Jayaraman, K. and Velayutham, D. and Srinivasan, R.K. and Chidambaram, S. (2003) Isolation of ethylenediamine from industrial solution of ethylenediamine hydrochloride by electrodialysis. Journal of Chemical Technology and Biotechnology, 78. pp. 628-631.

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An industrial solution of ethylenediamine hydrochloride which contains about 18% chloride and 12% amine was electrodialysed in a five-compartment cell to obtain pure ethylenediamine. Different parameters such as alkali concentration and current density were studied to optimise conditions of maximum current efficiency for amine recovery and chloride removal from the feed solution. The Suitabilities of different ion-exchange membranes for electrodialysis were compared. Variation in current efficiency for amine recovery with increases in the concentration of amine during electrodialysis was also studied. Current efficiency for amine recovery and chloride removal is about 78% and 91% respectively under optimum conditions. The amount of electrical energy consumed is 12.1kWhkg−1 for ethylenediamine recovery and 8.6kWhkg−1 for chloride removal. The concentration of pure amine obtained after the electrodialysis was around 20%. The results are encouraging for industrial applications whereby ethylenediamines free from chlorides can be isolated.

Item Type: Article
Uncontrolled Keywords: ethylenediamine; electrodialysis; ethylenediamine hydrochloride
Subjects: Electroorganic
Depositing User: ttbdar CECRI
Date Deposited: 06 Mar 2012 12:05
Last Modified: 06 Mar 2012 12:05
URI: http://cecri.csircentral.net/id/eprint/878

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