Extraction of Glyoxylic Acid, Glycolic Acid, Acrylic Acid, and Benzoic Acid with Trialkylphosphine Oxide

Liquid−liquid extraction based on reversible chemical complexation is a novel separation technique that is highly effective and selective for separation of polar organic solutes from aqueous solutions. Equilibria of aqueous solutions of glyoxylic acid, glycolic acid, acrylic acid, and benzoic acid w...

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Bibliographic Details
Published in:Journal of chemical and engineering data 2003-05, Vol.48 (3), p.621-624
Main Authors: Li, Yi, Wang, Yundong, Li, Yuxin, Dai, Youyuan
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Liquid-liquid extraction
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Summary:Liquid−liquid extraction based on reversible chemical complexation is a novel separation technique that is highly effective and selective for separation of polar organic solutes from aqueous solutions. Equilibria of aqueous solutions of glyoxylic acid, glycolic acid, acrylic acid, and benzoic acid with trialkylphosphine oxide (TRPO) in kerosene were investigated. Equilibrium concentrations are given at 298 K. An extraction equilibrium model was used to describe the experimental data. The equilibrium constants were evaluated. Loading of TRPO was calculated.
ISSN:0021-9568
1520-5134
DOI:10.1021/je020174r