The electrochemical deoxidation of metal oxides by calcium using a solid oxide membrane
A Martin, D Lambertin, JC Poignet, M Allibert… - JOM, 2003 - Springer
A Martin, D Lambertin, JC Poignet, M Allibert, G Bourges, L Pescayre, J Fouletier
JOM, 2003•SpringerThe reduction of a metal oxide by calcium in a CaCl 2 melt produces metal and calcium
oxide (CaO) dissolved in the molten chloride. To minimize waste salts, the reacted salts
have to be regenerated. This can be done either by converting CaO to CaCl 2 by
chlorination with Cl 2 and adding calcium metal or by electrochemical deoxidation of CaO. In
the first method, the addition of calcium metal increases the amount of reacted salts, and
consequently the waste salts, while in the second method the quantity of reacted salts …
oxide (CaO) dissolved in the molten chloride. To minimize waste salts, the reacted salts
have to be regenerated. This can be done either by converting CaO to CaCl 2 by
chlorination with Cl 2 and adding calcium metal or by electrochemical deoxidation of CaO. In
the first method, the addition of calcium metal increases the amount of reacted salts, and
consequently the waste salts, while in the second method the quantity of reacted salts …
Abstract
The reduction of a metal oxide by calcium in a CaCl2 melt produces metal and calcium oxide (CaO) dissolved in the molten chloride. To minimize waste salts, the reacted salts have to be regenerated. This can be done either by converting CaO to CaCl2 by chlorination with Cl2 and adding calcium metal or by electrochemical deoxidation of CaO. In the first method, the addition of calcium metal increases the amount of reacted salts, and consequently the waste salts, while in the second method the quantity of reacted salts remains constant. The electrochemical deoxidation of CaO occurs in one step and the produced oxygen is evacuated. This article describes a study of the electrochemical deoxidation of CaO using a solid oxide membrane.
Springer
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