中文摘要：

采用差热分析法测定KCl-NaCl-NaF-（SiO2）体系的初晶温度，根据测定的数据得出了KCl-NaCl-NaF-（SiO2）熔盐体系初晶温度的回归方程，分析了组元NaF对KCl-NaCl-NaF-（SiO2）体系初晶温度的影响。结果表明：KCl-NaCl-NaF-（SiO2）体系初晶温度随着组元NaF摩尔含量的增加而增大，同时通过对熔盐的X射线衍射分析及各物质间反应的热力学分析，表明SiO2对KCl-NaCl—NaF体系初晶温度影响很小。

英文摘要：

The initial crystallization temperatures of the KCl-NaCl-NaF-（SiO2 ） system were measured with DTA, regression equation about initial crystallization temperature of the system was gained according to the data measured. The influence of NaF on initial crystallization temperature was analysed. The results indicate that the initial crystallization temperatures of KCl-NaCl-NaF-（SiO2 ） system increases with increasing of NaF content, At the same time, it show that the influence of SiO2 on initial crystallization temperatures of KCl-NaCl-NaF system isn＇t obvious by X-ray diffraction and thermodynamic analysis.