| Name | Cationic resin |
| Synonyms | Cationic resin |
| Use | Use of cation exchange resin is the earliest used in the extraction and separation of antibiotics, vitamin concentration and purification, etc., is also widely used in wastewater treatment. |
Cationic resin is a kind of ion exchange resin. According to the acidity of the functional group, it can be divided into three types:(1) Strong acidity, such as sulfonic acid group, sulfonated coal, sulfonated styrene-divinylbenzene copolymer.