Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD). Part II: Downstream processing and zinc recovery by electrowinning

Tsakiridis, PE; Oustadakis, P; Katsiapi, A; Agatzini-Leonardou, S

dc.contributor.author	Tsakiridis, PE	en
dc.contributor.author	Oustadakis, P	en
dc.contributor.author	Katsiapi, A	en
dc.contributor.author	Agatzini-Leonardou, S	en
dc.date.accessioned	2014-03-01T01:33:37Z
dc.date.available	2014-03-01T01:33:37Z
dc.date.issued	2010	en
dc.identifier.issn	0304-3894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20490
dc.subject	EAFD	en
dc.subject	Electrowinning	en
dc.subject	Leach liquor	en
dc.subject	Purification	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Agitation leaching	en
dc.subject.other	Chemical precipitation	en
dc.subject.other	Cyanex 272	en
dc.subject.other	Downstream-processing	en
dc.subject.other	Electric arc furnace dust	en
dc.subject.other	Extractant concentration	en
dc.subject.other	High-purity	en
dc.subject.other	Hydrometallurgical process	en
dc.subject.other	Jarosites	en
dc.subject.other	Leach liquor	en
dc.subject.other	Leach liquors	en
dc.subject.other	Organic phase	en
dc.subject.other	Purification process	en
dc.subject.other	Spent electrolytes	en
dc.subject.other	Sulphate solutions	en
dc.subject.other	Sulphates	en
dc.subject.other	Sulphuric acids	en
dc.subject.other	Unit operation	en
dc.subject.other	Zinc electrowinning	en
dc.subject.other	Zinc recovery	en
dc.subject.other	Atmospheric pressure	en
dc.subject.other	Cavity resonators	en
dc.subject.other	Dust control	en
dc.subject.other	Electric arcs	en
dc.subject.other	Electric furnace process	en
dc.subject.other	Electric furnaces	en
dc.subject.other	Electrolytes	en
dc.subject.other	Electrowinning	en
dc.subject.other	Furnaces	en
dc.subject.other	Hydrometallurgy	en
dc.subject.other	Leaching	en
dc.subject.other	Lead	en
dc.subject.other	Metal recovery	en
dc.subject.other	Purification	en
dc.subject.other	Salt removal	en
dc.subject.other	Solvent extraction	en
dc.subject.other	Solvents	en
dc.subject.other	Steel metallurgy	en
dc.subject.other	Stripping (dyes)	en
dc.subject.other	Sulfuric acid	en
dc.subject.other	Zinc metallurgy	en
dc.subject.other	Zinc	en
dc.subject.other	iron	en
dc.subject.other	sulfate	en
dc.subject.other	zinc	en
dc.subject.other	acidity	en
dc.subject.other	aqueous solution	en
dc.subject.other	dust	en
dc.subject.other	electrokinesis	en
dc.subject.other	electrolyte	en
dc.subject.other	extraction method	en
dc.subject.other	ion exchange	en
dc.subject.other	leaching	en
dc.subject.other	metallurgy	en
dc.subject.other	pH	en
dc.subject.other	precipitation (chemistry)	en
dc.subject.other	processing	en
dc.subject.other	solvent	en
dc.subject.other	sulfuric acid	en
dc.subject.other	acidity	en
dc.subject.other	article	en
dc.subject.other	downstream processing	en
dc.subject.other	dust	en
dc.subject.other	electrowinning	en
dc.subject.other	industrial waste	en
dc.subject.other	iron and steel industry	en
dc.subject.other	leaching	en
dc.subject.other	metallurgy	en
dc.subject.other	purification	en
dc.subject.other	waste component removal	en
dc.subject.other	Dust	en
dc.subject.other	Electrochemistry	en
dc.subject.other	Electrolytes	en
dc.subject.other	Indicators and Reagents	en
dc.subject.other	Iron	en
dc.subject.other	Metallurgy	en
dc.subject.other	Microscopy, Electron, Scanning	en
dc.subject.other	Phosphinic Acids	en
dc.subject.other	Solvents	en
dc.subject.other	X-Ray Diffraction	en
dc.subject.other	Zinc	en
dc.title	Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD). Part II: Downstream processing and zinc recovery by electrowinning	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhazmat.2010.04.004	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhazmat.2010.04.004	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The characterization and the agitation leaching of electric arc furnace dust (EAFD) by diluted sulphuric acid have been studied in Part I, as a separate article. The aim of the present research work (Part II) is the development of a purification process of the leach liquor for the recovery of high-purity zinc by electrowinning. The proposed hydrometallurgical process consists of the following four (4) unit operations: (1) Removal of iron as easily filterable crystalline basic sulphate salt of the jarosite type, at atmospheric pressure, by chemical precipitation at pH: 3.5 and 95 degrees C. (2) Zinc solvent extraction by Cyanex 272 at pH: 3.5, T: 40 degrees C, with 25% extractant concentration. (3) Stripping of the loaded organic phase by zinc spent electrolyte (62.5 g/L Zn2+) at T: 40 degrees C with diluted H2SO4 (3 mol/L). (4) Zinc electrowinning from sulphate solutions (at 38 degrees C) using Al as cathode and Pb as anode. The acidity of the electrolyte was fixed at 180 g/L H2SO4, while the current density was kept constant at 500 A/m(2). (C) 2010 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/j.jhazmat.2010.04.004	en
dc.identifier.isi	ISI:000278626700002	en
dc.identifier.volume	179	en
dc.identifier.issue	1-3	en
dc.identifier.spage	8	en
dc.identifier.epage	14	en