报废产品中钴金属回收潜力研究

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Abstract Cobalt metal plays an increasingly prominent role in battery materials, superalloys, carbides, magnetic materials and other fields. Due to the extremely scarce of reserves and highly concentrated supply, it was currently the focus of major countries around the world. Recycling cobalt metal from end-of-life (EOL) products was generally considered as a key strategy to mitigate environmental pollution and increase resource supply. Based on existing literature, this study reviewed the content, recovery method and recycling rate of cobalt metal in different EOL products, and estimated the demand and spent quantity of cobalt containing products with material flow analysis method and regression analysis method. The recycling potential of cobalt metal in EOL products was calculated accordingly in Chinese mainland from 2022 to 2035. The results show that EOL battery materials are the main source of cobalt metal recycling, especially for passenger vehicles battery materials. China's cobalt metal recycling potential is increasing year by year, and is expected to reach about 24000~38000 tons by 2035. Finally, we put forward some suggestions to provide support for efficient disposal of EOL products, protection of ecological environment, and improvement of resource utilization efficiency.

Key words： cobalt recycling potential ternary material battery consumer batteries superalloys and carbides

Received: 24 October 2022

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X705

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	LI Jie
	LI Fang-qin
	HUANG Li
	DAI Tao

Cite this article:

LI Jie,LI Fang-qin,HUANG Li等. Study on the recycling potential of cobalt metal from end-of-life products[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(6): 2960-2969.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I6/2960

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