What is the conversion of ion exchange resin?

Take 732, the most commonly used strong acid cation exchange resin for boiler water treatment, as an example, which is convenient for transportation and storage. The factory forms are hydrogen type and sodium type. In practical use, it is often converted into other ion types to meet various needs. For example, strongly acidic cationic resins often react with NaCl and are converted into sodium resins for reuse. During operation, Na+ released from sodium resin exchanges and adsorbs with Ca2+, Mg2+ and other cations in the solution, and these ions are removed. H+ is not released during the reaction, which can avoid the decrease of pH value of the solution and the resulting side effects (such as sucrose conversion and equipment corrosion). After this resin is used in the form of sodium, it can be regenerated with brine (no strong acid). After being converted into sodium type, the strongly acidic resin no longer has strong acidity and strong alkalinity, but it still has other typical properties of these resins, such as strong dissociation and wide working pH range.