hydrogenation of benzene have been studied. Salts of nickel, palladium, and H2PtCl6·6H2O were used as metals, which were deposited on polymer carriers, in particular, on polyethylenepolyamine, poly-2-methyl-5-vinylpyridine, styrene copolymer with maleic anhyd¬ride, and poly-4-vinylpyridine. A number of polymer complexes were also synthesized, tuned to benzene hydrogenation products and cross-linked with N,N'-methylenebisacrylamide, a crosslinking agent. The temperature of the hydrogenation reaction was controlled within 20–600C. Hydrogenation was carried out in an autoclave. It has been established that complexes based on platinum and poly-4-vinylpyridine lead to a high yield of the product of incomplete hydrogenation of benzene, cyclohexene. Also, it has been established that the Pt-poly-2-methyl-5-vinylpyridine complex tuned to benzene and cyclohexene exhibits a higher catalytic activity

Study of the Liquid-Phase Hydrogenation of Benzene in the Presence of Metal-Polymer Complexes Based on Polyvinylpyridines

“…Attempts to eliminate the shortcomings of a homogeneous catalyst led to the creation of complexes containing organic polymers as microligands. In this case, the polymers act mainly as a heterogenizing substrate [8][9][10][11][12][13][14][15][16][17][18][19].…”