Abstract—
This paper examines a multistep physicochemical process underlying the recycling of spent cobalt-containing current sources, which comprises an opening step in a shredder, secondary comminution in a rotor knife mill, and mechanical comminution of electrode materials in a ball mill, followed by chemical leaching and extraction, and allows the yield of cobalt compounds to be raised. In describing the combination of mechanical comminution and chemical leaching processes, we rely on results of studies of mechanochemical decomposition processes in the case of alkali metals [1]. To analyze the influence of a combination of mechanical and technological factors on the effectiveness of the preparation of required products, we derive governing dimensionless criteria and criterial relations using similarity and dimension theory methods.
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ACKNOWLEDGMENTS
Research was done using equipment of NRC “Kurchatov Institute”—IREA Shared Knowledge Center under project’s financial support by the Russian Federation, represented by The Ministry of Science and Higher Education of the Russian Federation, Agreement No. 075-11-2021-070 dd. August 19, 2021.
Funding
This work was supported by the Russian Science Foundation (grant no. 21-19-00403: Investigation of Processes of Mechanochemical Destruction of Cathode Materials during the Extraction of Cobalt and Its Compounds).
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Retivov, V.M., Gonopolsky, A.M., Makarenkov, D.A. et al. Investigation of Mechanochemical Decomposition of Cobalt-Containing Current Sources by Similarity Theory Methods. Inorg Mater 58, 778–783 (2022). https://doi.org/10.1134/S0020168522070123
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DOI: https://doi.org/10.1134/S0020168522070123