Extraction of Critical Elements from Sulfuric Acid Solutions
Abstract
To address the supply risk of critical semiconducting materials, sustainable resources need to be developed. a zinc leach residue originating from electric arc furnace dust contains gallium (Ga), germanium (Ge), and indium (In). the residue can be leached with sulfuric acid to extract Ga, Ge, and in into an aqueous solution, however a process is needed to separate and concentrate these elements for recovery. the extraction of these critical elements from sulfuric acid solutions were examined using commercially available solvent extraction extractants and ion exchange resins. Distribution ratios and separation factors of these products are reported. a potential flowsheet to recover these critical electronic elements from a zinc leach residue is presented.
Recommended Citation
W. C. Hartzell and M. S. Moats, "Extraction of Critical Elements from Sulfuric Acid Solutions," 9th International Symposium on Hydrometallurgy 2023, Curran Associates, Inc., Jan 2023.
Department(s)
Materials Science and Engineering
International Standard Book Number (ISBN)
978-087335521-6
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Curran Associates Inc., All rights reserved.
Publication Date
01 Jan 2023
Comments
U.S. Department of Energy, Grant 1.1.18