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  • 1
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Preliminary experiments have been carried out on the mediated electrolytic synthesis of 1,2-epoxyhexane from 1-hexene. The electrochemical cell was an undivided parallel-plate reactor under galvanostatic operation at 25°C and 1 atm. The electro-active Br2/Br− couple acted as the mediating species. A dispersion of 1-hexene droplets in aqueous sodium bromide solution was generated by use of a static mixer. Current efficiency for organic species and chemical yield of epoxide were determined in order to investigate qualitatively the dependence of the overall electrolyzer performance upon flow rate, organic volume fraction, dispersed droplet size, and current density. The cell effluent was analyzed by gas chromatography. Epoxide current effciencies around 65% were obtained under operation conditions where the rate of bromine production by anodic reaction was sufficiently high so as to exceed the saturation concentration of hexene. Since the aqueous cell effluent was depleted of hexene, if was concluded that mass transfer from the organic phase into the aqueous phase was not able to replenish the electrolyte effectively.
    Type of Medium: Electronic Resource
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