Sorption of Gallium from the Alkali Solutions Based on Anionites

D. E. Chirkst, E. A. Cheremisina*, O. V. Cheremisina, and M. A. Ponomareva

St. Petersburg State Mining University, Dvadtsat’ pervaya liniya 2, St. Petersburg, 199106 Russia

*e-mail: ovcheremisina@yandex.ru

Abstract—The sorption of gallium from alkali solutions on various weakly and strongly basic anionites is stud-
ied in dynamic conditions, and the breakthrough dynamic exchange capacity and complete exchange dynamic
capacity are investigated. The D-403 selective anionite is selected. The sorption isotherm of gallate ions on the
D-403 weakly basic anionites is described by the Langmuir equation modified for the ion-exchange equilibrium
and the thermodynamic parameters of the sorption are determined. The method of evaluating the form of situ-
ating gallium in the alkali sodium solution is suggested. The sorption ability series of the anions on the surface
of the solid phase of the D-403 anionite is presented.

Keywords: sorption, gallium, alkali solutions, D-403 anionite, the Langmuir modified equation, sorption ther-
modynamics

DOI: 10.3103/S106782121303005X

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