Journal
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
Volume 43, Issue 6, Pages 679-700Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/08827508.2021.1916927
Keywords
Cobalt recovery; critical raw material; secondary resources; recycling; industrial-scale recycling
Funding
- National Natural Science Foundation of China [51904350, 51922108, 51874371]
- Hunan Natural Science Foundation [2019JJ20031]
- Hunan key research and development program [2020SK2005]
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The demand for cobalt has seen significant growth in recent years due to its wide utilization in various critical industries. Concerns arise as over half of the world's cobalt demand is supplied by just one country, raising potential risks for future supply. Recycling cobalt from secondary resources is viewed as a solution to address this issue, though it comes with its challenges.
Cobalt demand has witnessed tremendous growth in recent years due to its wide utilization in many critical industries. However, more than half the world's demand for cobalt is supplied only by one country, raising concerns about the potential future supply. Considering the status of cobalt as a critical raw material, recycling is viewed as an option to provide an alternative stream of supply by recovering cobalt from secondary resources. In this paper the importance of cobalt recovery from secondary resources is highlighted. The current state of research on Co recovery from secondary resources such as catalysts, magnets, superalloys, cemented carbides, rechargeable batteries, and metallurgical wastes are discussed. The industrial-scale cobalt recycling has also been reviewed to give a better overview of the overall progress. This review provides insights into the future outlook and challenges associated with cobalt recovery from secondary resources. Despite the challenges, cobalt recovery technologies from secondary resources should be further developed.
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