Fluidization of ion exchangers by regeneration agents

Abstract

We have established the relationships between the expansion of the layer of ion exchangers (weakly basic—Amberlite IRA 67, weakly acidic—Lewatit CNP 80, and strongly acidic—KU 2–8) and the rate, temperature, and concentration of regenerating agents (for anion exchanger—sodium hydroxide solution, for cation exchangers—sulfuric acid solutions). We have found the equations of the relationships between the expansion of the layer of ion exchangers and the rate, temperature, and concentration of regenerating agents, which makes it possible to a priori determine the mode of regeneration of ion exchangers in the fluidized layer.