Australia’s spodumene: Advances in lithium extraction technologies, decarbonization, and circular economy

Document Type

Journal Article

Publication Title

Industrial & Engineering Chemistry Research

Publisher

ACS

School

School of Science

Funders

Tianqi Lithium Kwinana Pty. Ltd.

Comments

Asif, A. H., Li, C., Lim, H., & Sun, H. (2024). Australia’s spodumene: Advances in lithium extraction technologies, decarbonization, and circular economy. Industrial & Engineering Chemistry Research, 63(5), 2073-2086. https://doi.org/10.1021/acs.iecr.3c04048

Abstract

Among all of the lithium-bearing minerals, spodumene possesses the highest theoretical lithium abundance. Since the 1990s, Australia, with the world’s largest spodumene (LiAl(SiO3)2) reserves, has been producing lithium as a mineral concentrate rather than a refined product. Nevertheless, the country is now moving forward to fortify its processing facilities, aligning with the vision for greener energy. This review provides a comprehensive outlook on the current status of spodumene reserves and their processing facilities along with potential expansion in the future. Spodumene processing requires several metallurgical processes ranging from salt roasting to acid leaching. However, the conventional industrial practices for Li-extraction from ores result in excessive pressure on resources, energy, and waste management. Considering these factors as an indicator of a circular economy, the process of lithium extraction should be simplified. In such a context, different practices for Li-extraction from spodumene are exemplified by recent technological advancements. Afterward, strategies for decarbonization, waste management, and environmental aspects were provided, with a perspective of circular economy. This review is expected to serve as a reference for research and development for potential industrial applications in ore processing especially for spodumene.

DOI

10.1021/acs.iecr.3c04048

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