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| Effect of CaO Concentration in Molten Salt on Discharging Process of Oxygen Ions |
| Received:December 05, 2019 Revised:December 06, 2019 |
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| DOI：doi：10.3969/j.issn.1007-7545.2020.06.010 |
| KeyWord:graphite anode, molten salt electrolysis, CaO concentration; discharging process of oxygen ions |
| Author | Institution |
| ZHOU Zhong-ren |
昆明理工大学 冶金与能源工程学院 |
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| Abstract: |
| In order to investigate influence of CaO concentration on discharging process of oxygen ions at graphite anode, anodic gaseous component was detected by gas chromatography applying ilmenite as cathode, graphite as anode and equimolar CaCl2-NaCl molten salt as electrolyte with CaO mole concentrations of 0-2%. The results suggest that anodic gases are mixture of CO and CO2 with graphite as anode. CaO concentration has remarkable effects discharging route of O2- significantly. O2- is primarily discharged to form CO when CaO concentration is 0-0.5%. Major product is CO2 as CaO concentration raise to 1%. O2- is discharged to produce CO preferentially when CaO concentration rises to 1.5%-2%. |
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