Activity of a Block Cellular Catalyst with a Modified Substrate

The effect of active substrate on the process of liquid-phase reduction of para-nitrotoluene (P-NT) on a highly porous cellular palladium catalyst (HPCPC) is studied. The rate of the reducing reaction for 50% transformation of the initial nitric compound in the temperature range of 52 – 58°C is determined for the HPCPC using various oxides and their sulfatized forms as active substrate. It is shown that the highest velocity of P-NT hydration is reached using the HPCPC with an active substrate made of sulfatized ZrO2 and (gamma)-Al2O3. The constants of reducing P-NT and the load of the nitric compound on the catalyst are calculated; the highest values are found in the HPCPC with a sulfatized ZrO2 substrate.