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Liquid-Phase Hydrogenation of Aromatic Mononitro Compounds on Supported Porous Catalysts at Partial Hydrogen Pressures Lower than 0.1 MPa

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Abstract

The influence of the hydrogen partial pressure varied in the interval (4.3–100) × 103 Pa on the kinetics of liquid-phase catalytic hydrogenation of aromatic mononitro compounds in the presence of platinum and iridium supported on activated carbon in various percent ratios (Pt/C-2.5% and Ir/C-5%) was studied for 3,4-dichloronitrobenzene as example. A decrease in the hydrogen partial pressure leads to a significant decrease in the rate of the nitro compound consumption and in the yield of the intermediate arylhydroxylamine. A kinetic mechanism of hydrogenation of the nitro compound, satisfactorily describing the experimental data, was suggested.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia

    V. F. Dorokhov & V. V. Barelko

  2. All-Russia Research Institute of Problems of Civil Defense and Emergencies, Federal Center of Science and High Technologies, Teatral’nyi pr. 3, Moscow, 109012, Russia

    M. V. Kuznetsov

  3. OOO Khimfist, Chernogolovka, Moscow oblast, 142432, Russia

    V. V. Barelko

Authors
  1. V. F. Dorokhov
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  2. M. V. Kuznetsov
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  3. V. V. Barelko
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Correspondence to M. V. Kuznetsov.

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Original Russian Text © V.F. Dorokhov, M.V. Kuznetsov, V.V. Barelko, 2017, published in Zhurnal Prikladnoi Khimii, 2017, Vol. 90, No. 10, pp. 1339−1350.

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Dorokhov, V.F., Kuznetsov, M.V. & Barelko, V.V. Liquid-Phase Hydrogenation of Aromatic Mononitro Compounds on Supported Porous Catalysts at Partial Hydrogen Pressures Lower than 0.1 MPa. Russ J Appl Chem 90, 1655–1665 (2017). https://doi.org/10.1134/S1070427217100159

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  • DOI: https://doi.org/10.1134/S1070427217100159

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