摘要
为了研究Na_(3)AlF_(6)-AlF_(3)-Al_(2)O_(3)-CaF_(2)-LiF-KF体系的初晶温度,基于130组高可靠性铝电解质初晶温度的文献数据,采用非线性拟合法得到了适用于计算高锂钾复杂铝电解质体系初晶温度的经验公式.采用差热分析法测定了32组铝电解质的初晶温度,与本文中的公式计算值进行对比分析,结果表明,计算值与实验值之间的最大绝对误差仅为2.7℃.该经验公式可用于预测高锂钾铝电解质的初晶温度.
In order to study the liquidus temperatures of Na_(3)AlF_(6)-AlF_(3)-Al_(2)O_(3)-CaF_(2)-LiF-KF system,based on 130 high reliable literature data on liquidus temperatures of aluminum electrolyte,an empirical formula describing liquidus temperature for electrolytes with high content of LiF and KF was derived by nonlinear fitting analysis.The liquidus temperatures of 32 compositions of aluminum electrolytes were determined by differential thermal analysis(DTA).The comparison between experimental values and calculation values confirmed that the maximum error is only 2.7℃.The equation presented in this work can be considered as the most reliable empirical formula for calculating the liquidus temperatures for aluminum electrolytes containing high content of LiF and KF.
作者
陈赫
谭祺
赵天旭
吉尚鑫
商庭瑞
陆泓彬
高炳亮
Chen He;Tan Qi;Zhao Tianxu;Ji Shangxin;Shang Tingrui;Lu Hongbin;Gao Bingliang(School of Metallurgy,Northeastern University,Shenyang 110819,China)
出处
《材料与冶金学报》
CAS
北大核心
2022年第5期335-341,共7页
Journal of Materials and Metallurgy
基金
国家自然科学基金项目(51574070,51434005).
关键词
铝电解
复杂铝电解质
初晶温度
LIF
KF
aluminum electrolysis
complex aluminum electrolyte
liquidus temperature
LiF
KF
