Technology is presented for recycling the negative segments of nickel-cadmium batteries based on the use of sodium ethyelenediaminetetraacetate (EDTA) as a leaching (complex-forming) reagent. Methods are proposed for recovering the solvent and cadmium oxide preparation, suitable for manufacturing alkaline storage batteries. The technology developed is distinguished by a high degree of cadmium extraction into saleable product, selectivity, ecological safety, the possibility of complete recovery of solvent, and absence of harmful effluents and secondary waste.
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N. M. Dyatlova, V. Ya. Temkina, and K. I. Popov, Complexones and Metal Complexonates [in Russian], Khimiya, Moscow (1988).
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Translated from Metallurg, No. 5, pp. 76–79, May, 2011.
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Barashev, A.R., Karelov, S.V., Anisimova, O.S. et al. Innovative technology for recycling the negative segments of alkaline batteries using recoverable solvent. Metallurgist 55, 381 (2011). https://doi.org/10.1007/s11015-011-9440-4
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DOI: https://doi.org/10.1007/s11015-011-9440-4