利用电导率法研究聚环氧琥珀酸的阻垢性能

随着“绿色化学”的发展, 防腐阻垢剂也逐步趋向环境友好型. 通过电导率法探讨了不同温度及浓度下聚环氧琥珀酸(polyepoxysuccinic acid, PESA)的阻碳酸钙垢、碳酸钡垢和硫酸钡垢的性能. 结果表明: PESA的阻垢性能良好, 且随着浓度的增加, 其阻碳酸钙垢和硫酸钡垢的性能也不断增强; PESA阻碳酸钡垢的性能随其浓度的增加先增强后减弱, 并在40 mg/L时达到峰值; 随着温度的升高, PESA阻碳酸钙垢的性能逐渐减弱, 而阻碳酸钡垢和硫酸钡垢的性能逐渐增强. 实验结果证明, PESA是一种优良的阻垢剂, 适用于在一般温度下阻碳酸钙、硫酸钙及硫酸钡型的垢. 此外, 电导率法具有操作简便、快捷的特点, 适用于针对以上几种垢的阻垢性能研究.

Anti-scale performance of polyepoxysuccinic acid with conductivity measurement

With the proposal and development of green chemistry, corrosion inhibitors tend to be environmental friendly. This paper explores the anti-scale performance of polyepoxysuccinic acid (PESA) on CaCO₃ scale, BaCO₃ scale, BaSO₄ scale at different temperatures and different concentrations with conductivity measurement. The results showed that the ability of anti-scale performance of PESA was good. With the increasing of its concentration, the anti-scale performances of PESA on CaCO₃ and BaSO₄ continued to strengthen, while BaCO₃ decreased after the concentration rised to 40 mg/L. With temperature increasing, its anti-scale performance of CaCO₃ scale decreased, while BaCO₃ scale and BaSO₄ scale increased. Therefore, PESA is an excellent anti-scale inhibitor suitable for inhibiting CaCO₃, CaSO₄, and BaSO₄ at normal temperature of the factory. Moreover, the conductivity measurement is simple and fast, and it can be used in exploring the anti-scale performance of scale inhibitors.