摘要
采用等温饱和法研究了Y2O3在NaF-AlF3-LiF熔盐体系中995~1115℃范围内的溶解平衡及溶解度随温度和NaF/AlF3摩尔比变化的规律,建立了溶解度与温度及NaF/AlF3摩尔比之间的一次回归方程。结果表明:在995~1115℃范围内,Y2O3在NaF-AlF3-LiF熔盐体系中的溶解平衡时间不低于40 min;同时,Y2O3在体系中的溶解度随温度升高和NaF/AlF3摩尔比增大均增加;995~1115℃及NaF/AlF3摩尔比2.3~2.9范围内Y2O3溶解度的回归方程拟合度超过90%。
The dissolution equilibrium of Y2O3 and its solubility variation laws with temperature and NaF/AlF3 molar ratio were studied with isothermal saturation method in NaF-AlF3-LiF molten salt system at 995~1115℃.The first-order regression equation of solubility with temperature and NaF/AlF3 molar ratio was established.The results show that the dissolution equilibrium time of Y2O3 in NaF-AlF3-LiF molten salt system is not less than 40 min at 995~1115℃.Meanwhile,the solubility of Y2O3 in the system increases both with the increase of temperature and NaF/AlF3 molar ratio.The fitness of the regression equation of Y2O3 solubility exceeds 90%under the conditions of 995~1115℃temperature and 2.3~2.9 NaF/AlF3 molar ratio.
作者
王旭
曾建阳
蔡伯清
冷欣伟
廖春发
WANG Xu;ZENG Jian-yang;CAI Bo-qing;LENG Xin-wei;LIAO Chun-fa(Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China)
出处
《稀有金属与硬质合金》
CAS
CSCD
北大核心
2020年第3期29-32,共4页
Rare Metals and Cemented Carbides
基金
国家自然科学基金(51864018,51564015)。
