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| 结晶母液蒸馏套用制备对甲苯磺酸的绿色工艺研究 | |
| 引用本文： | 张珍明,王丽萍,张喆,耿平兰,李树安.结晶母液蒸馏套用制备对甲苯磺酸的绿色工艺研究[J].化工时刊,2008,22(1):10-11,27. |
| 作者姓名： | 张珍明 王丽萍 张喆 耿平兰 李树安 |
| 作者单位： | 1. 中国矿业大学环境监测学院,江苏,徐州,221116;淮海工学院化学工程系,江苏,连云港,222005 2. 中国矿业大学环境监测学院,江苏,徐州,221116 3. 淮海工学院化学工程系,江苏,连云港,222005 |
| 基金项目： | 江苏省高校高新技术产业发展项目 |
| 摘 要： | 研究了用蒸馏除水的方法浓缩磺化母液，并与吸收酸混和应用于甲苯磺化制备高纯度对甲苯磺酸。蒸馏出的酸性水用于稀释磺化液结晶出对甲苯磺酸。使加入水和生成水与结晶水、物料夹带水和母液中的水能达到平衡，因而从工艺设计的源头减少废酸的污染。 |
| 关 键 词： | 对甲苯磺酸 磺化 母液蒸馏 绿色工艺 |
| 收稿时间： | 2007-11-06 |
| 修稿时间： | 2007年11月6日 |
Study on the Green Sulfonation Procedure for Preparation p-toluenesulfonic Acid with Recycle Mother Aqueous Distillation |
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| Zhang Zhenming,Wang Liping,Zhang Zhe,Di Pinglan,Li Shuan.Study on the Green Sulfonation Procedure for Preparation p-toluenesulfonic Acid with Recycle Mother Aqueous Distillation[J].Chemical Industry Times,2008,22(1):10-11,27. | |
| Authors: | Zhang Zhenming Wang Liping Zhang Zhe Di Pinglan Li Shuan |
| Affiliation: | Zhang Zhenming, Wang Liping,Zhang Zhe, Geng Pinglan, Li Shuan (1. College of Environmental Monitoring, China University of Mining and Technology, Jiangsu Xuzhou 221116; 2. Department of Chemical Engineering, Huaihai Institute of Technology, Jiangsu Lianyungang 222005) |
| Abstract: | p - toluenesulfonic acid with high purity was prepared by sulfonation of toluene with concentrated acid and absorbed acid, which was obtained from crystal mother aqueous by distillation and absorption with SOs, respectively. The distilled water was added to the sulfonation liquid to obtain p - toluenesulfonic acid crystal. The water balance was built in the process to decrease the disposal of waste acid and pollution from the start of process design. |
| Keywords: | p - toluenesulfonic acid sulfonation mother aqueous distillation green process |
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