Synthesis And Application Of The High-Molcular Copolymer P (DMDAAC/AM) In The Refined Sugar

As China's sugar-scale enterprises and the development of the continuous expansion of the toxic polyacrylamide established, efficient, non-toxic type cationic polymer flocculant rapid growth in demand. And dimethy ammonium chloride and acrylamide acrylamide polymer has a low-efficient, safe, and no secondary pollution is the direction of the characteristics of the sugar to meet the needs of clarification process. Therefore, this paper to clarify the process used in the sugar dimethyl ammonium chloride and acrylamide acrylamide polymer cationic organic polymer flocculant Preparation and application of a more in-depth study.The article focuses on the ratio of DMDAAC and AM, the amount of initiator, polymerization time, the polymerization temperature and polymerization factors such as pH of the polymerization reaction. Aqueous solution by free radical polymerization method and through a series of experiments to determine the organic polymer flocculant dimethyl ammonium chloride and acrylamide acrylamide polymer synthesis conditions for the best: polymerization temperature is 80℃; propylene dimethyl ammonium chloride (DMDAAC) and acrylamide (AM) is 6: 1; the addition of (NH₄)₂S₂O₈ is 0.90g/100g, the addition of Na₂SO₃ is 0.30g/100g, the addition of Ce⁴⁺ is 0.45ml/100g; polymerization reaction in the pH is 7.0 ; polymerization reaction time is 6.6 h.With the market-dimethyldiallylammonium chloride comparison, the experimental synthetic copolymer handle the color, turbidity and simple purity were higher than the market-dimethyl The allyl chloride. Study results showed that the two allyl chloride and acrylamide (P (DMDAAC / AM)) is an effective sugar polymer flocculant.