| 钨酸钠三元复配缓蚀剂对模拟海水中碳钢的缓蚀作用 |
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| 引用本文： | 郭强强,董梦悦,侯悦,田会娟.钨酸钠三元复配缓蚀剂对模拟海水中碳钢的缓蚀作用[J].唐山学院学报,2017,30(3):31-34. |
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| 作者姓名： | 郭强强 董梦悦 侯悦 田会娟 |
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| 作者单位： | 唐山师范学院 化学系, 河北 唐山 063000,唐山师范学院 化学系, 河北 唐山 063000,唐山师范学院 化学系, 河北 唐山 063000,唐山学院 环境与化学工程系, 河北 唐山 063000 |
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| 基金项目： | 河北省高等学校科学技术研究青年基金项目（QN2016302）；唐山师范学院科学研究基金项目（2016A09）；唐山师范学院重点建设学科项目（2015XK03） |
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| 摘 要： | 海水的强腐蚀性会导致设备和管道的严重腐蚀,因此开发适用于海水介质的缓蚀剂非常重要。采用失重法对钨酸盐类缓蚀剂进行筛选。实验结果表明:单一的钨酸钠溶液对模拟海水中A3型碳钢的缓蚀率随其浓度的增加而增加,当钨酸钠浓度为1 000mg/L时缓蚀率为50%左右。十二烷基苯磺酸钠和三乙醇胺属于表面活性剂,可降低金属的腐蚀速率。通过正交实验进行复配,得到最佳三元复配缓蚀剂:钨酸钠的浓度为200mg/L,十二烷基苯磺酸钠的浓度为100mg/L,三乙醇胺的浓度为200mg/L,此时得到的复配溶液对碳钢的缓蚀率可达到74.24%。
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| 关 键 词： | 钨酸钠三元复配缓蚀剂 模拟海水 碳钢 缓蚀率 表面活性剂 |
A Study on Corrosion Inhibition Performance of Tungstate Composite Inhibitor in Simulated Seawater |
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| GUO Qiang-qiang,DONG Meng-yue,HOU Yue and TIAN Hui-juan.A Study on Corrosion Inhibition Performance of Tungstate Composite Inhibitor in Simulated Seawater[J].Journal of Tangshan College,2017,30(3):31-34. |
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| Authors: | GUO Qiang-qiang DONG Meng-yue HOU Yue and TIAN Hui-juan |
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| Institution: | Department of Chemistry, Tangshan Normal College, Tangshan 063000, China,Department of Chemistry, Tangshan Normal College, Tangshan 063000, China,Department of Chemistry, Tangshan Normal College, Tangshan 063000, China and Department of Environmental and Chemical Engineering, Tangshan University, Tangshan 063000, China |
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| Abstract: | The strong erosion of seawater can lead to serious damage to equipment and piping and so it is imperative to develop an effective corrosion inhibitor for a seawater cooling system. In this research, the weight loss method is applied to select tungstate inhibitors. The experiment results show that the inhibitory effect of mere sodium tungstate solution on carbon steel in simulated seawater increases with the rise of the solution concentration and the average corrosion rate is about 50% when the sodium tungstate solution is 1 000 mg/L. The surfactants of sodium dodecyl benzene sulfonate and triethanolamine can reduce the corrosion rate of metal. Through orthogonal experiment, the optimal formula of the ternary compound corrosion inhibitor has been obtained: the concentrations of sodium tungstate, sodium dodecyl benzene sulfonate and triethanolamine are 200 mg/L, 100 mg/L and 200 mg/L respectively, and the corrosion inhibition rate of the ternary inhibitor can reach 74.24%. |
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| Keywords: | tungstate composite inhibitor simulated seawater carbon steel corrosion rate surfactant |
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