KINETICS OF ANILINE-FORMALDEHYDE INTERACTION UNDER CONDITIONS OF HOMOGENEOUS CATALYSIS

The work is devoted to the kinetic modeling of reactions for the production of 4,4-diaminodiphenylmethane (MDA) in the presence of a catalyst. FASHION is a solid substance from colorless to pale yellow in color with a faint odor. It is used on an industrial scale mainly for the manufacture of polyurethanes, which have many applications, for example, insulating materials in mail containers. MDA is also used for the manufacture of coating materials, adhesives, spandex fibers, dyes, and rubber. This product belongs to the categories of medium and low-tonnage industries, which determines its importance in the chemical industry. The importance of the process of obtaining MDA and the application of kinetic modeling of a chemical reaction is described. The paper proposes a model that allows us to predict the kinetic curves of the studied reaction for obtaining MDA. The proposed model can be used to calculate flow-through or ring-shaped chemical reactors. The type and parameters of the model were obtained by minimizing deviations of experimental and calculated values of concentrations of reagents and products, while the model showed its adequacy to the experiment. The limits of its applicability were checked using computational experiments under various conditions- the ratio "aniline:formaldehyde", reaction temperature. As a result, the kinetic curves of the reactions for obtaining MDA in the presence of a catalyst at a given temperature were predicted. Computational experiments were carried out to predict the kinetic curves of the reactions of obtaining MDA in the presence of a catalyst at a given temperature. The calculation results were compared with experimental data. It is shown that the developed model can be used to predict the kinetics of the reaction of obtaining MDA in the presence of a catalyst at a given temperature. The subsequent kinetic experiment showed the coincidence of the experimental and predicted curves.