Kinetics of 2-Methyl-6-acetyl-naphthalene Liquid Phase Catalytic Oxidation

• Published in: Chinese journal of chemical engineering Vol. 17; no. 1; pp. 72 - 77
• Main Author: 田文玉 薛为岚 曾作祥 邵记
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.02.2009
• Subjects: 2,6-naphthalene dicarboxylic acid; 2-methyl-6-acetyl-naphthalene; 2-甲基-6-乙酰基萘; Catalysts; Concentration (composition); Dicarboxylic acids; Evolution; kinetics; liquid phase catalytic oxidation; Liquid phases; Oxidation; Raw materials; Reaction kinetics; 反应动力学; 液相催化氧化; 2-methyl-6-acetyl-naphthalene; 2,6-naphthalene dicarboxylic acid; kinetics; liquid phase catalytic oxidation
• ISSN: 1004-9541; 2210-321X
• DOI: 10.1016/S1004-9541(09)60035-5

In this paper, a kinetics model for the liquid-phase oxidation of 2-methyl-6-acetyl-naphthalene to 2,6-naphthalene dicarboxylic acid catalyzed by cobalt-manganese-bromide is proposed. The effects of the reaction temperature, catalyst concentration and ratio of catalyst on the lime evolution of the experimental concentration for the constituents including raw material, intermediates and product are investigated. The model parameters are determined in a nonlinear optimization, minimizing the difference between the simulated and experimental time evolution of the product composition obtained in a semi-batch oxidation reactor where the gas and liquid phase were well nuxed. The kinetics data demonstrate that the model is suitable to the liquid-phase oxidation of 2-methyl-6-acetyl-naphthalene to 2,6-naphthalene dicarboxylic acid.