|Table of Contents|

[1] Pan Xiaomei, Xiao Guomin, Yang Zhicai,. A new combination process of distillation with salt extractionfor separating organic solvent-water azeotropes [J]. Journal of Southeast University (English Edition), 2004, 20 (2): 226-228. [doi:10.3969/j.issn.1003-7985.2004.02.021]
Copy

A new combination process of distillation with salt extractionfor separating organic solvent-water azeotropes()
Share：

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
20
Issue:
2004 2
Page:
226-228
Research Field:
Chemistry and Chemical Engineering
Publishing date:
2004-06-30

Info

Title:
A new combination process of distillation with salt extractionfor separating organic solvent-water azeotropes
Author(s):
Pan Xiaomei1;  Xiao Guomin1;  Yang Zhicai2
1Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
2Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China
Keywords:
azeotrope;  separation;  bath distillation;  salt extraction
PACS:
TQ026.3
DOI:
10.3969/j.issn.1003-7985.2004.02.021
Abstract:
A novel process which can purify the organic solvents from their azeotropes with water is proposed. In this process, water can be drained off both from bottom and overhead of tower at the same time, and the organic solvent is concentrated in the tower and accumulated in the middle vessel at last. So the progress is time-shortened and energy-saving. The product purity is 99. 8% and the product yield is more than 99. 5%. Simulation of liquid-liquid equilibrium(LLE)and the equipment operation data agree well with the experiment.

References:

[1] Furter W F. Production of fuel-grade ethanol by extractive distillation [J]. Separation and Purification Methods, 1993, 22(1): 1-21.
[2] Duan Z T. Research on salt extraction distillation[J]. Petrochemical Technology, 1980, 35(6): 350-353.
[3] Furter W F. Salt effect in distillation: a technical review[J]. The Chemical Engineer, 1968, 20(6): 173-177.
[4] Chen C C, Evans L B. A local composition model for excess Gibbs energy of aqueous electrolyte system [J]. American Institute of Chemical Engineering Journal, 1986, 32(3): 444-447.
[5] Pan X M. Study on salt effect and its application[D]. Tianjin: Department of Chemical Engineering, Tianjin University, 2003.(in Chinese)

Memo

Memo:
Biography: Pan Xiaomei(1974—), female, doctor, lecturer, panxiaomei@seu.edu.cn.
Last Update: 2004-06-20