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Electrolytic recovery of chlorine from hydrogen chloride gas with fused molten salt electrolyte LiCl/KCl

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Abstract

A method of electrolytic recovery of chlorine from hydrogen chloride gas based on the fused molten salt LiCl/KCl is under development. For the feasibility study, described here, a reticulated vitreous carbon (or porous carbon) cathode was immersed in a low-melting eutectic of LiCl/KCl. A graphite rod was used as the anode. Gaseous dilute hydrogen chloride, in a mixture with nitrogen, was reduced to elemental hydrogen and chloride at the cathode, and chlorine was produced at the anode. At stoichiometric current, current efficiency is greater than 90%. The removal efficiency is as high as 97%.

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Authors and Affiliations

  1. School of Chemical Engineering, Georgia Institute of Technology, 30332-0100, Atlanta, Georgia, USA

    Y. Ding & J. Winnick

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  1. Y. Ding
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  2. J. Winnick
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Additional information

Patent pending (May 1995).

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Ding, Y., Winnick, J. Electrolytic recovery of chlorine from hydrogen chloride gas with fused molten salt electrolyte LiCl/KCl. JOURNAL OF APPLIED ELECTROCHEMISTRY 26, 143–146 (1996). https://doi.org/10.1007/BF00364063

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  • DOI: https://doi.org/10.1007/BF00364063

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