The Dynamics of Sorption of Sulfuric Acid
by Weakly Basic Polyacrylic Anion Exchangers

A. V. Mamchenko and T. V. Kushnir

Dumanskii Institute of Colloid Chemistry and Chemistry of Water, National Academy of Sciences of Ukraine, Kiev, Ukraine

e-mail: taras-ximic@ukr.net

Received March 30, 2008

Abstract—The nonequilibrium dynamics of sorption of sulfuric acid by free base forms of Amberlite IRA-67
and Lewatite VP.OC.1072 weakly basic anion exchangers is studied. It is established that, in hydrodynamic
regimes of filtration, which are typical of OH filters of the first stage of water-desalting plants, the limiting stage
of sorption kinetics is inside diffusion. It is concluded that the process is correctly described by an asymptotic
solution to the inside-diffusion model of sorption dynamics.

DOI: 10.1134/S0036024409050288

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