Introduction
Ion exchange equipment is a traditional, mature process of desalination equipment, the principle is under certain conditions, relying on the ion exchange agent (resin) with a certain ion and pretreatment of water with the exchange of ions to achieve the same Softening, in addition to alkali, desalination and other functions. For deep desalination, the water resistance can be up to 18MΩ · cm.

working principle
Ion exchange refers to the use of ion exchangers, so that exchange between the exchangeable ions and exchangeable ions and other substances between the regular reversible exchange, resulting in improved water quality and ion exchange agent results do not occur substantial changes in water treatment. Ion exchange can be divided into yang, yin, sodium, weak mixed ions, back to the type of ion, single floating bed, double floating bed exchanger. The use of different characteristics of the exchange of resin, can be softened water, desalination, preparation of high water and industrial wastewater treatment.

Applications
1）Water treatment-ion exchange equipment
Ion exchange resin is in great demand in the field of water treatment, occupying 90% of output of ion exchange resin. It is used in removing ions in water. Ion exchange resin is extensively used in thermal power plant, followed by atomic energy, semiconductors, electronics and so on.
2）Food industry
Ion exchange resin can be used for sugar, monosodium glutamate, wine refining, biological products and other industrial devices.
3）Pharmaceutical industry
Ion exchange resin plays an important role in developing a new generation of antibiotics and improving the quality of the original antibiotics in pharmaceutical industry. The successful development of streptomycin is a prominent example.
4）Synthetic chemistry and petrochemical industry
Acid and alkali are commonly used in esterification, hydrolysis reaction, ester exchange and hydration reaction in organic synthesis.
5）Environment protection
Ion exchange resins have been used in environment protection.
6）Hydrometallurgy and other
Ion exchange resin can be used in separating, concentrating and extracting uranium, rare earth element and precious metal from the depleted uranium ore