一种适合于磷系和弱碱性水处理系统的聚合物阻垢剂

Polymeric Scale Inhibitor Suitable for Phosphate-containing or Weakly Alkline Circulating Water System

研究了以水为溶剂、过硫酸盐为引发剂合成的马来酸酐-烯丙基磺酸钠(MA-SAS)聚合物阻垢剂对磷酸钙、锌盐、碳酸钙和硫酸钙垢物的阻垢效果,探讨了介质pH值、Ca2+浓度、温度和阻垢剂浓度对MA-SAS阻垢效果的影响.结果表明,MA-SAS共聚物在较宽pH值范围内对这些垢物均具有良好的抑制作用,既适用于磷系配方的循环水,也可用于中等硬度(160～240mg/L)、弱碱性(pH值8～9)和中等温度(50～60℃)的循环水系统.

The efficiency of polymer maleic anhydridesodium allylsulonats(MASAS) in inhibiting scales of Ca3(PO4)2, zinc salt, and CaCO3, as well as CaSO4 was studied. The watersoluble polymer was prepared by solution polymerization technique with water as solvent and persulfate as initiator. The effects of pH value, polymer concentration, Ca2+ concentration, and temperature were evaluated. The experimental results show that the polymeric scale inhibitor has a good inhibition against the four kinds of scales in a relatively wider range of pH value. The inhibitor is not only suitable for the water system containing phosphate, but also for the circulating water system with calcium concentration160~240 mg/L, pH value8~9, and water temperature 50~60℃.