TY - JOUR
AU - Wang, Zhaowen
AB - Abstract Fe-Ni-Al 2 O 3 cermet materials were prepared, and the electrolysis with these anodes were performed in cryolite-based electrolyte consisted of 44NaF-40AlF 3 -8NaCl-5CaF 2 -3Al 2 O 3 (wt%) at 850 °C. The purity of produced aluminium is 97–98%, while the calculated anodic corrosion rate is 18.2 mm/a–24.0 mm/a. The EPMA analysis showed that there is an oxide scale consisting of Fe 2 O 3 and FeAl 2 O 4 on the anode working surface. The homeostasis of dissolution and formation of oxide scale makes the thickness of the oxide scale and the cell voltage stable within a certain range. The dissolution of oxide scale results in the presence of FeF 3 in the electrolyte. By analysis of the corrosion process, it shows that low temperature, high alumina concentration and low CR electrolysis is preferred for using Fe-Ni-Al 2 O 3 inert anodes for aluminium electrolysis.
TI - Aluminium Electrolysis with Fe-Ni-Al 2 O 3 Inert Anodes at 850 °C
JF - High Temperature Materials and Processes
DO - 10.1515/htmp.2011.039
DA - 2011-06-01
UR - https://www.deepdyve.com/lp/de-gruyter/aluminium-electrolysis-with-fe-ni-al-2-o-3-inert-anodes-at-850-c-WmjzwWke2a
SP - 247
VL - 30
IS - 3
DP - DeepDyve
ER -