SOLVENT EXTRACTION OF COBALT FROM LEACHING SOLUTIONS OF COBALT ORES
The extraction of cobalt with amines has been studied in the most detail. The article presents experimental data obtained in the study of cobalt extraction from leaching solutions of cobalt ores with a mixture of tributylamine (TBA) in toluene and hexane. The dependence of the extraction degree and distribution coefficient of cobalt on pH, time, and the ratio of aqueous and organic phases have been studied. It has been shown that cobalt is maximally extracted with TBA in toluene in the pH range of 3-5 for no more than 5-10 minutes; in this case, 98% of cobalt extraction is achieved. The developed method of cobalt extraction with organic extractants can be widely used in non-ferrous metallurgy
doi.org/10.32737/0005-2531-2023-2-178-185
Keywords : cobalt, extraction, toluene, hexane, distribution coefficient, extraction degree, tributylamine
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