氧化钪在nNaF·AlF_3ScF_3熔盐体系中的溶解

Dissolution of Sc 2O 3 in fluoride molten salt

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。

Through 3 factor 3 level orthogonal design, the relationship between the solubility of Sc 2O 3 in n NaF·AlF 3 ScF 3 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 ScF 3 were the major factors which effect the solubility of Sc 2O 3. As temperature increased, the dissolution of Sc 2O 3 increased, but the extent of temperature effect became relatively small. When the molecular ratio of cryolite was 2.1, the content of ScF 3 9%, the solubility of Sc 2O 3 was more than 5%.