耐高硬高碱高pH值阻垢剂的研制

Preparation of a Scale Inhibitor Adapting to High Hardness,High Alkalinity and High pH

以水为溶剂 ,氧化还原体系为引发剂 ,马来酸酐 (MA)、2 -丙烯酰胺 -2 -甲基丙基丙基磺酸 (AMPS)、2 -丙烯酰胺 -2 -甲基丙基膦酸 (AMPP)为单体合成了三元共聚物。探讨了该共聚物合率、阻垢性能与聚合条件 ,如单体配比、引发剂量及配比等之间的关系 ,通过静态和动态实验 ,分析了共聚物用于高硬度、高碱度、高 pH值恶劣水质条件下的阻垢。结果表明 ,该共聚物具有很好聚合率 ,适用于恶劣水质条件下的阻垢。

A copolymer was prepared from maleic anhydride, 2 acrylamido 2 methylpropane sulphonic acid and 2 acrylamido 2 methylpropane phosphonic acid. The polymerization was initiated by hypophosphite sodium and peroxide in an aqueous solution. Factors effecting on the polymerization rate, the scale inhibiting efficiency and dispersing ferric oxide ability, such as the ratio of monomers, the ratio of initiator, were investigated. Through static and dynamic scale inbibiting experiment, the scale inhibiting efficiency of the copolymer was also tested under conditions of high hardness,high alkalinity and high pH. The results showed that the copolymer had a good polymerization rate. It was a good scale inhibitor for industrial circular cooling water of high hardness, high alkalinity and high pH.