铜在福州地热水中的腐蚀热力学

中国腐蚀与防护学报

1987, Vol. 7

Issue (2): 147-152

研究报告

本期目录 | 过刊浏览

铜在福州地热水中的腐蚀热力学

林开涵;卓存真;马良

福州大学;福州大学;福州大学

A STUDY OF CORROSION THERMODYNAMICS OF COPPER IN FUZHOU GEOTHERMAL WATER

Lin Kaihan Zhuo Cunzhen and Ma Liang(Fuzhou University)

全文: PDF(503 KB)

摘要: <正> 引言福州地区蕴藏有丰富的地热资源,在开发中需要充分考虑地热水对金属设备的腐蚀问题。本文作者拟用M.Pourbaix创立的电位-pH图,从热力学角度探讨金属在本地区地热水中的腐蚀倾向。本文取铜作为研究对象,以市区东北部GW_2井的地热水作为介质。该井水温68℃;pH7.4;水质属Cl~--SO_4~(2-)-Na~+类型,经抽样分析,含量大于1ppm的有K~+、Na~+、Ca~(2+)、Fe~(2+)、Cl~-、SO_4~(2-)、HCO_3~-、CO_3~(2-)、F~-。对金属腐蚀作用较大的为Cl~-(90.04ppmSO_4~(2-)(146.97ppm)、HCO_3~-(57.97ppm)和CO_3~(2-)(4.80ppm)。因为地热水温高于25℃,故需取高温下的热力学数据绘制出高温的E-pH图,以进行判断。我们使用BASIC语言编写铜地热水系统E-pH图的电算程序,应用APPLEⅡ微机处理数据和绘图,并测出铜在地热水中的自然腐蚀电位,讨论其腐蚀倾向。

Abstract：The authors attempt to explore the corrosion tendency of metals in Fuzhou geothermal water with fhe aid of potential-pH diagram from the view of thermodynamics. This article reports the study of copper-geothermal water system. A programme has been worked out for using BASIC language to calculate the high temperature thermodynamic data on APPLE Ⅱ microcomputer, and the E-pH diagram of this system has been drawn with DXY-800 plotter. Simultaneously, the practical corrosion potential of copper in Fuzhou GW2 well geothermal water has been determined. The results show that in this water, a Cu_2O film probably grows on the surface of copper when the temperature is below 318K, and a CuO film when the temperature is above 318K. Both are situated in the passive. region.

收稿日期: 1987-04-25

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引用本文:

林开涵;卓存真;马良. 铜在福州地热水中的腐蚀热力学[J]. 中国腐蚀与防护学报, 1987, 7(2): 147-152.
. A STUDY OF CORROSION THERMODYNAMICS OF COPPER IN FUZHOU GEOTHERMAL WATER. J Chin Soc Corr Pro, 1987, 7(2): 147-152.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1987/V7/I2/147

[1] 梁春馀;王魁,化学通报,(5) ,44(1977)
[2] 易宪武,昆明化工学院学报,(3) ,58(1982)
[3] Griss, C. M.; et. al., J. Am. Chem. Soc., 88, 5385(1964)
[4]#12
[5] Latimer, W. M., Oxidation Potentials, 2nd Edition, New York, 361～363(1953)
[6] Connick, R. E.; Powell, R. E, J. Chem. Phys., 21, 2206(1953)
[7] 物理化学数据简明手册(第二版),周振华译,上海科技出版社,916(1959)
[8] Bianchi, G.; Longhi, P., Corrosion Science, 13, 853(1973)
[9] 黄据谦.中南矿冶学院学报,(2) ,48(1981)
[10] Pourbaix, M., Lectures on Electrochemical Corrosion, New York, 305(1973)

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