Abstract

1. Modification of an aluminoplatinum catalyst with manganese in a ratio Pt∶Mn=10∶1 promotes an increase in the activity of this catalyst in the reaction of hydrogenation of benzene and a decrease in the effect of poisoning by thiophene. The addition of chromium in the same amount reduces the activity and stability of the catalyst with respect to poisoning by thiophene. 2. In the case of modification of an aluminoplatinum catalyst with additions of manganese and chromium, the activity of the catalysts obtained in the liquid phase low-temperature hydrogenation of isoprene is increased.

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