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Separation Science and Technology Volume 49, 2014 - Issue 18
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Extraction

Extraction of Phenol by Toluene in the Presence of Sodium Hydroxide

Zheng LiParticulate Fluids Processing Centre, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria, Australia
,
Kathryn A. MumfordParticulate Fluids Processing Centre, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria, Australia
,
Kathryn H. SmithParticulate Fluids Processing Centre, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria, Australia
,
Yong WangParticulate Fluids Processing Centre, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria, Australia
&
Geoff W. StevensParticulate Fluids Processing Centre, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria, AustraliaCorrespondence[email protected]
Pages 2913-2920 | Received 26 Jun 2014, Accepted 05 Aug 2014, Published online: 02 Sep 2014
 
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Abstract

Phenol is a good model compound to study extraction of alkaloids as its acidity constant is close to that of many alkaloids, for example, morphine. In addition, extraction of phenol is important environmentally as it is a water pollutant. In this study the distribution ratio of neutral phenol and total phenol between water and toluene with varying pH and varying concentration of sodium hydroxide is determined and discussed. The phase equilibrium is modelled by the symmetric electrolyte nonrandom two-liquid model and the calculated values agree well with the experimental results.

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