氧化钪在nNaF·AlF₃-ScF₃熔盐体系中的溶解

来源期刊：中国有色金属学报1999年第3期

论文作者：路贵民 刘学山

文章页码：624 - 626

关键词：氧化钪； 氟化物熔盐； 溶解

Key words：Sc₂O₃; fluoride molten salt; dissolution

摘    要：通过三因子三水平正交实验设计，研究了Sc₂O₃在nNaF·AlF₃-ScF₃熔盐体系中的溶解度与熔盐成分及温度的关系。结果表明，冰晶石的分子比与ScF₃的含量是影响溶解度的主要因素，ScF₃含量的增加与分子比的降低有利于Sc₂O₃的溶解。随温度的升高，Sc₂O₃的溶解度增大，但温度影响显著性相对较小。在冰晶石分子比为2.1、ScF₃含量9%时，Sc₂O₃ 的溶解度可达5%以上。

Abstract: Through 3 factor-3 level orthogonal design, the relationship between the solubility of Sc₂O₃ in nNaF·AlF₃-ScF₃ molten salt and the composition of the molten salt and temperature was studied. The results showed that the molecular ratio of cryolite and the content of ScF₃ were the major factors which effect the solubility of Sc₂O₃. As temperature increased, the dissolution of Sc₂O₃ increased, but the extent of temperature effect became relatively small. When the molecular ratio of cryolite was 2.1, the content of ScF₃9%, the solubility of Sc₂O₃ was more than 5%.