Hydrogenation of Para-Nitrotoluene on Catalytic Systems Containing Oxides of Rare Earth Elements

Abstract:

This work is devoted to the study of the activity of 1% platinum catalysts containing rare earth element oxides (OREE) - Gd₂O₃, Ce₂O₃ and aluminum oxide as a carrier in the hydrogenation reactions of nitro compounds on the example of n-nitrotoluene. These catalytic systems in the conditions of liquid-phase hydrogenation provide high selectivity of the process and practically quantitative yield. The process was controlled by the potentiometric method, the reaction rate was judged by the amount of hydrogen absorbed per unit time. It is found that 20% and higher aqueous alcohol solutions can be used as a solvent during hydrogenation. It was found that the initial hydrogenation rate for 1% Pt/Gd₂O₃ is 3.2 times higher, and for 1% Pt/Ce₂O₃ Cerium it is 1.6 times higher relative to the 1% Pt/Al₂O₃ comparison catalyst.

• Periodical: Defect and Diffusion Forum (Volume 410)
• Pages: 389-393
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.410.389
• Online since: August 2021
• Authors: Galina M. Kurunina*, Olga M. Ivankina, Gennady M. Butov
• Keywords: Catalysis, Catalyst, Hydrogenation, Nitrotoluene, Platinum, Rare Earth Oxides

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