The paper studies the regularities of the reaction of catalytic cycloalkylation of phenol with methyl-cyclohexane in the presence of ceolite-U saturated with ortho-phosporic acid. To obtain a target product with the maximum yield, the effect of input variables, i.e. reaction temperature, duration, mole ratio of the initial components, and the catalyst amount has been analyzed. Mathematic interpretation of the experimental data enabled to obtain individual dependences of the output parameter of each input factor in the form of an equation of the second order. The generalized equation of the dependence of the output parameter of the optimization simultaneously on the all input variables has been developed. The optimum conditions of the reaction of obtaining para- (methylcyclo-hexyl) of phenol have been specified.
The paper presents the results of studies of the reaction of the interaction of phenol with cyclohexene (CH) in the presence of a Zeolite-Y catalyst impregnated with phosphoric acid and studying the dependence on the yield and selectivity of the target product on various parameters. As a result of the study of the phenol cycloalkylation by cyclohexene, optimal conditions were found, the yield of which is 81.6 % of theory for the taken CH, and the selectivity is 94.0 % for the target product. The developed mathematical model of the processes of the interaction of phenol with cyclohexene in the form of a regression polynomial made it possible to find the optimal values of the input variables.
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