The oxidative p-dichlorobenzene dechlorinating in the presence of copper (ΙΙ) complexes and nitrogen (ΙΙ, ΙV) oxides

Valentina Yemelyanova; Zhaksyntay Kairbekov; Tatiana Shakieva; N. Nemykina; B. Dosumova; U. Dzhatkambaeva

doi:10.15328/chemb_2012_414-21

Valentina Yemelyanova BSE Scientific Research Institute of New Chemical Technologies and Materials of the RSE al-Farabi Kazakh National University
Zhaksyntay Kairbekov BSE Scientific Research Institute of New Chemical Technologies and Materials of the RSE al-Farabi Kazakh National University, Almaty
Tatiana Shakieva BSE Scientific Research Institute of New Chemical Technologies and Materials of the RSE al-Farabi Kazakh National University, Almaty
N. Nemykina BSE Scientific Research Institute of New Chemical Technologies and Materials of the RSE al-Farabi Kazakh National University, Almaty
B. Dosumova BSE Scientific Research Institute of New Chemical Technologies and Materials of the RSE al-Farabi Kazakh National University, Almaty
U. Dzhatkambaeva BSE Scientific Research Institute of New Chemical Technologies and Materials of the RSE al-Farabi Kazakh National University, Almaty

DOI: https://doi.org/10.15328/chemb_2012_414-21

Keywords: oxidation, dechlorination, p-dichlorbenzene, catalyst, kinetics, mechanism

Abstract

The results of dechlorination in the solution CuCl₂–TBP–NaNO₂–О₂–Н₂О kinetics research are presented in the article. All system components influence to the dechlorination process is studied and quantitatively described. The composition of copper intermediate complexes participating in reaction is studied by the instrumentality of UV-spectroscopy. Established part of binuclear copper complexes in the catalytic intermediate complex constants of formation were estimated and compared with the kinetic and spectrophotometric methods. The composition of the intermediate complexes responsible for process is defined, the mechanism scheme is offered, the p-dichlorobenzene dechlorination limiting stage including redox-disintegration of the intermediate complex consisting of dimeric complex of copper (II, I) chloride, nitrogen oxide and p-dichlorobenzene is defined.

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