Investigation of Mechanochemical Decomposition of Cobalt-Containing Current Sources by Similarity Theory Methods

• Published in: Inorganic materials Vol. 58; no. 7; pp. 778 - 783
• Main Authors: Retivov, V. M., Gonopolsky, A. M., Makarenkov, D. A., Nazarov, V. I., Popov, A. P.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-07-2022; Springer Nature B.V
• Subjects: Alkali metals; Chemistry; Chemistry and Materials Science; Cobalt compounds; Comminution; Current sources; Decomposition; Electrode materials; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Leaching; Materials Science; Similarity theory; cobalt compounds; criterial relations; recycling; similarity criteria; mechanochemical decomposition
• ISSN: 0020-1685; 1608-3172
• DOI: 10.1134/S0020168522070123

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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.