| 湿法磷酸泵材冲刷腐蚀控制因素探讨 |
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| 引用本文： | 董清海 于海洲. 湿法磷酸泵材冲刷腐蚀控制因素探讨[J]. 北京化工大学学报(自然科学版), 1996, 23(4): 59-64 |
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| 作者姓名： | 董清海 于海洲 |
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| 作者单位： | 北京化工大学应用化学系，北京有色金属研究总院 |
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| 摘 要： | 按照把冲刷腐蚀总失重分解为几个组成因素的思路。主要根据在动态湿法磷酸料浆中的冲刷腐蚀试验中与电化学测试结果，探讨了湿法磷酸冲刷腐蚀的控制因素，作出了电腐蚀因素因素控制的结论，同时讨论了在此前提下总刷所促进腐蚀的作用；提出了泵材耐冲刷腐蚀合金化方向应以提高其再钝化能力为主的意见。
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| 关 键 词： | 冲刷腐蚀 湿法磷酸 泵 合金 腐蚀 电化学腐蚀 |
Study on the Control Factor of Erosion-Corrosion of Materials for Pumps in Wet Process Phosphoric Acid |
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| Dong Qinghai,Yu Fuzhou,Wang Jianyun. Study on the Control Factor of Erosion-Corrosion of Materials for Pumps in Wet Process Phosphoric Acid[J]. Journal of Beijing University of Chemical Technology, 1996, 23(4): 59-64 |
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| Authors: | Dong Qinghai Yu Fuzhou Wang Jianyun |
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| Abstract: | Based on the idea that the total weight loss of erosion-corrosion can be divided into several constituent factors, the control factor or erosion-corrosion of materials for pumps in wet process phosphoric acid (WPA) production is discussed mainly according to the results or erosion-corrosion test and electrochemical measurement in WPA slurry under the dynamic state. It is concluded that the control factor is the electrochemical (corrosion) effect. On this premise, the role of accelerating corrosion by erosion is discussed as well. It is suggested that enhancing the repassivation ability of materials for pumps would be the main direction of alloying to resist erosion-corrosion. |
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| Keywords: | erosion-corrosion control factor wet process phosphoric acidl materials for prups |
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