PMID: 11900917Mar 20, 2002Paper

Hydrometallurgical recovery of zinc and lead from electric arc furnace dust using mononitrilotriacetate anion and hexahydrated ferric chloride

Journal of Hazardous Materials
Nathalie LeclercJean Marie Lecuire

Abstract

The purpose of this work was to study the feasibility at laboratory-scale of a new hydrometallurgical process for treating electric arc furnace dusts (EAFD). The proposed process is intended to extract zinc and lead from EAFD without destroying the iron oxides matrix. So, this material can be recycled by the steel industry. Independently of the origin of the samples, major mineralogical forms present in these wastes are Fe3O4, ZnO, ZnFe2O4 and PbOHCl. The proposed process consists of a hydrometallurgical treatment of wastes based on selective leaching of zinc and lead. Initially, a leaching is carried out utilizing a chelating agent, nitrilotriacetate anion (NTA3-), as the protonated form HNTA2-. Treatment of five EAFD samples for an hour at room temperature with a molar solution of reagent results in total leaching of the ZnO. In all cases the solubilized iron does not exceed 3 wt.%. The recovery of zinc and lead is performed by precipitation of metallic sulfides with a solution of Na2S4 sodium tetrasulfide 2M. These metallic sulfides can be used as metallurgical raw materials and the chelating reagent can be reused in the process after pH adjustment. The results of the normalized leaching test AFNOR X31-210 conducted on the l...Continue Reading

Citations

Dec 1, 2006·Applied Microbiology and Biotechnology·Alessandro D'AnnibaleMaurizio Petruccioli
Aug 8, 2013·Journal of Hazardous Materials·Sylwia OleszekTakashi Nakamura
May 3, 2011·Journal of Hazardous Materials·Wei-Sheng ChenFang-Chih Chang
Jul 18, 2015·Journal of Hazardous Materials·Mohammad Al-HarahshehMuhanned Hararah
Aug 1, 2008·Journal of Hazardous Materials·Jae-Min LeeYoon-Seok Chang
Nov 27, 2007·Journal of Hazardous Materials·Fernanda Machado MartinsCarlos Jorge da Cunha
Mar 17, 2007·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Visnja OrescaninStipe Lulić
Apr 12, 2019·Environmental Science and Pollution Research International·Angélica Lozano-LunarJosé Ramón Jiménez
Sep 10, 2008·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Loris ElezDamir Ruk
Dec 16, 2017·Physical Chemistry Chemical Physics : PCCP·Oday H AhmedBogdan Z Dlugogorski

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