On the Kinetic Behavior of Recycling Precious Metals (Au, Ag, Pt, and Pd) Through Copper Smelting Process

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorWan, Xingbangen_US
dc.contributor.authorKleemola, Lottaen_US
dc.contributor.authorKlemettinen, Lassien_US
dc.contributor.authorO’Brien, Hughen_US
dc.contributor.authorTaskinen, Pekkaen_US
dc.contributor.authorJokilaakso, Arien_US
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineeringen
dc.contributor.departmentSchool services, CHEMen
dc.contributor.groupauthorMetallurgy (MTG)en
dc.contributor.organizationGeological Survey of Finlanden_US
dc.date.accessioned2021-09-29T09:59:10Z
dc.date.available2021-09-29T09:59:10Z
dc.date.issued2021-09en_US
dc.descriptionFunding Information: This work was financially supported by the Aalto University School of Chemical Engineering and the Business Finland financed SYMMET project [Grant number 3891/31/2018]. Thanks to Outotec Research Center (Pori, Finland) for their contribution. This study utilized the Academy of Finland’s RawMatTERS Finland Infrastructure (RAMI) based jointly at Aalto University, GTK, and VTT in Espoo. Xingbang Wan would also like to acknowledge the financial support from the China Scholarship Council [Grant Number 201706370096]. Publisher Copyright: © 2021, The Author(s).
dc.description.abstractThe recycling and recovery of precious metals from secondary materials, such as waste-printed circuit boards, are an important area of circular economy research due to the limited existing resources and increasing amount of e-waste produced by the rapid development of technology. In this study, the kinetic behavior of precious metals Au, Ag, Pt, and Pd between copper matte and iron-silicate slag was investigated at a typical flash smelting temperature of 1300 °C in both air and argon atmospheres. SEM–EDS, EPMA, and LA-ICP-MS-advanced analysis methods were used for sample characterization. The results indicate that precious metals favor the matte phase over slag, and the deportment to matte occurred swiftly within a short time after the system had reached the experimental temperature. With increasing contact times, the precious metals were distributed increasingly into the sulfide matte. The distribution coefficients, based on experimentally measured element concentrations, followed the order of palladium > platinum > gold > silver in both air and argon, and the matte acted as an efficient collector of these precious metals. The obtained results can be applied to industrial copper matte smelting processes, and they also help in upgrading CFD models to simulate the flash smelting process more precisely.en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.extent920-931
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationWan, X, Kleemola, L, Klemettinen, L, O’Brien, H, Taskinen, P & Jokilaakso, A 2021, ' On the Kinetic Behavior of Recycling Precious Metals (Au, Ag, Pt, and Pd) Through Copper Smelting Process ', Journal of Sustainable Metallurgy, vol. 7, no. 3, pp. 920-931 . https://doi.org/10.1007/s40831-021-00388-6en
dc.identifier.doi10.1007/s40831-021-00388-6en_US
dc.identifier.issn2199-3823
dc.identifier.issn2199-3831
dc.identifier.otherPURE UUID: 823e64a3-65d8-44a7-8e9f-78512a02a06aen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/823e64a3-65d8-44a7-8e9f-78512a02a06aen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85107488398&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/67773010/CHEM_Wan_et_al_On_the_Kinetic_Behavior_2021_Journal_of_Sustainable_Metallurgy.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/110173
dc.identifier.urnURN:NBN:fi:aalto-202109299373
dc.language.isoenen
dc.publisherSpringer International Publishing AG
dc.relation.ispartofseriesJournal of Sustainable Metallurgyen
dc.relation.ispartofseriesVolume 7, issue 3en
dc.rightsopenAccessen
dc.subject.keywordDistribution coefficientsen_US
dc.subject.keywordFlash smeltingen_US
dc.subject.keywordIron-silicate slagen_US
dc.subject.keywordRecyclingen_US
dc.subject.keywordWPCBen_US
dc.titleOn the Kinetic Behavior of Recycling Precious Metals (Au, Ag, Pt, and Pd) Through Copper Smelting Processen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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