| 低浓度下己内酰胺-水-硫酸铵-苯体系的液液平衡问题 |
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| 引用本文： | 姜文选,车五一,王晓理.低浓度下己内酰胺-水-硫酸铵-苯体系的液液平衡问题[J].当代化工,2003,32(4):196-197,201. |
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| 作者姓名： | 姜文选 车五一 王晓理 |
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| 作者单位： | 1. 辽宁石油化工大学,石油化工分院,辽宁,抚顺,113001
2. 抚顺石化公司石化一厂研究所,辽宁,抚顺,113008 |
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| 摘 要： | 介绍了在己内酰胺废水中萃取回收己内酰胺的过程中，测定了4套己内酰胺—水—硫酸铵—苯体系的液液平衡数据(水相己内酰胺质量分数小于13％)。实验结果表明，用苯从废水中萃取回收己内酰胺时，pH在2～5．7范围内，pH值升高对回收有利。同时提出了一个简单的关联式并成功地关联上述平衡数据，已用于萃取塔的设计计算。
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| 关 键 词： | 液液平衡 己内酰胺 己内酰胺废水 |
| 文章编号： | 1671-0460(2003)04-0196-03 |
Liqllid- Liquid Equilibrium of Caprolactam- H2O - (NH4)2SO4 - C6H6 System at Low Concentrations |
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| JIANG Wen xuan,CHE Wu yi,WANG Xiao li.Liqllid- Liquid Equilibrium of Caprolactam- H2O - (NH4)2SO4 - C6H6 System at Low Concentrations[J].Contemporary Chemical Industry,2003,32(4):196-197,201. |
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| Authors: | JIANG Wen xuan CHE Wu yi WANG Xiao li |
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| Abstract: | This artical introduced the extraction process of recycle caprolactam from caprolactam waste water and at the same time measured 4-Liqllid-Liquid Equilibrium of Caprolactam- H 2O-(NH 4) 2SO 4-C 6H 6 system (water phase saprolactam mass fraction less than 13 %). The result shows: in the extraction process for the recovery of recycle caprolactam from waste water , C 6H 6 as extraction solvent, when the Value of pH was 2 to 5.7, with the increase of the Value of pH, the recoveryrate increased; at the same time, in the paper, a simple correlation formnla was adcpted for preceding equilibrium data and has been used for the design calculation of extraction tower. |
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| Keywords: | Liquid-liquid equilibrium Caprolactam Caprolactam waste water |
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