DOI: https://doi.org/10.36719/2663-4619/127/258-268
Mahal Muradov 
Sumgayit State University
Sumgayit, Azerbaijan
mailoglu@mail.ru
Mushkunaz Nazarova
Sumgayit State University
Sumgayit, Azerbaijan
musgunaznazarova@mail.ru
Irada Garayeva
Sumgayit State University
Sumgayit, Azerbaijan
iradeqarayeva71@gmail.com
Ramiz Huseynov
Sumgayit State University
Sumgayit, Azerbaijan
https://orcid.org/0009-0000-6420-6364
ramiz.huseynov@sdu.edu.az
Zamina Abdulazimova
Sumgayit State University
Sumgayit, Azerbaijan
aspirant@live.ru
Construction of the Regression Equation of the Electrochemical Chlorination Process of Alkylation Products with Methanol, Ethanol, and Propanol of Methyl and Dimethyl Homologues of Phenol
Abstract
The aim of the presented work is to investigate the common and different characteristics of the regularities of obtaining aromatic compounds, including C1-C3 alkyl derivatives of phenols, anilines and naphthols by an effective catalytic alkylation process, and to develop the chlorination of hydrogen chloride in an electrochemical system.
Experiments in the laboratory were carried out in a five-factorial design. A mathematical model of the electrolysis process of obtaining aromatic amines, phenols and naphthols by the process of heterogeneous catalytic alkylation of low molecular weight alkyl (C1-C3) derivatives and comparative halogenation of individual homologues in an electrochemical system has been established. The "black box" principle was used here.
Taking into account what has been said, active experimental methods were used to create the optimal mode of the electrolysis process of alkylphenols, alkyl aromatic amines, HCl. A regression equation was formulated to build a mathematical model of the process.
To assess the homogeneity of parallel experiments, the average value of variances was found, and Fisher’s criterion was used to check the adequacy of the obtained results.
Ua(X1, X2, X3, X4, X5) min, Uv(X1, X2, X3, X4, X5) max and Ub(X1, X2, X3, X4, X5) max was taken for alkylamines, alkyl naphthols, alkylphenols and HCl as an optimization objective function.
A quick extraction method was used to optimize the process. For this, change steps were calculated according to all three objective functions. X2 was taken as base factor and step was accepted as =0.5 was taken. Then the steps corresponding to the other four factors were calculated. According to the report, the optimal level of chlorination products of alkyl aromatic compounds is 82.05% by current, 72.69% by substance, and 13.01% of HCl concentration. According to the obtained results, when X1= 0.482 A/cm2, X2=4.5 A/l, X3=38.8 0C, X4 = 19.8 %, X5 = 6 V, the output of the chlorination product of alkyl aromatic compounds according to the current is 82.05 %.
Keywords: hydrogen chloride, electrochemical chlorination, phenols, alkylphenol, catalytic alkylation, alkyl-aniline, alkyl aromatic