| 苯或甲苯萃取己内酰胺和甲基己内酰胺分配系数的测定和预测 |
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| 引用本文： | 龚行楚,吕阳成,骆广生. 苯或甲苯萃取己内酰胺和甲基己内酰胺分配系数的测定和预测[J]. 中国化学工程学报, 2007, 15(4) |
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| 作者姓名： | 龚行楚 吕阳成 骆广生 |
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| 作者单位： | State Key Lab of Chemical Engineering Department of Chemical Engineering Tsinghua University，State Key Lab of Chemical Engineering Department of Chemical Engineering Tsinghua University，State Key Lab of Chemical Engineering Department of Chemical Engineering Tsinghua University，Beijing 100084 China，Beijing 100084 China，Beijing 100084 China |
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| 摘 要： | To get high purity caprolactam is a challenging task in the chemical fiber industry. To date, reports on the prediction of the distribution of caprolactam and its derivative chemicals have been few. In this study, the ex-traction of caprolactam with toluene as the extractant and N-methyl caprolactam with benzene and toluene as the extractants has been carried out. By defining new UNIFAC groups and calibrating related interaction parameters, a UNIFAC method was introduced to predict the equilibrium concentration of caprolactam and methyl caprolactam in toluene or benzene extraction processes. The calculated results fit very well with the experimental data. Using the UNIFAC model, the selectivity of extractants can be predicted.
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Distribution Coefficient of Caprolactam and Methyl Caprolactam Using Benzene or Toluene as Extractants: Experiments and Prediction |
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| GONG Xingchu,L Yangcheng,LUO Guangsheng. Distribution Coefficient of Caprolactam and Methyl Caprolactam Using Benzene or Toluene as Extractants: Experiments and Prediction[J]. Chinese Journal of Chemical Engineering, 2007, 15(4) |
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| Authors: | GONG Xingchu L Yangcheng LUO Guangsheng |
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| Affiliation: | GONG Xingchu,L(U) Yangcheng,LUO Guangsheng |
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| Abstract: | To get high purity caprolactam is a challenging task in the chemical fiber industry. To date, reports on the prediction of the distribution of caprolactam and its derivative chemicals have been few. In this study, the extraction of caprolactam with toluene as the extractant and N-methyl caprolactam with benzene and toluene as the extractants has been carried out. By defining new UNIFAC groups and calibrating related interaction parameters, a UNIFAC method was introduced to predict the equilibrium concentration of caprolactam and methyl caprolactam in toluene or benzene extraction processes. The calculated results fit very well with the experimental data. Using the UNIFAC model, the selectivity of extractants can be predicted. |
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| Keywords: | extraction UNIFAC model caprolactam benzene toluene |
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