高锂、钾电解质对电解铝生产的影响与改进措施

Effect of high potassium and lithium electrolyte on aluminum reduction production and improvement measures

在铝电解生产过程中,长期使用高钾、锂的氧化铝会导致电解质中钾、锂富集,对电解过程产生影响。通过分析高钾、锂盐电解质对电解铝生产产生的影响,研究钾、锂盐对电解过程的影响机理,提出了降低钾、锂盐影响的措施。工业实践结果表明,提高电解质分子比可抵消部分钾、锂盐带来的不利影响,在电解槽大修期间,采用电解质置换可以达到迅速降低电解质钾、锂含量的目的,并且耗能较少,是一种快速降低钾、锂盐影响的有效方法。

In the process of aluminum reduction,the enrichment of potassium and lithium in the electrolyte by using high potassium and lithium content alumina as material has a big impact on aluminum reduction.The improve measures were put forward by analyzing the effect of high potassium and high lithium electrolyte on aluminum reduction and studying their mechanism.The results of industrial practice show that it can improve the adverse effects of high potassium and lithium by increasing the molecule ratio of electrolyte.It is an effective method to rapidly reduce the influence of high potassium and lithium by electrolyte replacement which can rapidly reduce the content of potassium and lithium in the electrolyte and it consume less energy.