Recovery «in situ» of EAFD metals by means of process INTECT in the laboratory and pilot plant experimentations

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dc.contributor.authorSolozabal, R.
dc.contributor.authorArteche, A.
dc.contributor.authorKanari, N.
dc.contributor.authorGaballah, I.
dc.contributor.authorUgarte, A.
dc.contributor.institutionTecnalia Research & Innovation
dc.contributor.institutionMercado
dc.date.accessioned2024-07-24T12:11:29Z
dc.date.available2024-07-24T12:11:29Z
dc.date.issued2005
dc.description.abstractThis paper summarizes the INTECT process devoted to the recovery of valuable elements from electric arc furnace dust 'EAFD' «in - situ». Acidic leaching of EAFD, separation of solid/liquid, cementation of obtained ZnCl2 solution, precipitation of hydroxy-carbonate, calcinations of Zn5(CO3)2(OH)6 to obtain ZnO were successful tasks on the laboratory and pilot plant scales. The electrodialysis unit for NaCl splitting, to generate NaOH and HCI, was successful on the laboratory scale, its scaling up to the pilot scale was half success. Manufacturing of 400 tons of briquettes devoted to the study the impact of recycling of leaching's solid residue in the electric arc furnace was successful. Results of industrial trials confirm that including briquettes up to 2% of the charge of EAF doesn't modify the quality of the produced steel. The off gases' chemical composition was almost identical to that of normal operations. Moreover, the physico-chemical characteristics of the dust and the slag weren't modified. In addition, the generated dust had a higher content of Zn and there were no modifications of working conditions. Environmental assessment of the INTECT process is positive since recycling of EAFD will allow the conservation of mineral and energetic resources and will contribute indirectly to lower the CO2 emission.en
dc.description.statusPeer reviewed
dc.format.extent10
dc.identifier.citationSolozabal , R , Arteche , A , Kanari , N , Gaballah , I & Ugarte , A 2005 , ' Recovery «in situ» of EAFD metals by means of process INTECT in the laboratory and pilot plant experimentations ' , Afinidad , vol. 62 , no. 519 , pp. 373-382 .
dc.identifier.issn0001-9704
dc.identifier.urihttps://hdl.handle.net/11556/4188
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=33745039494&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofAfinidad
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsElectrodialysis
dc.subject.keywordsMetals valorization
dc.subject.keywordsSplitting salt
dc.subject.keywordsSteel dust recycling
dc.subject.keywordsZinc oxide manufacturing
dc.subject.keywordsZinc recovery
dc.subject.keywordsGeneral Chemistry
dc.subject.keywordsGeneral Chemical Engineering
dc.subject.keywordsSDG 13 - Climate Action
dc.titleRecovery «in situ» of EAFD metals by means of process INTECT in the laboratory and pilot plant experimentationsen
dc.typejournal article
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