Anionic polyacrylamide (APAM)
Introduction
Anionic polyacrylamide (APAM) appears as white powder with a molecular weight ranging from 3 million to 25 million. It has good water decomposition properties and can be dissolved in water and insoluble in organic solvents. The effective pH value range is 6 to 10. It has the characteristics of a high polymer electrolyte in a neutral alkaline medium, is sensitive to salt electrolytes, and can cross-link with high-valent metal ions to form an insoluble gel.
| Anionic polyacrylamide（APAM） | ||||
| Model | Dissolution Time | Ionization degree | Molecular weight | Applications |
| 1825 Bestsellers account for 70-80% |
≤60Min | 25 | 16~18million | Generally used in conjunction with PAC in the flocculation and sedimentation phase of wastewater treatment in industrial, municipal, and manufacturing enterprises, it is the best-selling and most widely used basic product on the market. |
| 1880 | ≤60Min | 29 | 13~15million | Suitable for sand washing, coal washing, and mineral processing industries with high production volumes, high on-site wastewater concentration (around 35%~60%), and insufficient reaction distance and time for reagents. (Special cases, specifically for difficult problems, but with limitations) |
| 1890 | ≤60Min | 33 | 6~8million | High-concentration sludge water (over 60%), such as piling sludge and tunnel mud. |
| 1810 | ≤90Min | 10 | 10~12million | Suitable for belt filter press processes in situations with large wastewater treatment volumes and insufficient dissolution time (e.g., coal washing, sand washing, and mineral processing industries). |
| 1815 | ≤90Min | 15 | 14~15million | The product performs the same as the 1810 model, but requires a smaller dosage. It is suitable for industries with water quality where the water contains fine impurities, such as coal washing wastewater, sand washing wastewater, and tailings wastewater. |
| 1832 | ≤45Min | 32 | 15~17million | Tailings treatment applicable to rare metal mineral development |
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