UNIV. NEWS. NORTH-CAUCAS. REG. TECHNICAL SCIENCES SERIES. 2022; 2: 47-55
http://dx.doi.org/10.17213/1560-3644-2022-2-47-55
TECHNOLOGICAL SOLUTIONS FOR THE ELECTROCHEMICAL SYNTHESIS OF CARBONYL COMPOUNDS FROM ALCOHOLS
Shubina Elena N. – Senior Lecturer, Department «Chemical Technologies of the Oil and Gas Complex», elenapapina1995@mail.ru
Kashparova Vera P. – Candidate of Technical Sciences, Associate Professor, Department «Chemical Technologies», kashparova2013@mail.ru
Mishurov Vladimir I. – Candidate of Chemical Sciences, Associate Professor, Department «Chemical Technologies of the Oil and Gas Complex», vimishurov@gmail.com
Zhukova Irina Yu. – Doctor of Technical Sciences, Professor, Department «Chemical Technologies of the Oil and Gas Complex», iyuzh@mail.ru
Abstract
The method of indirect electrochemical oxidation of alcohols to carbonyl compounds using a two-mediator catalytic system nitroxide radical of the TEMPO series/potassium iodide in a two-phase dichloromethane/aqueous solution of NaHCO3 was improved. For the effective implementation of the synthesis and in order to adapt the developed method for the oxidation of alcohols to the conditions of small-tonnage serial production, technological solutions were proposed to accelerate the oxidation process and reduce material and energy costs: a promoting additive - pyridine, a diaphragmless electrolyzer, affordable and cheap electrode materials - glassy carbon and nickel. The synthetic potential of the developed method made it possible to convert alcohols of different classes into the corresponding carbonyl compounds with a high yield in terms of substance (80–100 %) and current (70–90 %).
Keywords: alcohols, carbonyl compounds, pyridine, non-diaphragm electrolyzer, electrode materials
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