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Electrosynthesis of benzoic acid from chlorobenzene by carbon dioxide fixation method

Abdul Jalil, Aishah and Mohd Aris, Hartini and Suliman, Normala and Abdul Manaf, Norhuda and Hairom, Nur Hanis Hayati and Harun, Mohd Razif and Triwahyono, Sugeng (2007) Electrosynthesis of benzoic acid from chlorobenzene by carbon dioxide fixation method. In: Regional Annual Fundamental Science Seminar 2007 (RAFSS 2007) and 2nd International Conference on Mathematical Sciences (ICoMS 2007), May 28-29, 2007, Ibnu Sina Institute, UTM.

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Abstract

An alternative dechlorination method of chlorobenzenes by using a simple electrolysis system via carbon dioxide fixation technique has been developed. Electrolysis of chlorobenzene was carried out in a one-compartment cell fitted with an aluminium anode and a platinum cathode. Reaction in an N,N-dimethylformamide (DMF) solution containing 0.1M of tetrapropylammonium bromide (TPAB) at 0°C, 100 Ncc/min of CO2 flow rate and 120 mA/cm2 of current density was found to be the optimum conditions of this electrocarboxylation, which gave 72% yield of benzoic acid. This conditions was then applied to 1,2-dichlorobenzene and 1,3-dichlorobenzene in order to convert it to their corresponding benzoic acids.

Item Type:Conference or Workshop Item (Poster)
Uncontrolled Keywords:Electrosynthesis, chlorobenzene, benzoic acid, carbon dioxide, fixation.
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:5696
Deposited By: Norhani Jusoh
Deposited On:26 Jun 2008 05:07
Last Modified:01 Jun 2010 15:33

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