- What is the main applications of polyacrylamide?
- FAQ about polyacrylamide from Chinafloc
- how to test the solid content of cationic polyacrylamide?
- how to test the molecular weitht of cationic polyacrylamide?
- how to test the degree of ion of cationic polyacrylamide?
- How to judge the specific index of polyacrylamide according to the products suffix?
- what is cationic polyacrylamdie,what is the applications?
- Why is the price so different for super absorbent polymer(SAP)from China
- What is nonionic flocculant?what is the application?
- How to choose flocculant?
What is nonionic flocculant?what is the application?
Non ion flocculant, NPAM for short, it is the linear polymer, the molecular weight is between 500-1200 million, the appearance of solid product is white powder, liquid is colorless viscous colloidal, soluble in water, hardly soluble in organic solvents. It should be dissolved at normal temperature, it easily decompose if the temperature is above 150 ℃. Belonge to Non-dangerous, non-toxic, non corrosive. Solid state PAM are hygroscopic, flocculation, adhesion, resistance reduction, thickening, and good stability.
Due to the nonionic flocculant is without ionic functional groups, so the PH value and salt have a little influence to the aflocculation performance, under acidic conditions, flocculation effect is better than anionic flocculant, the floc strength is stronger than anionic flocculant.
1,mainly used for solid-liquid seperation precess,including sedimentation,clarification,thickening,concentrationand sludge dewatering.application lines:municipal sewage,papermaking industry,food processing industry, petrochemical industry, metallurgical industry, mineral processing industry, dyeing wastewater treatment and sugar industry and various industrial wastewater treatment. If the Sewage shows acidic, we often use nonionic polyacrylamide with polyaluminium chloride and other inorganic flocculants , with fast settlement speed and good treatment effect.
2, in the paper industry can be used for paper dry strength agent, retention agent, filter aid.
3, Used in the fiber slurry (asbestos cement products) and insulating board.
4.Used for clarify agent for mine wastewater and coal washing wastewater in mining and coal industry. In the Centrifugalseparation of tailings washing ,the sedimentation and filtration process of coal slime , nonionic polyacrylamide can increase coal recovery rate and filtration velocity. In metal smelting process, it can improve the separation efficiency
adding non-ionic polyacrylamide NPAM in the Leachateand residue after flotation and smelting.
5, for the treatment of dyeing wastewater, leather wastewater, oily wastewater.
6, in phosphoric acid purification, it can helps to seperate gypsum in wet phosphoric acid process.
7, for the water treatment flocculant of tap water factory
8, the textile industry additives
For textile sizing, it can improve the slurry adhesion effect , penetration effect and desizing performance if adding some chemical pulp mixed by nonionic polyacrylamide and other agent, improving antistatic performance, reducing mortar fleck, reducing sizing rate.
9, chemical grouting agent
In the construction industry, especially in the construction process of high strength building for the dam, foundation, tunnel lamp, we often use nonionic polyacrylamide (95%) with methylene bis acrylamide solution (5%) as chemical grouting agent, it can plays the role of strengthening coagulation effect.
10, soil water-keeping agent
Non ionic polyacrylamide can plays a water-keeping agent in soil water sand, green hill, the sand solidification dust and other fields
11, oil plugging agent
The non ion polyacrylamide can be used as oil plugging agent mixed with lignocellulose with adding some other chemical additives.