Extraction of Critical Electronic Materials from Steelmaking Wastes

Article Metallurgy & Metallurgical Engineering

Hydrometallurgical process for recovery of Zn, Pb, Ga and Ge from Zn refinery residues

Shuai Rao et al.

Summary: Zinc, lead, gallium, and germanium were successfully separated and recovered from zinc refinery residues using stepwise leaching method. The process involved leaching with sulfuric acid followed by leaching with hydrochloric acid, and finally extracting germanium in sodium hydroxide solution. The proposed process achieved high recoveries of the target metals, presenting potential industrial applications.

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA (2021)

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Review Green & Sustainable Science & Technology

Pyrometallurgical recovery of zinc and valuable metals from electric arc furnace dust - A review

Jie Wang et al.

Summary: Electric arc furnace dust (EAFD) is a kind of metallurgical solid waste with huge production, and how to efficiently recover valuable metals from it has become the aim of various treatment processes. This paper discusses the physical and chemical properties of EAFD, as well as various treatment processes and the properties of the metals obtained from them. It provides theoretical guidance and practical reference for the treatment and utilization of EAFD.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Engineering, Chemical

Adaptive process for improving leaching efficiency of germanium from secondary zinc oxide

Yingxu Zhu et al.

Summary: The study successfully used an adaptive process to treat germanium-containing secondary zinc oxide, and verified the efficiency and stability of the process through batch and continuous experiments. The leaching efficiencies of zinc and germanium were investigated separately in the experiments, and the process was found to be promising for industrial application.

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING (2021)

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Article Engineering, Chemical

Application of zinc ferrite reduction in the extraction of Zn, Ga and In from zinc refinery residue

Vivek Kashyap et al.

Summary: A method to enhance the leaching kinetics of zinc refinery residue (ZRR) with significant impact on the leaching of zinc, gallium, and indium was introduced in the study. Reduction roasting of zinc ferrite (ZF) eased the leaching process, achieving over 90% extraction of the target elements. Characterization of ZRR was conducted using various techniques including LA ICP-MS, SEM, XRD, and automated mineralogy.

MINERALS ENGINEERING (2021)

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Review Green & Sustainable Science & Technology

A comprehensive review of processing strategies for iron precipitation residues from zinc hydrometallurgy

Lukas Hoeber et al.

Summary: In the hydrometallurgical production of zinc, valuable elements are lost due to waste disposal. Various strategies, including the widely used Jarofix process, have been investigated to address this issue. However, challenges exist in implementing these methods on a large industrial scale.

CLEANER ENGINEERING AND TECHNOLOGY (2021)

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Article Metallurgy & Metallurgical Engineering