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Oxidative destruction of anionite AV-17×8 using the Fenton reaction

M. M. Kozlova, V. F. Markov, L. N. Maskaeva

Abstract


The kinetic studies of AV-17×8 strongly basic anionite’s oxidative destruction using the Fenton reaction have been carried out. The effect of the process’s temperature and the concentration of catalysts of iron(II) sulfate or copper(II) sulfate on the oxidation of anion-exchange resin with hydrogen peroxide is estimated. With an increase in temperature in the range of 323–348 K, a regular increase in the effective rate constant of oxidative anionite destruction is observed when using iron(II) sulfate by 1.5 times, and when using copper(II) sulfate – by 22 times. It was found that the obtained values of the activation energy of the anion exchanger’s oxidation with the addition of copper(II) sulfate are 124.3–115.7 kJ/mol and are characteristic of the process proceeding in the kinetic region. The nature of the change in the surface morphology of the anionite granules in the process of oxidative decomposition has been revealed.


Keywords


anion exchanger AV-17×8; hydrogen peroxide; Fenton process; process rate constant; activation energy

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References


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DOI: https://doi.org/10.15826/chimtech.2021.8.4.06

Copyright (c) 2021 M. M. Kozlova, V. F. Markov, L. N. Maskaeva

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Chimica Techno Acta, 2014-2021
ISSN 2411-1414 (Online)