Conversion of Sulfocationite from \({\text{NH}}_{4}^{ + }\) Form to H+ Form

The conversion of sulfocationite from the \({\text{NH}}_{4}^{ + }\) form to the H⁺ form is studied. It is shown that when using concentrated solutions of strong mineral acids (nitric, sulfuric), the conversion is ineffective. In order to achieve efficient conversion to the H⁺ form, it is recommended to treat the sulfocationite in the \({\text{NH}}_{4}^{ + }\) form in two stages: first with a sodium salt solution to convert it to the intermediate Na⁺ form, then with a strong mineral acid solution to obtain the sorbent in the H⁺ form. An equation is proposed for calculating the specific reagent consumption required to achieve a certain degree of the sorbent conversion.