| 稀土氧氯化物在冰晶石—氧化铝熔体中的溶解度 |
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| 引用本文： | 任万忠,陈小平,于维谦,刘素兰.稀土氧氯化物在冰晶石—氧化铝熔体中的溶解度[J].中国稀土学报,2001,19(4):343-346. |
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| 作者姓名： | 任万忠 陈小平 于维谦 刘素兰 |
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| 作者单位： | 1. 烟台大学化学工程系,
2. 中国科学院长春应用化学研究所, |
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| 摘 要： | 用等温饱和法测定了单一稀土氧氯化镧（LaOCl)和混合稀土氧氯化物（REOCl)在冰晶石（Na3AlF6)-氧化铝（Al2O3）熔体中的溶解度。结果表明：LaOCl和REOCl的溶解度变化规律一致，即其溶解度随温度升高而增大；随着冰晶石分子比增加而增大；当有4．0％（质量分数）Al2O3存在时，其溶解度相应减少。
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| 关 键 词： | LaOCl REOCl 冰晶石 氧化铝 溶解度 稀土氧氯化物 稀土铝合金 |
| 文章编号： | 1000-4343(2001)04-0343-04 |
| 修稿时间： | 2000年12月20 |
Solubility of Rare Earth Oxychloride in Melt of Cryolite |
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| REN Wan zhong ,CHEN Xiao ping ,YU Wei qian ,LIU Su lan.Solubility of Rare Earth Oxychloride in Melt of Cryolite[J].Journal of the Chinese Rare Earth Society,2001,19(4):343-346. |
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| Authors: | REN Wan zhong CHEN Xiao ping YU Wei qian LIU Su lan |
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| Institution: | REN Wan zhong 1,CHEN Xiao ping 1,YU Wei qian 2,LIU Su lan 2 |
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| Abstract: | The solubility of single rare earth element oxychloride (LaOCl) and mixing rare earth elements oxychloride(REOCl) in the melt of cryolite(Na 3AlF 6) alumina(Al 2O 3) was determined with isothermal saturation method. The effects of temperature and molecular ratio of cryolite and Al 2O 3 on the solubility were discussed. The results show that the solubility change of LaOCl and REOCl is coincident, that is, the solubility of LaOCl increases with the increasing of temperature and the molecular ratio of cryolite. When there exists 4 0% (mass fraction) Al 2O 3, the solubility decreases. |
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| Keywords: | rare earths LaOCl REOCl cryolite alumina solubility |
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