Zinc recovery from EAF dust through thermal reduction

Abstract : Electric arc furnace dust (EAFD) generated during the recycling of steel-scrap is classified as a hazardous waste for landfilling. This is because it contains leachable heavy metals such as zinc, lead, ... Recovery of these metals could result in both resources conservation and resolving waste disposal problems. A study of the thermal reduction of a sample of EAFD was carried out in an inert gas atmosphere using coke as a reducing agent. Preferential volatilization of zinc and lead was achieved during the reduction process at about 800 °C. More than 96 % of both zinc and lead were removed from the dust and were recovered in the condensates. The treatment residue was essentially composed of iron oxides and almost free from heavy metals.
Type de document :
Communication dans un congrès
Annual Meeting of the Minerals-Metals-and-Materials-Society, 2002, SEATTLE, WA, United States. pp. 349-357, 2002, EPD Congress 2002 on Fundamentals of Advanced Materials for Energy Conversion
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https://hal.univ-lorraine.fr/hal-01510122
Contributeur : Ndue Kanari <>
Soumis le : mercredi 19 avril 2017 - 09:55:51
Dernière modification le : jeudi 11 janvier 2018 - 06:18:12

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Ndue Kanari, Devabrata Mishra, I. Gaballah, Bernard Dupré. Zinc recovery from EAF dust through thermal reduction. Annual Meeting of the Minerals-Metals-and-Materials-Society, 2002, SEATTLE, WA, United States. pp. 349-357, 2002, EPD Congress 2002 on Fundamentals of Advanced Materials for Energy Conversion. 〈hal-01510122〉

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