INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION

ZHANG Zhigang; XU Shimin; LI Xingang; ZHANG Weijiang

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INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION

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- INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION
- CIESC Journal Issue 10, Pages: 1740-1742(2004)
- 作者机构：
  
  1. 天津大学精馏技术国家工程研究中心,天津,300072
  2. 天津大学化学工程研究所,天津,300072
  3. 长春工业大学化工学院,吉林,长春,130012
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 2004，
  
  Published：25 October 2004
- 稿件说明：
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ZHANG Zhigang, XU Shimin, LI Xingang, et al. INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION[J]. CIESC Journal, 2004, (10): 1740-1742.
DOI：

ZHANG Zhigang, XU Shimin, LI Xingang, et al. INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION[J]. CIESC Journal, 2004, (10): 1740-1742. DOI：

摘要

Abstract

Extractive distillation is an important and useful technique for separating close boiling and azeotropic liquid mixtures.Solvent selectivity is the key to achieving success.In this paper

the relation of solvent selectivity versus temperature for different mixed systems(C6H6+C6H12+DMSO

C6H6+C6H12+DMF

EtOH+EA+DMF+DMSO

C6H6+C6H12+DMF+DMSO) was examined by the modified UNIFAC model

which is a well-tested method to select a solvent for extractive distillation.With increasing temperature

solvent selectivity was decreased.In addition

the influence of temperature on solvent selectivity was set forth for the first time by using the Clausius-Mosotti equation.

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