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MECHANISMS OF ACYETIC ACID ADSORPTION ON AMINATED BENTONITES

Kungyrtog bentonite, adsorbent ethylenediammonium, adsorbent hexamethylenediammonium, acetic acid, isothermal adsorption, Langmuir model, Freundlich model, Gibbs energy.

Authors

In this work, the mechanisms of adsorption of acetic acid in natural and aminated bentonites of the Kongyrtog field (Uzbekistan,
Kashkadarya) are studied. The quantitative characteristics of the process of adsorption of acetic acid in solution on adsorbents are
calculated. Adsorption isotherms of acetic acid on aminated clay adsorbents correspond to L-type isotherms. According to the
ability of adsorption of acetic acid on aminated bentonites, it is explained that it can be placed in the series of adsorption activity:
EDB > GDB > CB. The Gibbs energy for the adsorption of acetic acid and adsorbents is -9.714 kJ/mol in KB, -9.792 in EDB,
and -10.341 kJ/mol.