乙酸乙酯-间苯二酚-酸性盐水液液相平衡测定及关联

doi:10.11949/j.issn.0438-1157.20141904

化工学报 ›› 2016, Vol. 67 ›› Issue (4): 1098-1102.DOI: 10.11949/j.issn.0438-1157.20141904

乙酸乙酯-间苯二酚-酸性盐水液液相平衡测定及关联

孔令启¹, 王渊朴², 曹婺², 李玉刚¹

1. 青岛科技大学计算机与化工研究所, 山东青岛 266042;
2. 青岛科技大学化工学院, 山东青岛 266042

收稿日期:2014-12-22 修回日期:2015-09-14 出版日期:2016-04-05 发布日期:2016-04-05
通讯作者: 孔令启
基金资助:
山东省自然科学基金项目(ZR2011BL010)。

Measurement and correlation of liquid-liquid equilibrium data for acetic ether-resorcinol-acid brine system

KONG Lingqi¹, WANG Yuanpu², CAO Wu², LI Yugang¹

1. Research Center for Computer and Chemical Engineering, Qingdao 266042, Shandong, China;
2. Qingdao University of Science and Technology, Qingdao 266042, Shandong, China

Received:2014-12-22 Revised:2015-09-14 Online:2016-04-05 Published:2016-04-05
Supported by:
supported by the Natural Science Foundation of Shandong Province (ZR2011BL010).

摘要/Abstract

摘要：

乙酸乙酯作为萃取剂在酸性盐水环境下萃取间苯二酚。平衡法测定了40℃、101.33 kPa时乙酸乙酯-间苯二酚-酸性盐水准三元体系的液液相平衡数据,实验结果表明间苯二酚的存在增加了乙酸乙酯和水的相互溶解度,降低了萃取效率;盐的存在则降低了乙酸乙酯在水中的溶解度,有利于间苯二酚的萃取。用NRTL模型对实验数据进行了关联,得到了乙酸乙酯-间苯二酚-酸性盐水体系的液液相平衡模型参数,关联结果与实验数据基本吻合。测定的液液相平衡数据可为间苯二酚萃取过程以及间苯二胺水解联产间苯二酚和间氨基苯酚的生产装置的工艺设计提供依据。

关键词: 间苯二酚, 乙酸乙酯, 液液平衡, NRTL模型, 溶剂萃取

Abstract:

Acetic ether was used as solvent for extraction of resorcinol under the environment of acid brine. Liquid-liquid equilibrium (LLE) data of acetic ether-resorcinol-acid brine quasi ternary system were determined at atmospheric pressure (101.33 kPa) and 313 K with the equilibrium method. The experimental data showed that the mutual solubility of acetic ether and water was increased with increasing resorcinol which reduced the extraction effect of the acetic ether on resorcinol, while the solubility of acetic ether in water was reduced in the existence of ammonium sulphate which was good for the extraction process. The experimental data were correlated with NRTL model and parameters were obtained. The calculation results agreed well with the experimental data, indicating that the models used were suitable for the system. The model also provided data for the design of extraction process of m-phenylenediamine hydrolysis for joint production of resorcinol with m-aminophenol.

Key words: resorcinol, acetic ether, liquid-liquid equilibrium, NRTL model, solvent extraction

中图分类号:

O642

孔令启, 王渊朴, 曹婺, 李玉刚. 乙酸乙酯-间苯二酚-酸性盐水液液相平衡测定及关联[J]. 化工学报, 2016, 67(4): 1098-1102.

KONG Lingqi, WANG Yuanpu, CAO Wu, LI Yugang. Measurement and correlation of liquid-liquid equilibrium data for acetic ether-resorcinol-acid brine system[J]. CIESC Journal, 2016, 67(4): 1098-1102.

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乙酸乙酯-间苯二酚-酸性盐水液液相平衡测定及关联

Measurement and correlation of liquid-liquid equilibrium data for acetic ether-resorcinol-acid brine system

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