Depolarized Gas Anodes for Electrowinning of Metals in Molten Salts

Constant current electrolysis of molten CaCl2-NaCl (70-30 mol %) containing CaO and AgCl at 953 K was carried out with Pt gas anode and a carbon cathode. A novel concept was tested of introducing an oxidizable gas, hydrogen, to depolarize the Pt anode, resulting in the anode potential, and hence the...

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Bibliographic Details
Main Authors: Xiao, Saijun, Mokkelbost, Tommy, Haarberg, Geir M., Ratvik, Arne P., Zhu, Hongmin
Format: Conference Proceeding
Language:English
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Summary:Constant current electrolysis of molten CaCl2-NaCl (70-30 mol %) containing CaO and AgCl at 953 K was carried out with Pt gas anode and a carbon cathode. A novel concept was tested of introducing an oxidizable gas, hydrogen, to depolarize the Pt anode, resulting in the anode potential, and hence the cell voltage, decreasing by 0.3 V when the anode was fed with hydrogen.
ISSN:1938-5862
1938-6737
DOI:10.1149/1.3367928