Apparatus for simultaneous generation of alkali metal species an

Chemistry: electrical and wave energy – Apparatus – Electrolytic

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204 68, 204245, 204247, 204290R, 204291, 204292, 204293, 204294, 204295, 204252, C25C 302, C25C 318, C25C 700

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048044482

ABSTRACT:
A process and apparatus for electrochemically separating alkali oxides to simultaneously generate oxygen gas and liquid alkali metals in a high temperature electrolytic cell is provided. The high temperature electrolytic cell comprises a cathode in contact with an alkali ion conducting molten salt electrolyte separated from the anode by an oxygen vacancy conducting solid electrolyte. Alkali metals separated in the alkali metal reducing half cell reaction are useful as reducing agents in the direct thermochemical refining of lunar metal oxide ores to produce metallic species and alkali oxides, and the alkali oxides may then be recycled to the high temperature electrolytic cell.

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