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Mass Transfer Coefficients for Liquid-Liquid Extraction and the Influence of aqueous phase pH

Publish Year: 1385
Type: Conference paper
Language: English
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NICEC11_049

Index date: 24 April 2007

Mass Transfer Coefficients for Liquid-Liquid Extraction and the Influence of aqueous phase pH abstract

The influence of aqueous phase pH on the rate of liquidliquid extraction was investigated using single drop experiments with mass transfer in either direction and for a range of drop size. The chemical system of tolueneacetone- water was employed. To do this, pH of aqueous phase was adjusted at desired values of 5.5, 6, 6.5, 7, 7.5 and 8. These pH values are around the natural water pH in environment. The increase of pH caused a significant reduction in overall mass transfer coefficient. The rate of mass transfer was also greater for dispersed to continuous phase direction.

Mass Transfer Coefficients for Liquid-Liquid Extraction and the Influence of aqueous phase pH Keywords:

Mass Transfer Coefficients for Liquid-Liquid Extraction and the Influence of aqueous phase pH authors

javad saien

Department of Applied Chemistry, University of Bu-Ali Sina, Hamadan,Iran

Shabnam Daliri

Department of Applied Chemistry, University of Bu-Ali Sina, Hamadan,Iran

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