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2018 | OriginalPaper | Chapter

Dechlorination of Zinc Oxide Dust by Microwave Roasting with RSM Optimization

Authors : Aiyuan Ma, Tingfang Xie, Guojiang Li, Xuemei Zheng, Libo Zhang, Jinhui Peng

Published in: 9th International Symposium on High-Temperature Metallurgical Processing

Publisher: Springer International Publishing

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Abstract

A new microwave roasting technology for the removal of Cl from zinc oxide dust is proposed in this paper. The effect of important parameters, such as roasting temperature, holding time and stirring speed, were investigated and the process conditions were optimized using response surface methodology (RSM). The experimental results show that zinc oxide dust dechlorination rate can reach more than 95.66% and meet the requirements of wet smelting electrolysis when controlling the stirring speed of 60 r/min,roasting temperature of 650 ℃, holding time of 30 min. In addition, the effect of roasting temperature and holding time on removal efficiency of Cl was most significant. As a result, the Cl content was decreased without the risk of pollution. This makes it as a good choice for a more ecological treatment of zinc secondary resources.

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Metadata
Title
Dechlorination of Zinc Oxide Dust by Microwave Roasting with RSM Optimization
Authors
Aiyuan Ma
Tingfang Xie
Guojiang Li
Xuemei Zheng
Libo Zhang
Jinhui Peng
Copyright Year
2018
Book
9th International Symposium on High-Temperature Metallurgical Processing

Print ISBN: 978-3-319-72137-8

Electronic ISBN: 978-3-319-72138-5

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-72138-5_68

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