Fundamental and flotation techniques assessing the effect of water quality on bubble-particle attachment of chalcopyrite and galena

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorOctober, L. L.en_US
dc.contributor.authorManono, M. S.en_US
dc.contributor.authorWiese, J. G.en_US
dc.contributor.authorSchreithofer, N.en_US
dc.contributor.authorCorin, K. C.en_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.groupauthorMineral Processing and Recyclingen
dc.contributor.organizationUniversity of Cape Townen_US
dc.date.accessioned2021-04-20T06:47:33Z
dc.date.available2021-04-20T06:47:33Z
dc.date.issued2021-06-15en_US
dc.description| openaire: EC/H2020/730480/EU//ITERAMS Funding Information: This work is financed by the National Research Foundation of South Africa (NRF) [Grant number 103641] and this project has received funding from the European Union H2020 programme under grant agreement No 730480. Any opinion, finding and conclusion or recommendation expressed in this material is that of the authors and the NRF does not accept any liability in this regard. Further the financial and technical contributions from the South African Minerals to Metals Research Institute (SAMMRI) is also acknowledged. Publisher Copyright: © 2021 The Author(s) Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
dc.description.abstractBubble-particle attachment has been studied in the most fundamental way from as early as 1934 by bringing a bubble into contact with a flat mineral surface and since then, techniques measuring this interaction have advanced. Water quality within flotation will impact the bubble particle attachment and as more operations recycle their water on site, an understanding of this process becomes vital. This study uses an Automated Contact Time Apparatus (ACTA) to assess the effect of water quality on bubble-particle attachment of selected sulfide minerals; galena and chalcopyrite, from a fundamental perspective. Classical microflotation tests are complemented with collector adsorption and mineral potential under degrading water quality to validate the ACTA and gain an understanding of the effect of water quality on bubble-particle attachment as well as subsequent flotation. This investigation showed that the results from the ACTA qualitatively showed similar trends as that of the classical microflotation technique for measuring floatability, however the quantitively these methods showed very different results. Due to the dynamic nature of the microflotation technique it may be assumed that plant recovery will resemble the results from this technique closer than that of the ACTA. Furthermore, this investigation showed an increase in zeta potential of both minerals as the concentration of inorganic electrolytes in the water increased. It can thus be speculated that the increase in bubble-particle attachment with increasing ionic strength of synthetic plant water may be attributed to electrical double layer compression and particle agglomeration.en
dc.description.versionPeer revieweden
dc.format.extent7
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationOctober, L L, Manono, M S, Wiese, J G, Schreithofer, N & Corin, K C 2021, ' Fundamental and flotation techniques assessing the effect of water quality on bubble-particle attachment of chalcopyrite and galena ', Minerals Engineering, vol. 167, 106880 . https://doi.org/10.1016/j.mineng.2021.106880en
dc.identifier.doi10.1016/j.mineng.2021.106880en_US
dc.identifier.issn0892-6875
dc.identifier.issn1872-9444
dc.identifier.otherPURE UUID: 607ee862-f308-4cfe-9d91-e2ab960904daen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/607ee862-f308-4cfe-9d91-e2ab960904daen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85103637195&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/61948903/1_s2.0_S0892687521001096_main.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/106875
dc.identifier.urnURN:NBN:fi:aalto-202104206169
dc.language.isoenen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/730480/EU//ITERAMS Funding Information: This work is financed by the National Research Foundation of South Africa (NRF) [Grant number 103641] and this project has received funding from the European Union H2020 programme under grant agreement No 730480. Any opinion, finding and conclusion or recommendation expressed in this material is that of the authors and the NRF does not accept any liability in this regard. Further the financial and technical contributions from the South African Minerals to Metals Research Institute (SAMMRI) is also acknowledged. Publisher Copyright: © 2021 The Author(s) Copyright: Copyright 2021 Elsevier B.V., All rights reserved.en_US
dc.relation.ispartofseriesMinerals Engineeringen
dc.relation.ispartofseriesVolume 167en
dc.rightsopenAccessen
dc.subject.keywordBubble-particle attachmenten_US
dc.subject.keywordChalcopyriteen_US
dc.subject.keywordFroth flotationen_US
dc.subject.keywordGalenaen_US
dc.subject.keywordIonsen_US
dc.subject.keywordWater qualityen_US
dc.titleFundamental and flotation techniques assessing the effect of water quality on bubble-particle attachment of chalcopyrite and galenaen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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