亚铵法制浆过程中碳钢蒸球的腐蚀行为与防腐蚀措施

中国腐蚀与防护学报

1989, Vol. 9

Issue (3): 240-248

研究报告

本期目录 | 过刊浏览

亚铵法制浆过程中碳钢蒸球的腐蚀行为与防腐蚀措施

吴解生;杨德庆

西北轻工业学院;西北轻工业学院

THE CORROSION BEHAVIOR OF ROTARY SPHERICAL DIGESTER IN NEUTRAL AMMONIUM SULFITE COOKING AND CORROSION CONTROL

Wu Jiesheng and Yang Deqing (Northwest Institute of Light Industry)

全文: PDF(1298 KB)

摘要: 在亚铵法制纸浆蒸煮过程中升温到120℃附近时,碳钢蒸球内壁将由活化转为钝化。钝化膜表层为亚硫酸亚铁铵结晶层,里层为铁的氧化物层。活化碳钢的表面大部份是疏松多孔的Fes层。对影响碳钢钝化的因素也进行了研究。根据碳钢在亚铵法蒸煮时的腐蚀特性,在纸厂现场试验了控制蒸煮液pH、设置防滑钉和快速升温等三种简易的防腐蚀措施,使用这些方法可使蒸球腐蚀率降到0.2mm/y以下。

Abstract：Conversion of the mild steel surface from active to passive state took place during heating of ammonium sulfite cooking. The results of surface analyses indicated that under passive conditions, a passive film was formed on the steel surface in ammonium sulfite liquors. The film consists of double layers, the outer layer being(NH_4)_2Fe(SO_3)_2·H_2O crystals; and the inner layer, iron oxide. Under active conditions,a loose mixture which was mostly FeS was formed on the steel surface. Several environmental effects on passivation were also investigated. Three simple corrosion prevention techniques were tried in the pulp mill, by which the corrosion rate of rotary spherical digester can be controlled under 0.2mm/y.

收稿日期: 1989-06-25

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引用本文:

吴解生;杨德庆. 亚铵法制浆过程中碳钢蒸球的腐蚀行为与防腐蚀措施[J]. 中国腐蚀与防护学报, 1989, 9(3): 240-248.
. THE CORROSION BEHAVIOR OF ROTARY SPHERICAL DIGESTER IN NEUTRAL AMMONIUM SULFITE COOKING AND CORROSION CONTROL. J Chin Soc Corr Pro, 1989, 9(3): 240-248.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1989/V9/I3/240

[1] 轻工业部造纸研究所情报室,亚铵法制浆的腐蚀与防腐蚀,(1977)
[2] 杭州大学化学系分析化学教研室,分析化学手册(一),化学工业出版社,P.8
[3] U.R.Evans,《金属的腐蚀与氧化》:机械工业出版社,P.112

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