利用电弧炉粉尘合成ZnO纳米颗粒

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI:10.2298/jmmb211029008b

A. Bui, D. le, T. Nguyen

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引用次数: 0

摘要

本文介绍了以碳酸氨水溶液为浸出剂，对越南某炼钢厂电弧炉粉尘进行湿法冶金处理，得到氧化锌纳米颗粒。采用XRD技术、SEM观察和人工湿化学分析对电炉粉尘进行了表征。结果表明:粉尘中总锌(Zn)含量为42.69 wt.%，主要以锌石- ZnO、单长石- Zn5(OH)8Cl2H2O和菱灰石- ZnFe2O4的形式存在。在碳酸铵浓度为300 g/l、时间为90 min的浸出条件下，当温度为60℃时，浸出效率最高，为85.29%。C，料液比为1/6。经过一系列后续处理，由氢氧化锌- Zn5(CO3)2(OH)6进行热分解，得到了纯度为99.5%、粒径为100 nm的ZnO纳米颗粒。

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Synthesis of ZnO nanoparticles from electric arc furnace dust

This paper presents a hydrometallurgical treatment of electric arc furnace (EAF) dust which was taken from a Vietnamese steelmaking plant to obtain zinc oxide (ZnO) nanoparticles by using aqueous ammoniac carbonate solution as a leaching agent. Characterization of the EAF dust was conducted by XRD technique, SEM observation and manual wet chemical analysis. The results showed that total zinc (Zn) of the dust was 42.69 wt.% and existed mainly in the forms of zincite - ZnO, simonkolleite - Zn5(OH)8Cl2H2O, and franklinite - ZnFe2O4. The leached condition, in which the ammoniac carbonate concentration was 300 g/l and the time was 90 minutes, was found to provide the highest leaching efficiency as 85.29 % when the temperature was fixed at 60?C and the ratio of solid/liquid was 1/6. After some steps of the subsequent treatment, the ZnO nanoparticles with the purity of 99.5 % and the size of 100 nm were obtained from thermal decomposition of zinc carbonate hydroxide - Zn5(CO3)2(OH)6.

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来源期刊

Journal of Mining and Metallurgy Section B-Metallurgy 工程技术-冶金工程

CiteScore

2.00

自引率

40.00%

发文量

审稿时长

2 months

期刊介绍： University of Belgrade, Technical Faculty in Bor, has been publishing the journal called Journal of Mining and Metallurgy since 1965 and in 1997 it was divided in two independent journals dealing with mining and metallurgy separately. Since 2009 Journal of Mining and Metallurgy, Section B: Metallurgy has been accepted in Science Citation Index Expanded. Journal of Mining and Metallurgy, Section B: Metallurgy presents an international medium for the publication of contributions on original research which reflect the new progresses in theory and practice of metallurgy. The Journal covers the latest research in all aspects of metallurgy including hydrometallurgy, pyrometallurgy, electrometallurgy, transport phenomena, process control, solidification, mechanical working, solid state reactions, materials processing, surface treatment and relationships among processing, structure, and properties of materials.