The main application of amphoteric polyacrylamide (Chinafloc AM PAM)
Amphoteric polyacrylamide due to molecular containing cationic and anionic groups, hydrolytic copolymerization. The advantage is that it has the characteristics of common cationic flocculant. Used for strong acid leaching ore or recovery of valuable metals from acidic catalysts containing metals. Amphoteric ionic is not a mixture of anionic and cationic. If the use of cationic polyacrylamide and anionic polyacrylamide will react to produce precipitation. So amphoteric ion products are ideal. Amphoteric polyacrylamide contains cationic and anionic groups, it has the characteristics of the use of general cationic flocculant. Cationic polyacrylamide and anionic polyacrylamide used together will react to produce precipitation. So amphoteric ion products are ideal.
Zwitterionic polyacrylamide product characteristics and application field
1) Used for sludge dewatering according to the nature of sludge can choose the corresponding model of the product, can effectively in the sludge into the pressure filter before sludge dewatering, dehydration, flocculation, non-stick filter cloth, pressure filter is not scattered, flow mud cake thick, dehydration efficiency is high, mud cake moisture content is below 80%.
2) Used for the treatment of domestic sewage and organic wastewater, the product in the compatibility or alkaline media are positive, so the sewage suspended particles with negative charge for flocculation precipitation, clarification is very effective. Such as the production of grain alcohol wastewater, papermaking wastewater, waste water of urban sewage treatment plant, beer wastewater, gourmet powder factory wastewater, sugar water, high organic content Waste water, waste water feed, textile printing and dyeing wastewater, etc., with cationic polyacrylamide than with anionic, nonionic polyacrylamide or inorganic salts effect is several times or tens times higher, because this kind of wastewater with negatively charged.
3) Used for the treatment of tap water with river water as the source of flocculant, less dosage, good effect, low cost, especially with inorganic flocculant compound use effect is better, it will become the treatment of the Yangtze River, Yellow River and other watershed of the tap water plant efficient flocculant.
4) Strengthening agent and other auxiliaries for paper making. Improve the retention rate of filler, pigment and paper strength.
5) For oil field additives, such as clay anti-swelling agent, oil field acidification thickener.
6) Used for textile sizing agent, size stable performance, less falling pulp, fabric breakage rate is low, cloth smooth.
In general, amphoteric polyacrylamide is widely used in municipal sewage treatment plants, breweries, food factories, tanneries, paper mills, petrochemical plants, oil fields, metallurgy, chemical industry and cosmetics and other sludge dewatering fields.
1, flocculation: PAM can make suspended material through electric neutralization, bridge adsorption, flocculation.
2, adhesion: through mechanical, physical, chemical action, play the role of adhesion.
3, resistance reduction: PAM can effectively reduce fluid friction resistance, adding trace PAM in water can reduce resistance by 50-80%.
4, thickening: PAM in neutral and acid conditions have thickening effect, when the PH value of PAM is more than 10 easy hydrolysis. Thickening will be more pronounced with a semi-reticular structure.