高效复合型循环水缓蚀阻垢剂的构建与性能研究

Study on the Formulation and Performance of High-efficiency Composite Corrosion and Scale Inhibitor

文章对循环水缓蚀剂、阻垢剂进行了筛选,对缓蚀剂间、阻垢剂间的协同作用进行了系统研究,利用各单剂间的协同效应将多种缓蚀剂、阻垢剂进行复配,优化出了高效复合型缓蚀阻垢剂配方并进行了性能测定。结果表明,PBTCA相比于HPAA和HEDP具有更优异的缓蚀性能,PBTCA+乙酸锌、HEDP+乙酸锌、PBTCA+HEDP+乙酸锌三元复配体系相比于单一缓蚀剂均呈现出优异的缓蚀性能。PBTCA与HPMA、PBTCA与AMPS两两之间存在明显的阻垢协同效应,而AMPS与HPMA不存在协同效应。优化配方的腐蚀率为0.0126 mm/a,缓蚀率为98.65%,阻垢率为93.52%,该优化配方的阻垢缓蚀性能优异,且含磷含锌量较低,属于低磷、低锌的环保配方。

Corrosion inhibitor as well as scale inhibitor was selected for circulating water in the paper. Moreover, interactions between them were evaluated systematically and formulation of composite corrosion and scale inhibitor was optimized. The results indicated that PBTCA shows greater inhibitory performance than HPAA and HEDP. Furthermore, compared for one inhibitor, greater inhibitory performance exhibits in PBTCA＋zinc acetate inhibitors, HEDP＋zinc acetate inhibitors, PBTCA＋HEDP＋zinc acetate inhibitors. There is a significant cooperative effect between PBTCA and HPMA, PBTCA and AMPS, while this effect don＇ indicate between AMPS and HPMA. The corrosion rate, inhibitive efficiency and scale inhibiting ratio of optimized formulation is 0.0126 mm/a, 98.65 % and 93.52 % respectively. The optimized formulation shows excellent inhibitory performance. More importantly, it is low phosphorus content, low zinc content and environmental formulation.