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Anodic coal reaction lowers energy consumption of metal electrowinning


THE metals which can be extracted in large amounts from aqueous solutions of their salts by electrowinning are Cr, Mn, Co, Ni, Cu, Zn, Ga, Cd, In and Tl. Gilroy1 specifies an annual electrowinning production for 1971 of 2,400,000 tons of Zn and 540,000 tons of Ca, 53% and 10% respectively of total production at that time. We describe here a modification to the established electrowinning technique which lowers the energy consumption of the process.

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  1. Gilroy, D. The Electrowinning of Metals, Industrial Electrochemical Processes (ed. Kuhn, A.) Ch. 6 (Elsevier, New York, 1971).

    Google Scholar 

  2. Browall, K. W. & Hanneman, R. E. General Electric Technical Information Ser., Rep. No. 75CRD012 (1975).

  3. Coughlin, R. W. & Farooque, M. Nature 279, 301–303 (1979).

    Article  ADS  CAS  Google Scholar 

  4. Coughlin, R. W. & Farooque, M. (IC & E).

  5. Farooque, M. & Coughlin, R. W. Fuel (in the press).

  6. Latimer, W. M. Oxidation Potentials (Prentice-Hall, Englewood Cliffs, 1952).

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FAROOQUE, M., COUGHLIN, R. Anodic coal reaction lowers energy consumption of metal electrowinning. Nature 280, 666–668 (1979).

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