一种新型四元聚合缓蚀阻垢剂的合成和运行性能评价

以马来酸酐(MA)、丙烯酸(AA)、烯丙基磺酸钠(SAS)和丙烯酸羟丙酯(HPA)为单体,水为溶剂,过氧化氢/次磷酸钠为引发剂,合成了四元聚合缓蚀阻垢剂PMASH。并采用临界pH法、极限碳酸盐法考察了PMASH在不同水质中的运行情况。实验结果表明:当Ca2+和HCO3-均为4 mmol/L时,PMASH的pHc最高可达到9.80,极限碳酸盐硬度可达到7.1 mmol/L,极限碳酸盐碱度可达到6.0 mmol/L,最佳投加量为15 mg/L。热重分析结果显示PMASH耐高温、热稳定性好,可应用于高温水处理系统。

Synthesis and running performance of a new type quadripolymer scale and corrosion inhibitor PMASH

With water as solvent and sodium hypophosphite/hydrogen peroxide as initiator,a novel quadripolymer scale and corrosion inhibitor,denoted as PMASH,is synthesized with maleic anhydride(MA),acrylic acid(AA),sodium acrylsulfonate(SAS) and hydroxyl propyl acrylic(HPA).Its running performance is studied by pH shift method and limited carbonate hardness method.The results indicate that when both and concentrations are 4 mmol/L,the pHc,limited carbonate hardness and limited carbonate basicity can reach 9.80,7.1 mm...