| 影响曼尼希碱型酸化缓蚀剂性能的因素 |
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| 引用本文： | 卢永周,李海娟,马智国,宋吉锋,孟凡宁.影响曼尼希碱型酸化缓蚀剂性能的因素[J].石化技术与应用,2014(4):302-306. |
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| 作者姓名： | 卢永周 李海娟 马智国 宋吉锋 孟凡宁 |
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| 作者单位： | [1] 陕西国防工业职业技术学院,陕西西安710302 [2] 西安石油大学化学化工学院,陕西西安710065 [3] 中海石油（中国）有限公司湛江分公司研究院,广东湛江524057 |
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| 摘 要： | 采用静态失重法研究了曼尼希碱型酸化缓蚀剂缓蚀性能的影响因素,采用扫描电子显微镜研究和分析了N 80钢片表面的腐蚀情况,还采用能谱法研究了N 80钢片腐蚀后组成的变化情况。结果表明,氯化钠、Fe3+质量浓度增大时腐蚀速率增大,缓蚀剂用量增大时腐蚀速率减小,盐酸含量增加时腐蚀速率增大,接触时间延长时腐蚀速率增大,温度降低时腐蚀速率减小;当缓蚀介质用量为500 mL,盐酸、缓蚀剂质量分数分别为15%,1.0%,90℃下处理4 h,N 80钢片的腐蚀速率为3.9887 g/(m2·h),可满足SY/T 5405—1996对酸化缓蚀剂一级品的质量要求。
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| 关 键 词： | 曼尼希碱型酸化缓蚀剂 缓蚀性能 静态失重法 扫描电子显微镜 能谱法 |
Research on effect factors of performance of Mannich base corrosion inhibitor |
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| Affiliation: | LU Yong - zhou ,LI Hai - juan ,MA Zhi - guo ,SONG Ji - feng ,MENG Fan - ning (1. Shanxi Defence Industry Professional Technology Institute,Xi＇an 710302, China; 2. College of Chemistry and Chemical Engineering, Xi＇ an Shiyou University, Xi＇ an 710065, China ; 3. Research Institute of Zhanjiang Branch, CNOOC,Zhanjiang 524057, China) |
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| Abstract: | The effect factors of performance of Mannich base corrosion inhibitor were investigated by a static gravimetrie method, and the surface cor rosion and element composition change of N 80 steel sheet were analyzed and studied by scanning elec tron microscopy and X ray photoelectron spectros copy respectively. The results showed that the corro sion rate increased with the increase of the mass concentration of NaCl and Fe3＋ , content of hydro chloric acid and corrosion time. The corrosion rate decreased with the increase of corrosion inhibitor level and the decrease of corrosion time. When N 80 steel sheet was treated at 90 ℃ for 4 h under the con dition of corrosion inhibiting medium 500 mL, mass fraction of hydrochloric acid 15% and mass fraction |
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| Keywords: | Mannich base corrosion inhibitor cor-rosion inhibiting behavior static gravimetry scanningelectron microscope X- ray photoelectron spectros-copy |
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