The kinetics of the liquid-phase hydrogenation of 4-(hydroxyamino)-2-nitrotoluene, 4-amino-2-nitrotoluene, and 2-amino-4-nitrotoluene were studied in ethanol over a 5% Pd/C catalyst, in the temperature range between 283 and 323 K and at a pressure of 0.1 MPa. The reaction rates have been described by a Langmuir - Hinshelwood type model with adsorption of the organic species and hydrogen on a different type of active site. The rate constant, the adsorption constants, and the activation energy for each reaction have been determined by a nonlinear regression analysis. The effect of molecular structure on the reactivity of mono- and dinitro derivatives has been also investigated.

Catalytic Hydrogenation of 4- (Hydroxyamino) -2- Nitrotoluene (4HA2NT) and 2,4Nitroaminotoluenes Isomers. Kinetics and Reactivity

M. G. MUSOLINO;L. BONACCORSI;DONATO, Andrea
1997

Abstract

The kinetics of the liquid-phase hydrogenation of 4-(hydroxyamino)-2-nitrotoluene, 4-amino-2-nitrotoluene, and 2-amino-4-nitrotoluene were studied in ethanol over a 5% Pd/C catalyst, in the temperature range between 283 and 323 K and at a pressure of 0.1 MPa. The reaction rates have been described by a Langmuir - Hinshelwood type model with adsorption of the organic species and hydrogen on a different type of active site. The rate constant, the adsorption constants, and the activation energy for each reaction have been determined by a nonlinear regression analysis. The effect of molecular structure on the reactivity of mono- and dinitro derivatives has been also investigated.
Activation energy, ; Aromatic compounds,; Carbon,; Catalysis,; Derivatives,; Ethanol,; Gas adsorption,; Mathematical models, ; Molecular structure,; Palladium, ; Reaction kinetics,; Regression analysis; Aminonitrotoluene,; Hydroxyamino nitrotoluene,; Langmuir Hinshelwood model; Hydrogenation
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12318/2586
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