CATALYTIC PROPERTIES OF MOLYBDENA ALUMINA OXIDE CATALYSTS

In the present work studies were made on the deuteration of cyclohexad iene over reduced and sulfided molybdena-alumina. The deuteration reac tion goes in two steps. At first cyclohexene is formed and this is fur ther hydrogenated to cyclohexane. The formation of cyclohexadiene-d4 c an be explained by equal exchange in the four vinyl positions of cyclo hexadiene over the coordinatively unsaturated sites of the molybdena. The sulfied molybdena-alumina exhibited a much lower hydrogenation rat e for the cyclohexadiene.