Description of intraparticle diffusional sorption and desorption processes in ion-exchange sorbents

Physicochemical Processes at the Interfaces
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Abstract

All general effects of ion exchange kinetics can be considered within the framework of a nonlinear phenomenological diffusional model. According to the model, the dependence of intraparticle diffusivity D on the concentration of sorbed (desorbed) ion a is unknown beforehand and, in general, it should be determined from the experiments by solving the so-called inverse problem. Hence, the work considered some important features of this model relating to the sorption–desorption processes.

Keywords

Desorption Process Intra Particle Diffusion Sorp Tion Rigid Skeleton Describe Physico Chemical 

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  1. 1.Vernadsky Institute of Geochemistry and Analytical ChemistryMoscowRussia
  2. 2.Moscow State UniversityMoscowRussia

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