Study on the scale-forming mechanism of magnesium phosphate by polyepoxysuccinic acid based on solution conductivity method

IF 2.3 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Anti-corrosion Methods and Materials Pub Date : 2023-12-05 DOI:10.1108/acmm-07-2023-2851

Huihong Feng, Jianxiang Zhao, Jiarui Hou, Huixia Feng

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引用次数: 0

Abstract

Purpose

This study aims to investigate the influence of polyepoxysuccinic acid sodium (PESA), a green antiscalant, on the nucleation, crystallization and precipitation of magnesium phosphate.

Design/methodology/approach

The conductivity method was used to investigate the maximum relative supersaturation of magnesium phosphate across various PESA dosages. Subsequently, a magnesium phosphate scale was prepared using the static scale inhibition method (GB/T16632-1996) and then analyzed via scanning electron microscopy.

Findings

The findings showed that PESA extends the induction period of magnesium phosphate crystallization, reduces crystal growth rate and elevates the solution’s relative supersaturation. Notably, PESA exerts a low dosage effect on inhibition of the magnesium phosphate scale, with the optimal dosage identified at 10 mL. Scanning electron microscopy revealed that PESA dispenses a dispersing effect on the magnesium phosphate scale, generating numerous concave, convex and deeper pores on the scale particles’ surface, and thereby significantly enhancing the surface area, especially when using an antiscalant with variable dosages.

Originality/value

This study sheds new light on the impact of PESA, a green antiscalant, on the crystallization and precipitation of magnesium phosphate, thus paving the way for the development of enhanced and eco-friendly scale inhibition strategies in future applications.

查看原文本刊更多论文

基于溶液电导率法的聚氧琥珀酸磷酸镁结垢机理研究

目的研究绿色抗垢剂聚氧琥珀酸钠(PESA)对磷酸镁成核、结晶和沉淀的影响。设计/方法/方法:采用电导率法研究磷酸镁在不同PESA剂量下的最大相对过饱和度。随后，采用静态阻垢法(GB/T16632-1996)制备磷酸镁阻垢剂，并通过扫描电镜对其进行分析。结果表明:PESA延长了磷酸镁结晶的诱导期，降低了结晶的生长速率，提高了溶液的相对过饱和度。值得注意的是，PESA对磷酸镁水垢的抑制作用较小，最佳剂量为10 mL。扫描电镜结果显示，PESA对磷酸镁垢具有分散作用，在磷酸镁垢颗粒表面产生大量凹、凸和更深的孔隙，从而显著增加表面积，特别是在使用可变剂量的抗垢剂时。原创性/价值本研究揭示了绿色阻垢剂PESA对磷酸镁结晶和沉淀的影响，从而为未来应用中开发增强型和环保型阻垢策略铺平了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Anti-corrosion Methods and Materials 工程技术-冶金工程

CiteScore

2.80

自引率

16.70%

发文量

审稿时长

13.5 months

期刊介绍： Anti-Corrosion Methods and Materials publishes a broad coverage of the materials and techniques employed in corrosion prevention. Coverage is essentially of a practical nature and designed to be of material benefit to those working in the field. Proven applications are covered together with company news and new product information. Anti-Corrosion Methods and Materials now also includes research articles that reflect the most interesting and strategically important research and development activities from around the world. Every year, industry pays a massive and rising cost for its corrosion problems. Research and development into new materials, processes and initiatives to combat this loss is increasing, and new findings are constantly coming to light which can help to beat corrosion problems throughout industry. This journal uniquely focuses on these exciting developments to make essential reading for anyone aiming to regain profits lost through corrosion difficulties. • New methods, materials and software • New developments in research and industry • Stainless steels • Protection of structural steelwork • Industry update, conference news, dates and events • Environmental issues • Health & safety, including EC regulations • Corrosion monitoring and plant health assessment • The latest equipment and processes • Corrosion cost and corrosion risk management.