Abstract
The application of discarded Ni-Fe accumulator batteries in charge for the ferronickel production in an electric arc furnace (EAF) gives the dual advantage. One the one hand positive plates content is the major contributor of Ni into the charge. On the other hand the accumulator batteries posses the great potential for the admixtures oxidation in ferronickel melt since they contain Fe(OH)2 and Ni(OH)2. The remelting trials of charge consisted exclusively of the batteries were made in a 5 ton capacity EAF. The analysis of the theoretical and experimental results was carried out. The metal yield ratio was determined. The application of the discarded batteries as an oxidizing agent was also investigated. The dominant part of Fe(OH)2 in oxidizing processes was pointed out. It was proved that Ni(OH)2 is decomposed into elements at elevated temperatures of the ferronickel production before its dissolving in the melt. Therefore the part of Ni(OH)2 as oxidizing agent is negligible.
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© 2002 Springer Science+Business Media Dordrecht
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Sokolov, V.M. (2002). The Technological Aspects of the Nickel — Iron Accumulator Batteries Recycling. In: Hampton, M.D., Schur, D.V., Zaginaichenko, S.Y., Trefilov, V.I. (eds) Hydrogen Materials Science and Chemistry of Metal Hydrides. NATO Science Series, vol 71. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0558-6_8
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DOI: https://doi.org/10.1007/978-94-010-0558-6_8
Publisher Name: Springer, Dordrecht
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