500 kA电解槽微量元素钒对电流效率的影响  

Impact of trace element vanadium on current efficiency in a 500 kA electrolytic cell

作　　者：游璞 YOU Pu(Alloying Division,Chinalco Guizhou Branch,Guiyang 551405,China)

机构地区：[1]中铝贵州分公司合金化事业部,贵州贵阳551405

出　　处：《有色设备》2025年第2期103-108,共6页Nonferrous Metallurgical Equipment

摘　　要：本文研究了500 kA铝电解槽生产过程中微量元素钒的含量变化对电流效率的影响,旨在优化生产工艺,提升电流效率和产品质量。通过理论计算及工厂试验分析发现,钒含量的增加会显著提高电解质的电阻率,进而降低电流效率。基于此,研究结合生产实践提出了以下优化措施:(1)严格控制氧化铝原料的钒含量;(2)改进电解槽和阳极设计以降低杂质影响;(3)优化电解质成分,维持合理的钒含量水平。研究结果表明,采取上述措施可有效提升电流效率,改善铝电解生产的经济性和稳定性。This paper investigates the change of vanadium content of trace elements in the production process of 500 kA aluminum electrolyzer and its effect on current efficiency,aiming at optimizing the production process and improving current efficiency and product quality.Through theoretical calculations and plant experiments,it is found that the increase of vanadium content will significantly increase the resistivity of the electrolyte,and then reduce the current efficiency.Based on this,the study proposes the following optimization measures in conjunction with production practice:(1)strictly control the vanadium content of alumina raw materials;(2)improve the design of electrolytic cell and anode to reduce the influence of impurities;and(3)optimize the composition of the electrolyte to maintain a reasonable level of vanadium content.The results of the study show that the adoption of the above measures can effectively enhance the current efficiency and improve the economy and stability of aluminum electrolysis production.

关 键 词：500 kA电解槽 电解铝 微量元素钒 电流效率 

分 类 号：TF821[冶金工程—有色金属冶金]