Extraction Of Critical Electronic Materials From Steelmaking Wastes
Abstract
The stable domestic supply of gallium, indium, and germanium has been identified as a critical need for the USA. Electric arc furnace dusts processed to recover zinc produce a process residue that could be a potential source of these critical materials. An industrial zinc leach residue was characterized to determine the predominant mineral phases and leached with common mineral acids. Atmospheric agitated leaching using sulfuric acid and hydrochloric acid were examined to determine the extractions of gallium, indium, and germanium as a function of concentration, temperature, and time. Extractions of gallium were found to be similar to iron in all experiments. The maximum percentage of Ga, Ge, and In leached into solution were 82%, ~100%, and 89%, respectively.
Recommended Citation
W. Hartzell and M. S. Moats, "Extraction Of Critical Electronic Materials From Steelmaking Wastes," Mining, Metallurgy and Exploration, Springer, Jan 2023.
The definitive version is available at https://doi.org/10.1007/s42461-023-00819-w
Department(s)
Materials Science and Engineering
Keywords and Phrases
Critical materials; Gallium; Germanium; Indium; Recycling; Zinc residue
International Standard Serial Number (ISSN)
2524-3470; 2524-3462
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Springer, All rights reserved.
Publication Date
01 Jan 2023
Comments
U.S. Department of Energy, Grant None