Collect. Czech. Chem. Commun. 1979, 44, 2378-2383

Catalytic hydrogenation of binary and ternary mixtures of unsaturated substances in the liquid phase on platinum

Libor Červený, Radka Junová and Vlastimil Růžička

Department of Organic Technology, Prague Institute of Chemical Technology, 166 28 Prague 6


Hydrogenation of olefinic substrates in binary and ternary mixtures using 5% Pt on silica gel as the catalyst was studied in normal conditions in the liquid phase with methanol or cyclohexane or in solvent-free systems. The effect of the solvent concentration on the selectivity of hydrogenation of the unsaturated alcohol-olefin binary mixtures was investigated. In ternary systems of unsaturated substrates, the effect of each of the substrates on the selectivity of hydrogenation of the remaining two substances was examined. Another system was found in which a jump change of the hydrogenation selectivity occurred on the vanishing of the fastest reacting substance.