Phenol extraction with Cyanex 923: Kinetics of the solvent impregnated resin application

Bernhard Burghoff*, Edwin Zondervan, Andre B. de Haan

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

28 Citations (Scopus)

Abstract

In the present work, experimental data concerning the kinetics of phenol extraction with a solvent impregnated resin (SIR) and the description with a kinetic model are presented. Phenol is extracted from aqueous solutions with macroporous polypropylene particles impregnated with Cyanex 923. The rate determining step of the phenol extraction kinetics is identified to be a combination of the complexation between phenol and Cyanex 923 and pore diffusion of phenol inside the SIR. Thus, a model based on chemical reaction and intraparticle diffusion is used to describe the experimental data. Using a sensitivity analysis, it is observed that the diffusivity and the physical equilibrium distribution Kphys have the most pronounced influence on the kinetic model. Increasing the temperature causes an increase of the reaction rate constant and the diffusivity. The kinetic model gives a reasonable fit of the experimentally determined phenol concentration profiles.

Original languageEnglish
Pages (from-to)264-271
Number of pages8
JournalReactive and Functional Polymers
Volume69
Issue number4
DOIs
Publication statusPublished - Apr 2009
Externally publishedYes

Keywords

  • Chromatography
  • Extraction
  • Kinetics
  • Particle
  • Porous media
  • Separations

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