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2024 | OriginalPaper | Chapter

Efficient Extraction of Cd in Zn Recovery Process by Wet Leaching of Zn-Rich Dust

Authors : Yan Li, Xuefeng She, Jingsong Wang, Zeming Wang, Qingguo Xue

Published in: Rare Metal Technology 2024

Publisher: Springer Nature Switzerland

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Abstract

This study develops a green and efficient hydrometallurgical process for the recovery of Zn and Cd from Zn-rich dust after pyrometallurgical treatment of iron and steel metallurgical dust. The feasibility of separating Zn, Cd, and Fe in the leaching system was confirmed by thermodynamic analysis. In the acid leaching process, dilute H2SO4 is used as the leaching agent, Zn and Cd are leached and recovered in the liquid in the form of Zn2SO4 and Cd2SO4. This article studies the leaching behavior of Cd and Bi under different experimental conditions (such as H2SO4 concentration, liquid-to-solid ratio, temperature, and reaction time). Under the optimal conditions, the leaching rates of Cd and Bi are 93.15% and 0.78% respectively. In the second step, the Cd in the leaching solution is extracted through the replacement process to prepare Cd products to realize resource utilization.

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Literature
Metadata
Title
Efficient Extraction of Cd in Zn Recovery Process by Wet Leaching of Zn-Rich Dust
Authors
Yan Li
Xuefeng She
Jingsong Wang
Zeming Wang
Qingguo Xue
Copyright Year
2024
DOI
https://doi.org/10.1007/978-3-031-50236-1_41

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