| Nd(NO_3)_3-HNO_3-H_2O体系的过量吉布斯自由能和Nd(NO_3)_3-HNO_3-H_2O-HDEHP-AMSCO体系水相中各组分活度系数的计算 |
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| 引用本文： | 肖泰,冯福合,郑载兴.Nd(NO_3)_3-HNO_3-H_2O体系的过量吉布斯自由能和Nd(NO_3)_3-HNO_3-H_2O-HDEHP-AMSCO体系水相中各组分活度系数的计算[J].化学研究与应用,1990(4). |
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| 作者姓名： | 肖泰 冯福合 郑载兴 |
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| 作者单位： | 西北师范大学化学系，西北师范大学化学系，西北师范大学化学系 兰州 730070，兰州 730070，兰州 730070 |
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| 摘 要： | 我们简化了混合电解质溶液过量吉布斯自由能的Pitzer公式。用此简化公式并结合我们以往的工作计算了Nd(NO_3)_3-HNO_3-H_2O体系的过量吉布斯自由能和Nd(NO_3)_3-HNO_3-H_2O-HDEHP-AMSCO体系水相中各组分的活度系数,计算值与实验值均很接近。此工作为镧系金属萃取分离进行热力学分析提供了方便。
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| 关 键 词： | Pitzer公式 过量吉布斯自由能 活度系数 |
CALCULATION OF EXCESS GIBBS FREE ENERGY OF Nd(NO_3)_3-HNO_3-H_2O SYSTEM AND-ACTIVITY COEFFICIENTS OF EACH COMPONENT IN THE AQUEOUS PHASE OF Nd(NO_3)_3-HNO_3-H_2O-HDEHP-AMSCO SYSTEM |
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| Xiao Tai Feng Fuhe Zheng Zaixing.CALCULATION OF EXCESS GIBBS FREE ENERGY OF Nd(NO_3)_3-HNO_3-H_2O SYSTEM AND-ACTIVITY COEFFICIENTS OF EACH COMPONENT IN THE AQUEOUS PHASE OF Nd(NO_3)_3-HNO_3-H_2O-HDEHP-AMSCO SYSTEM[J].Chemical Research and Application,1990(4). |
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| Authors: | Xiao Tai Feng Fuhe Zheng Zaixing |
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| Abstract: | In this pqper, Piezer's formula for excess Gibbs free energy of mixed electrical solutions was simplified, by used of this simplifier and dealing with our preceding work excess Gibbs free energy of Nd(NO_3)_3-HNO_3-H_2O system and activity coefficients of each component in the aqueous phase of Nd(NO_3)_3-HNO_3-H_2O-HDEHP-AMSCO system were calculated, the calculating results are exactly close to the experimental data. Thus, this work offers convenience to thermodynamic analysis for extracting separation of lanthanide metals. |
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| Keywords: | Pitzer's formula excess Gibbs frce cnergy activity coefficient |
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