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Citation: YI Qing-Feng, YU Zhan-Liang, FAN Min, ZHOU Xiu-Lin, LIU Xiao-Ping. “In-Cell” Indirect Electrosynthesis of o-Tolualdehyde from o-Xylene[J]. Chinese Journal of Applied Chemistry, ;2005, 22(10): 1127-1131. shu

“In-Cell” Indirect Electrosynthesis of o-Tolualdehyde from o-Xylene

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a Faculty of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201;
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b Faculty of Material and Metallurgical Engineering, Kunming University of Science and Technology, Kunming;
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c Department of Purification Equipment Engineering, 718 Institute of China Ship Heavy Industry Corporation, Handan

Corresponding author: YI Qing-Feng,
Received Date: 12 November 2004
Available Online: 30 March 2005
Fund Project: 湖南省自然科学基金(03JJY6004) (03JJY6004)湖南省教育厅青年基金(03B043)资助项目 (03B043)

A new approach to the "in-cell" indirect electrosynthesis of o-tolualdehyde from o-xylene is reported in this paper.In an aqueous sulfuric acid solution containing V⁵⁺ ions,o-xylene was directly eletro-oxidized to o-tolualdehyde in an undivided cell where oxygen was continuously bubbled over the cathodic surface.The experimental conditions affecting the current efficiency for the o-tolualdehyde production,such as H₂SO₄ concentration,current density,electrolytic temperature,reaction time,V⁵⁺ concentration,and surfactant CTAB,were determined.The results show that the maximum current efficiency for o-tolualdehyde production was 155.20%.The current efficiency remained ~150% even when the aqueous solution separated from the electrolysis mixture was recycled for four times.
- o-tolualdehyde,
- oxygen electroreduction,
- redox V⁵⁺/V⁴⁺,
- o-xylene,
- electrolysis
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