Ion exchange is a powerful chemical technology, through a reversible chemical reaction, where dissolved ions are removed from solution and replaced with other ions of the same or similar electrical charge. Ion exchange resin facilitates ion exchange reactions. The resin itself is composed of organic polymers that forms a network of hydrocarbons, and ion exchange sites, called”functional group” throughout the matrix. The ion exchange sites attract ions of an opposing charge, which give the ion exchange resin its separation capabilities.
Ion exchange resins are classified into cation exchange resins and anion exchange resins, as well as mixed bed ion exchange resins.
The cation exchange resin can be exchanged with a cation, and the anion exchange resin can be exchanged with an anion. The mixed bed ion exchange resin is a physical mixture of a positive resin and an anion resin, and at the same time removes anions and cations in the water.
Mostly, ion exchange resin could be regenerated to restore its ion exchange ability, and the ion exchange resin regeneration is accomplished through the application of a chemical regeneration solution. Through regeneration, ion exchange resin could deliver consistent results and have a long service life.
Ion exchange resins are widely used in different separation, purification, and decontamination process. The most common examples are water softening and water purification. Besides, it could be used in metal separation, sugar manufacturing, bio-pharmaceuticals, juice purification and so on.
Typical Application Of Ion Exchange Resins
Industrial Water Softening
Metals Extraction and Recovery
Harmful ion removal
Power Generation and Condensate Polishing
Potable Water Treatment
Nuclear Power Generation
Ultrapure Water Production
Purification of Antibiotics and Amino Acid
Removal of Organic Acid
Precious Metal Recovery