Experimental Investigation of Pyrometallurgical Treatment of Zinc Residue

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorRämä, Minnaen_US
dc.contributor.authorJokilaakso, Arien_US
dc.contributor.authorKlemettinen, Lassien_US
dc.contributor.authorSalminen, Justinen_US
dc.contributor.authorTaskinen, Pekkaen_US
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineeringen_US
dc.contributor.departmentMetallurgy (MTG)en_US
dc.contributor.editorDavis, Boyden_US
dc.contributor.editorMoats, Men_US
dc.contributor.editorWang, Sen_US
dc.date.accessioned2018-10-02T11:31:06Z
dc.date.available2018-10-02T11:31:06Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2019-08-29en_US
dc.date.issued2018en_US
dc.description.abstractIron containing leach residues like jarosite and goethite from electrolytic zinc production contain many valuable metals and harmful substances. These metals and substances should be removed in order to obtain an acceptable, stable and reusable product, and maximize economic feasibility as well as minimize environmental footprint. In this work, the processing of jarosite leach residue was studied in laboratory scale experiments under oxidizing and reducing conditions at high temperatures. First, the pretreated material was melted and oxidized to produce a melt of metal oxides. Second, the oxide melt was reduced in CO –CO2 atmosphere. Target after the reduction step was to obtain a clean slag and a liquid metal or speiss phase that collects the valuable metals , such as silver . The kinetics of the thermal processing were studied for determining optimal times and conditions for the aforementioned process steps. The preliminary results show that the process is thermodynamically feasible, and the desired phases can be obtained in the experimental conditions investigated.en
dc.description.versionPeer revieweden
dc.format.extent981-992
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationRämä , M , Jokilaakso , A , Klemettinen , L , Salminen , J & Taskinen , P 2018 , Experimental Investigation of Pyrometallurgical Treatment of Zinc Residue . in B Davis , M Moats & S Wang (eds) , Extraction 2018 : Proceedings of the First Global Conference on Extractive Metallurgy . The Minerals, Metals & Materials Series , Springer , Warrendale , pp. 981-992 , Global Conference on Extractive Metallurgy , Ottawa , Ontario , Canada , 26/08/2018 . https://doi.org/10.1007/978-3-319-95022-8_79en
dc.identifier.doi10.1007/978-3-319-95022-8_79en_US
dc.identifier.isbn978-3-319-95021-1
dc.identifier.isbn978-3-319-95022-8
dc.identifier.otherPURE UUID: 7e766e28-e3eb-4f1d-a084-e0e246e4b3d8en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/7e766e28-e3eb-4f1d-a084-e0e246e4b3d8en_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/40682661/CHEM_Extraction_Experimental_investigation_of_pyrometallurgical_treatment_of_zinc_2018.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/34124
dc.identifier.urnURN:NBN:fi:aalto-201810025207
dc.language.isoenen
dc.relation.ispartofExtraction 2018en
dc.relation.ispartofseriesExtraction 2018en
dc.relation.ispartofseriesThe Minerals, Metals & Materials Seriesen
dc.rightsopenAccessen
dc.subject.keywordJarosite smelting ⋅ Thermal processing ⋅ Circular economy Slag valorizationen_US
dc.titleExperimental Investigation of Pyrometallurgical Treatment of Zinc Residueen
dc.typeConference article in proceedingsfi
dc.type.versionacceptedVersion
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