Measurement and prediction of vapor-liquid equilibria for systems containing dimethyl sulfoxide,<i>N,N</i>-dimethylformamide and water

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Measurement and prediction of vapor-liquid equilibria for systems containing dimethyl sulfoxide,N,N-dimethylformamide and water

更新时间：2025-12-10

- Measurement and prediction of vapor-liquid equilibria for systems containing dimethyl sulfoxide,N,N-dimethylformamide and water
- CIESC Journal Issue 11, (2010)
- 作者机构：
  
  北京化工大学化学工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2010，
  
  Published：05 November 2010
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李果. Measurement and prediction of vapor-liquid equilibria for systems containing dimethyl sulfoxide,N,N-dimethylformamide and water[J]. CIESC Journal, 2010, (11).
DOI：

李果. Measurement and prediction of vapor-liquid equilibria for systems containing dimethyl sulfoxide,N,N-dimethylformamide and water[J]. CIESC Journal, 2010, (11). DOI：

摘要

Abstract

Vapor pressure data of binary and ternary systems of dimethyl sulfoxide (DMSO)-N

N-dimethylformamide (DMF)

DMSO-H2O

and DMSO-DMF-H2O were measured at various temperature and concentrations by using a quasi-static ebulliometer method. The experimental data of the binary systems were correlated by NRTL model

and the resulting binary parameters were used to predict the vapor pressure data for the ternary system with good accuracy. Furthermore

the isobaric vapor-liquid equilibrium (VLE)of DMSO-DMF-H2O systems was predicted by NRTL model. It is showed that with the addition of small amount of DMF the shift of VLE curve is insignificant

implying its negligible effect on the distillation separation of DMSO-H2O mixture. Hence

DMF may be utilized as a stabilizer in the distillation separation process of DMSO-H2O system.

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Measurement and prediction of vapor-liquid equilibria for systems containing dimethyl sulfoxide,N,N-dimethylformamide and water

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摘要

Abstract

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