Anionic polyacrylamide flocculant is suitable for pulp with positive charge on particle surface. Compared with cationic PAM suspensions, anionic PAM flocculants have higher molecular weight. And because the ionic groups in the same molecule repel each other, the molecular extension in water is relatively large, so it has good particle flocculation performance. They can be used effectively for settling and separating mineral suspensions. When the treated water is a suspension with a pH of neutral to basic and rich in inorganic substances, it is suitable for the production process such as magnesium oxide smelting, zinc smelting, phosphoric acid and so on. In addition to being used in the treatment of wastewater such as smelting blast furnace aluminum processing papermaking river sand and stone washing, it can also be used as settlement accelerant in water treatment. Anionic polyacrylamide is also suitable for primary treatment of municipal sewage.
The main purpose of anionic polyacrylamide in coal washing is to reduce ash, remove impurities, improve quality and make it suitable for users. Simply put, coal washing is for coking, that is, combining different components of coal into blocks for coking. Coal washing process is a process of washing different grades of coal according to the original composition of coal.
