Study on iron-nickel metal anode for aluminium electrolysis
A Fe-43Ni (wt％) alloy made by powder metallurgy and used as anode for aluminum electrolysis, is described in the present paper. Electrolysis with this anode was conducted for ten hours at 850℃in a molten salt consisting of NaF-43.7AlF3-8NaCl-5CaF2-4Al2O3 (wt.％). The anodic current density was 0.75 A/cm2. Electrolysis was carried out smoothly with a fluctuation of the cell voltage within the range of 3.8-4.1 V. Electron Probe Micro-analyzer and X-Ray Diffraction results showed that the film generated on the anodic substrate consisted of iron oxide as the major phase, and with nickel oxide and nickel ferrite as minor phases. The metal anode showed good performance in terms of anti-oxidation and corrosion resistance. The average annual anode wear rate was calculated to be 21 millimeter, and the purity of the aluminum produced was 97-98％.
iron-nickel alloy slowly-consumable metal anode aluminum electrolysis 铁镍合金 金属阳极 铝电解
Shi Zhongning Xu Junli Qiu Zhuxian
School of Materials & Metallurgy,Northeastern University,Shenyang,Liaoning,110004,P.R.China
国内会议
沈阳
英文
47-55
2004-09-08（万方平台首次上网日期，不代表论文的发表时间）