华南理工大学学报(自然科学版) ›› 2017, Vol. 45 ›› Issue (10): 34-38,45.doi: 10.3969/j.issn.1000-565X.2017.10.005

• 化学化工、能源 • 上一篇    下一篇

甲基异丁基甲酮-苯酚-邻苯二酚-水液液相平衡数据测定与关联

陈赟 王慧敏 熊康宁 李理波   

  1. 华南理工大学 传热强化与过程节能教育部重点实验室∥化学与化工学院,广东 广州 510640
  • 收稿日期:2017-02-03 修回日期:2017-03-20 出版日期:2017-10-25 发布日期:2017-09-01
  • 通信作者: 陈赟(1976-),男,博士,副教授,主要从事高浓煤化工含酚废水处理研究. E-mail:yunchen@scut.edu.cn
  • 作者简介:陈赟(1976-),男,博士,副教授,主要从事高浓煤化工含酚废水处理研究.
  • 基金资助:
    国家自然科学基金资助项目(21506066);广州市珠江科技新星项目(2011J2200056);华南理工大学中央高校基本科研业务费重点资助项目(2015ZM046,2014ZZ0057)

Determination and Correlation of Liquid-Liquid Equilibrium Data of Methyl Isobutyl Ketone-Phenol-Catechol-Water

CHEN Yun WANG Hui-min XIONG Kang-ning LI Li-bo   

  1. Key Laboratory of Heat Transfer Enhancement and Energy Conservation of Ministry of Education∥School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2017-02-03 Revised:2017-03-20 Online:2017-10-25 Published:2017-09-01
  • Contact: 陈赟(1976-),男,博士,副教授,主要从事高浓煤化工含酚废水处理研究. E-mail:yunchen@scut.edu.cn
  • About author:陈赟(1976-),男,博士,副教授,主要从事高浓煤化工含酚废水处理研究.
  • Supported by:
    Supported by the the National Natural Science Foundation of China(21506066) and the Guangzhou Project of the Science and Technology New Star of Pearl River(2011J2200056)

摘要: 为获得工业操作温度下甲基异丁基甲酮萃取高浓煤化工含酚废水中酚类物质及溶剂回收的过程模拟和设计基础数据,测定了在常压下、70℃时甲基异丁基甲酮 - 苯酚 -邻苯二酚 - 水四元体系的液液相平衡数据,并用 Hand 方程和 Othmer-Tobias 方程验证了数据一致性. 文中还利用 NRTL 和 UNIQUAC 模型对所测实验数据进行热力学关联,采用模拟软件回归得到二元交互作用参数. 结果表明,两种模型关联计算得到的计算值与实验值吻合良好,模型计算的相对均方根偏差均小于 0. 02,说明两个模型回归得到的二元交互作用参数均能对实验数据进行精确预测. 因此无论是从防堵塞还是从提高萃取效率角度,甲基异丁基甲酮在较高温度下的萃取应用均具有很好的工业价值.

关键词: 甲基异丁基甲酮, 苯酚, 邻苯二酚, 液液相平衡, NRTL 模型, UNIQUAC 模

Abstract: In order to obtain the basic data of the process simulation and design of both the extraction of the phenolic compounds from the highly-concentrated phenolic wastewater in coal chemical industry by using methyl isobutyl ke- tone (MIBK) and the corresponding solvent recycling at an industrial operating temperature,the liquid-liquid equilibrium (LLE) data of a MIBK-phenol-catechol-water quaternary system were measured at 70 ℃ under the atmospheric pressure,and the reliability of the LLE data was ascertained by using the Hand and Othmer-Tobias equations.Moreover,the experimental data were thermodynamically correlated by adopting the NRTL and UNIQUAC models,and binary interaction parameters were calculated by using simulation software.The results show that the calculated data based on the NRTL and UNIQUAC models accord well with the measured data,and the root-mean-square-deviations (RMSD) of the two models are less than 0. 02,which means that the binary inte- raction parameters obtained through the two models can be used to precisely predict the LLE data.Therefore,it can be concluded that the MIBK extraction at high temperatures is of good practical value in industry from the per- spectives of anti-blockage and extraction efficiency.

Key words: methyl isobutyl ketone, phenol, catechol, liquid-liquid equilibrium, NRTL model, UNIQUAC model

中图分类号: