Thermodynamic Modeling of the Stage of Polychlorinated Biphenyls Preparation to Thermal Decomposition

The reaction of Sovol (technical mixture of polychlorinated biphenyls) with sodium methoxide in dimethyl sulfoxide and methanol has been studied using the thermodynamic modeling method. The optimal process conditions have been elaborated: 1 atm, 115°C, 0.25 mol of dimethyl sulfoxide, 0.085 mol of me...

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Bibliographic Details
Published inRussian journal of general chemistry Vol. 89; no. 9; pp. 1836 - 1842
Main Authors Maiorova, A. V., Kulikova, T. V., Shunyaev, K. Yu, Gorbunova, T. I., Pervova, M. G.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2019
Springer
Springer Nature B.V
Subjects
Analysis
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Decomposition reactions
Dimethyl sulfoxide
Methanol
Modelling
PCB
Polychlorinated biphenyls
Pretreatment
Sodium
Sulfoxides
Thermal decomposition
Thermodynamic models
Thermodynamics
pyrolytic method
polychlorinated biphenyls
chemical pretreatment
thermodynamic modeling
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Summary:The reaction of Sovol (technical mixture of polychlorinated biphenyls) with sodium methoxide in dimethyl sulfoxide and methanol has been studied using the thermodynamic modeling method. The optimal process conditions have been elaborated: 1 atm, 115°C, 0.25 mol of dimethyl sulfoxide, 0.085 mol of methanol, the polychlorinated biphenyls: sodium methoxide molar ratio = 1: 4. Experimental data on the interaction of the polychlorinated biphenyls with sodium methoxide under the theoretically determined conditions have revealed a range of positive effects: savings of the reactants, complete conversion, and the formation of potentially less toxic compounds. The studied interaction can serve as a stage for the pretreatment of toxic polychlorinated biphenyls for the pyrolytic destruction.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363219090184