Collect. Czech. Chem. Commun. 1979, 44, 2619-2623

The effect of preparation conditions of a platinum hydrogentaion catalyst on its activity and on the dispersity of platinum crystallites

Jiří Hanikaa, Karel Sporkaa, Vlastimil Růžičkaa and Jaroslav Bauerb

a Department of Organic Technology
b Department of Mineralogy, Prague Institute of Chemical Technology, 166 28 Prague 6


The paper deals with the preparation of a hydrogenation catalyst, 5% of platinum on active carbon. The support was saturated with aqueous chloroplatinic acid or platinum tetrachloride. After calcination in streaming nitrogen the catalyst was reduced with hydrogen. We studied the effects of temperatures of the calcination and the reduction on 1) the formation of hydrogen chloride in the course of calcination and the following reduction, 2) the dispersity of metallic platinum and 3) the catalytic activity for hydrogenation of 2-methyl-3-butene-2-ol and nitrobenzene in liquid phase. The catalytic activity was found to be proportional to the dispersity of platinum.