黏泥剥离剂(EOT)的筛选与性能评价

Screening and capability evaluation of slime stripping agent(EOT)

通过与循环冷却水常用阳离子型黏泥剥离剂1427比较,筛选出一种复合黏泥剥离剂(EOT),该黏泥剥离剂由聚氧乙烯醚类表面活性剂与渗透剂T复配而成。实验结果表明:EOT的黏泥剥离性能良好,黏泥剥离作用时间可达24 h;其性能基本不受水中pH和Ca2+浓度变化的影响;与缓蚀阻垢剂的配伍性好,不会对循环冷却水系统造成影响,能够作为新型黏泥剥离剂替代1427应用于循环冷却水系统中。

Compared with cationic slime stripping agent 1427 ,which was commonly used for circulating cooling water, a kind of compound slime stripping agent （EOT） has been screened out. It is combined with polyoxyethylene ether type surfactant and penetrating agent T. The experiment results show that EOT has good slime stripping capa- bility ,whose slime stripping reaction time can reach 24 h. Its capability can be barely affected by the changes of pH or concentration of Ca2＋ in water. It has good compatibility when it is used with corrosion and scale inhibitors, and has no influence on circulating cooling water systems. EOT, as a new type of slime stripping agent, can be used for substituting 1427 in circulating cooling water systems.