通过对冰晶石—氧化铝—氧化钪系电解质进行五因子一次回归正交实验,求出了其初晶温度受Al2O3、AlF3、CaF2、MgF2、Sc2O3等5个因素影响的函数关系。研究表明,上述5个因素对电解质初晶温度的影响程度,由高到低依次为:Sc2O3、MgF2、Al2O3、AlF3、CaF2。每1%Sc2O3平均降低初晶温度8 219℃。因此Sc2O3的加入可以显著的降低电解温度,起到节能降耗的作用。 Through a one-time orthogonal regression experiment of cryolite-alumina-scandia electrolyte, the primary temperature of the cryolite is obtained as a function of 5 factors including Al2O3, AlF3, CaF2, MgF2 and Sc2O3. The results show that the influence of the above five factors on the primary crystal temperature of the electrolyte is Sc2O3, MgF2, Al2O3, AlF3 and CaF2 in descending order. Each 1% Sc2O3 average lower primary crystal temperature 8 219 ℃. Therefore, the addition of Sc2O3 can significantly reduce the electrolysis temperature, play a role in saving energy and reducing consumption.