التفاصيل البيبلوغرافية
| العنوان: |
Process Optimization to Avoid Perfluorocarbon Emission During Neodymium Rare Earth Electrolysis in Molten LiF-NdF3-Nd2O3. |
| المؤلفون: |
Gibilaro, M., Remazeilles, C., Massot, L., Chamelot, P. |
| المصدر: |
Journal of The Electrochemical Society; Aug2022, Vol. 169 Issue 8, p1-7, 7p |
| مصطلحات موضوعية: |
PROCESS optimization, ELECTROLYSIS, NEODYMIUM, CRITICAL currents, MANUFACTURING processes |
| مستخلص: |
Influence of Nd2O3 in LiF-NdF3-Nd2O3 melt on carbon anode oxidation was investigated by infra-red spectroscopy and electrochemical techniques to prevent CFX(g) formation during Nd metal production. A gas extractor device was developed to provide fast analysis of the electrochemically produced gas: the carbon anode was only oxidized into CO2(g) until a critical current density was reached. For higher values, CF4(g) and C2F6(g) were also produced. It was associated to diffusion limited current density of NdOF5 4−. To avoid CFX(g) production during the process, the influence of Nd2O3 and temperature on this limiting current density was determined by steady-state voltammetry. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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