Synergistic effect of corrosion inhibition of tobacco rob extract and potassium iodide

doi:10.11894/1005-829x.2015.35(12).057

INDUSTRIAL WATER TREATMENT ›› 2015, Vol. 35 ›› Issue (12): 57-60. doi: 10.11894/1005-829x.2015.35(12).057

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Synergistic effect of corrosion inhibition of tobacco rob extract and potassium iodide

Guo Yong^1,2, Gao Meidan¹, Wang Yan³, Wang Hefang¹, Hu Rongbin¹

1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China;
2. CNOOC Tianjin Chemical Research & Design Institute, Tianjin 300131, China;
3. Quality Supervision and Test Station No. 42, Tianjin 300384, China

Received:2015-11-06 Online:2015-12-20 Published:2015-12-26

烟柴杆提取物与碘化钾的缓蚀协同效应

郭勇^1,2, 高美丹¹, 王艳³, 王荷芳¹, 胡荣彬¹

1. 河北工业大学化工学院, 天津 300130;
2. 中海油天津化工研究设计院, 天津 300131;
3. 天津市质量监督检验站第四十二站, 天津 300384

通讯作者: 王荷芳,电话:13702018761,E-mail:1307250644@qq.com。 E-mail:1307250644@qq.com
作者简介:郭勇(1978-),高级工程师。电话:15902280857,E-mail:whf0618@163.com。

Abstract

Abstract:

The corrosion inhibition capacity of tobacco rob extract for N80 steel in hydrochloride solutions and its synergistic effect with potassium iodide are investigated. The results show that tobacco rob extract has excellent corrosion inhibition efficiency,and the inhibition efficiency increases further when tobacco rob extract combines with potassium iodide. From the electrochemical polarization curve,before and after the combination,the tobacco rob extract are both a kind of mixed-type corrosion inhibitor and the inhibition mechanism is geometric covering effect. By fitting the weight loss data,the result shows that after the combination of tobacco rob extract with potassium iodide,the adsorption on the surface of N80 steel obeys the Langmuir's adsorption isotherm equation.

Key words: tobacco rob extract, potassium iodide, corrosion inhibition capacity, synergistic effect

摘要：

研究了烟柴杆提取物在盐酸介质中对N80钢的缓蚀性能及其与碘化钾复配的协同效应。结果表明,烟柴杆提取物具有良好的缓蚀性能,与碘化钾复配后缓蚀性能进一步提高。电化学极化曲线表明,复配前后烟柴杆提取物均为混合型缓蚀剂,其作用机理为几何覆盖效应。对失重数据进行拟合,结果表明烟柴杆提取物与碘化钾复配后在N80钢表面的吸附服从Langmuir吸附等温方程。

关键词: 烟柴杆提取物, 碘化钾, 缓蚀性能, 协同效应

CLC Number:

TQ085+.4

Guo Yong, Gao Meidan, Wang Yan, Wang Hefang, Hu Rongbin. Synergistic effect of corrosion inhibition of tobacco rob extract and potassium iodide[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(12): 57-60.

郭勇, 高美丹, 王艳, 王荷芳, 胡荣彬. 烟柴杆提取物与碘化钾的缓蚀协同效应[J]. 工业水处理, 2015, 35(12): 57-60.

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URL: https://www.iwt.cn/EN/10.11894/1005-829x.2015.35(12).057

https://www.iwt.cn/EN/Y2015/V35/I12/57

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烟柴杆提取物与碘化钾的缓蚀协同效应

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Synergistic effect of corrosion inhibition of tobacco rob extract and potassium iodide

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