Evaluation of the Surface Treatment Utilizing KH570 on 304 Stainless Steel Tower Packing: The Effect of Silanization to Modify Tower Packing

IF 2.1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-06-02 Epub Date: 2026-02-04 DOI:10.1002/maco.70116

Gao Sheng Wu, Xu Dong Zou, Rui Zong, Xiao Lei Li, Jia Qi Bian, Xiao Dong Chu, Hao Ling

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Abstract

304 stainless steel is widely used as tower packing in the chemical industry, but its application remains challenging in the purification and separation processes of high-purity systems containing strongly corrosive media. Silanization has been proposed as a novel surface treatment technology for tower packing, can enhance corrosion resistance and improve selective separation performance for specific systems. The optimal processing conditions for silanization with KH570 were determined, significantly improving the packing's corrosion resistance. The results demonstrate that the separation efficiency of the KH570-modified packing for the methylcyclohexane–n-heptane and chlorobenzene-ethylbenzene systems increased by approximately 7%–12%, offering greater operational flexibility. Furthermore, the preliminary application of silanization technology to the surface treatment of stainless steel packing was investigated using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and x-ray photoelectron spectrometer (XPS).

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利用KH570对304不锈钢塔填料进行表面处理的评价：硅烷化对塔填料的改性效果

304不锈钢在化工工业中广泛用作塔填料，但在含强腐蚀性介质的高纯度系统的净化和分离过程中，其应用仍然具有挑战性。硅烷化是一种新型的塔填料表面处理技术，可以提高塔填料的耐腐蚀性和特定体系的选择性分离性能。确定了KH570硅烷化的最佳工艺条件，显著提高了填料的耐蚀性。结果表明，改性填料对甲基环己烷-正庚烷和氯苯-乙苯体系的分离效率提高了约7%-12%，操作灵活性更强。利用扫描电镜（SEM）、x射线能谱仪（EDS）和x射线光电子能谱仪（XPS）对硅烷化技术在不锈钢填料表面处理中的初步应用进行了研究。

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来源期刊

Materials and Corrosion-werkstoffe Und Korrosion 工程技术-材料科学：综合

CiteScore

3.70

自引率

11.10%

发文量

199

审稿时长

1.4 months

期刊介绍： Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention. Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.