Equilibrium and kinetic parameters of 4-hydroxybenzaldehyde sorption by polyfunctional weak-basic anion-exchanger

Authors

  • А. М. Яцев Yatsev Andrey M. – student, Department of Analytical Chemistry, Voronezh State University, Voronezh
  • О. В. Решетникова Reshetnikova Olga V. – student, Department of Analytical Chemistry, Voronezh State University, Voronezh
  • И. В. Воронюк Voronyuk Iraida V. – Lecturer, Department of Analytical Chemistry, Voronezh State University, Voronezh, e-mail: chem.vrn@mail.ru
  • Т. В. Елисеева Eliseeva Tatiana V. – Lecturer, Department of Analyical Chemistry, Voronezh State University, Voronezh

DOI:

https://doi.org/10.17308/sorpchrom.2015.15/308

Keywords:

anion-exchange resin, 4-hydroxybenzaldehyde, hydroxybenzaldehydes, equilibrium of sorption, kinetics of sorption, chemisorption.

Abstract

The features of 4-hydroxybenzaldehyde sorption by weak-basic anion exchanger Purolite A 830 in
the static conditions have been studied. The estimation of the kinetic curve for aldehyde sorption using a
formal approach has been made, which shows a significant influence of internal diffusion stage on the rate of
sorption. The diffusion coefficients have been calculated. The study of 4-hydroxybenzaldehyde sorption
under equilibrium conditions at temperatures of 298 and 328 K has been carried out. The energy of aldehyde
sorption from aqueous solutions, as well as the enthalpy and entropy of the process have been calculated.

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Published

2018-02-19

Issue

Vol. 15 No. 4 (2015): Sorption and chromatographic processes

Section

Статьи

How to Cite

Equilibrium and kinetic parameters of 4-hydroxybenzaldehyde sorption by polyfunctional weak-basic anion-exchanger. (2018). Sorbtsionnye I Khromatograficheskie Protsessy, 15(4), 571-577. https://doi.org/10.17308/sorpchrom.2015.15/308

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