Towards Sustainable Processing of Chromite Resources: A Review of Methods for Magnesium and Platinum-Group Metal Extraction
Abdulvaliyev R. Abikak Y. Akhmadiyeva N. Gladyshev S. Manapova A. Kasymzhanova A.
November 2025Multidisciplinary Digital Publishing Institute (MDPI)
Inorganics
2025#13Issue 11
This article provides a review of modern technologies for processing chromite ores and beneficiation wastes, with a focus on the recovery of magnesium and platinum-group metals (PGMs). It reveals that the traditional use of chromites solely as a source of chromium limits the potential of this raw material, whereas comprehensive processing enables the recovery of associated components, including serpentine minerals, which are widely present in chromite ores and tailings. Pyrometallurgical, hydrometallurgical, plasma-arc, and biotechnological methods are examined, as well as their integration into combined flowsheets. Particular attention is given to sulfation, chloridization, and carbochlorination processes, which ensure a high degree of PGM recovery. Economic and environmental aspects of comprehensive processing are discussed, including carbon footprint reduction, waste minimization, and prospects for the development of “green metallurgy.” It is concluded that the further advancement of resource-efficient and environmentally safe technologies for chromite processing will increase production efficiency, ensure resource independence, and support compliance with global carbon neutrality requirements.
chromite processing , integrated technologies , magnesium recovery , platinum-group metals
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Institute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty, 050010, Kazakhstan
Institute of Metallurgy and Ore Beneficiation
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