ОСОБЕННОСТИ АДСОРБЦИИ ХЛОРИДА КАЛЬЦИЯ БИНАРНЫМИ СОРБЕНТАМИ НА ОСНОВЕ ОКСИДОВ ЖЕЛЕЗА, ХРОМА, НИКЕЛЯ И ЦИРКОНИЯ

Abstract

Comparative studies of the sorption of CaCl2 by Fe2O3, NiO, Cr2O3 and ZrO2, as well as binary sorbents obtained from mixed oxides at a molar ratio of 1 : 1 were carried out. The formation of new active centers on the surface of binary sorbents was shown by using the method of mathematical modeling. Those active centers are not the mechanical sum of the active centers of individual oxides that are part of binary ones. The greatest increase in the sorption properties of binary sorbents compared with the additive sum of individual oxides is observed at relatively low concentrations of CaCl2 less than 3 g/dm3.