STUDY OF THE LIQUID-PHASE HYDROGENATION OF BENZENE IN THE PRESENCE OF METAL-POLYMER COMPLEXES BASED ON POLYVINYLPYRIDINES

Abstract

The liquid-phase hydrogenation of benzene on metal-polymer complexes, which were prepared on vinylpyridine polymers containing functional groups and salts of transition metals such as nickel, palladium, and platinum, was studied. Poly-4-vinylpyridine and poly-2-methyl-5-vinylpyridine were used as vinylpyridine polymers. Hydrogenation was carried at a temperature of 20-600 C. The study additionally focussed on the influence of the nature of the medium on the benzene hydrogenation process on poly-4-vinylpyridines. It has been established that in the presence of a platinum-poly-4-vinylpyridine complex, the reaction of liquid-phase hydrogenation of benzene, not only the product of complete hydrogenation, but also products of incomplete hydrogenation, cyclohexene, are formed. It was also found that the nature of the medium affects the yield of cyclohexane and cyclohexene selectively and effectively