Corrosion of Zinc Ferrite Based Inert Anodes in AlF3-NaF-Al2O3 Melts Under Conditions of Anodic Polarization
- Resource Type
- Academic Journal
- Authors
- Yu Xianjin; Zhang Lipeng; Dong Yunhui; Zhao Zengdian
- Source
- 稀土学报(英文版) / JOURNAL OF RARE EARTHS. 24(z2):352-354
- Subject
- ZnFe2O4-based materials
inert anode
anodic polarization
corrosion behaviors
- Language
- Chinese
- ISSN
- 1002-0721
ZnFe2O4-based inert anodes were made to conduct the aluminum electrolysis tests. The corrosion behaviors of the inert anodes were examined and discussed. Experiment results prove that: (1) ZnFe2O4-based inert anodes are good corrosion resistant to AlF3-NaF-Al2O3 melts under the conditions of anodic polarization; (2) High anodic current density(>1.5 A·cm-2), high alumina concentration and low ratio of NaF/AlF3 in the molten salts will be the most important conditions for using inert anode.