| 水—巯基乙酸—异辛醇三元体系液液平衡数据的测定与关联 |
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| 引用本文： | 徐 伟,李 星,尹小军,王文彬,苏佳伟,程苏琴,刘 颖,林 军. 水—巯基乙酸—异辛醇三元体系液液平衡数据的测定与关联[J]. 南京师范大学学报, 2016, 0(4). DOI: 10.3969/j.issn.1672-1292.2016.04.015 |
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| 作者姓名： | 徐 伟 李 星 尹小军 王文彬 苏佳伟 程苏琴 刘 颖 林 军 |
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| 作者单位： | 南京师范大学化学与材料科学学院,江苏 南京 210023 |
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| 摘 要： | 在温度分别为20 ℃、30 ℃、40 ℃下,常压测定了水—巯基乙酸—异辛醇三元体系的液液平衡数据,得到了三元体系的共轭相组成并绘制出相平衡曲线,确定了30 ℃为最佳萃取温度. 实验数据用UNIQUAC和NRTL模型进行关联,关联值与实验值吻合良好. 求得了溶剂对溶质的选择性系数,验证了以异辛醇为溶剂,采用液液萃取的方法分离巯基乙酸—水体系是完全可行的.
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| 关 键 词： | 巯基乙酸 异辛醇 液液平衡 |
Determination and Correlation of Liquid-Liquid Equilibrium Data forWater-Thioglycolate-Isopropanol Ternary System |
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| Xu Wei,Li Xing,Yin Xiaojun,Wang Wenbin,Su Jiawei,Cheng Suqin,Liu Ying,Lin Jun. Determination and Correlation of Liquid-Liquid Equilibrium Data forWater-Thioglycolate-Isopropanol Ternary System[J]. Journal of Nanjing Nor Univ: Eng and Technol, 2016, 0(4). DOI: 10.3969/j.issn.1672-1292.2016.04.015 |
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| Authors: | Xu Wei Li Xing Yin Xiaojun Wang Wenbin Su Jiawei Cheng Suqin Liu Ying Lin Jun |
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| Affiliation: | School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210023,China |
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| Abstract: | In this paper,the data of the liquid-liquid equilibrium of Water-Thioglycolate-Isopropanol Ternary System are determined at 30 ℃,40 ℃,50 ℃ and ordinary atmospheric pressure. The phase compositions and the phase equilibrium curve of this system are obtained. 30 ℃ is proved to be the best temperature for the extraction process. The experimental data are correlated by using UNIQUAC and NRTL models. The agreement between calculated data and experimental data is satisfactory. The selectivity coefficients of the solvent to solutes are calculated,and the results show that it is entirely feasible to separate Water-Thioglycolate system by using liquid-liquid extraction technique with isopropanol as solvent. |
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| Keywords: | Thioglycolate isopropanol liquid-liquid equilibrium |
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