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Effects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collector

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dc.contributor.authorZeng, Guangshengen
dc.contributor.authorOu, Lemingen
dc.contributor.authorZhang, Wencaien
dc.contributor.authorZhu, Yutengen
dc.date.accessioned2022-02-07T19:13:32Zen
dc.date.available2022-02-07T19:13:32Zen
dc.date.issued2020-04-28en
dc.date.updated2022-02-07T19:13:30Zen
dc.description.abstractIn this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS2) from chalcopyrite using kerosene as collector was systematically investigated. The results of single-mineral micro-flotation tests indicated that SA exhibited strong depression on chalcopyrite flotation while it imposed no impact on the floatability of molybdenite. However, in the chalcopyrite–molybdenite mixed-mineral flotation system, the presence of chalcopyrite significantly increased the depressing effect of SA on molybdenite flotation, leading to a considerable reduction in the flotation selectivity. The negative impact of chalcopyrite on the performance of SA in molybdenite flotation was eliminated by adding a certain dosage of kerosene prior to SA. A concentrate containing 53.43% of molybdenum (Mo) was obtained at 76.90% of recovery using 19 mg/L kerosene and 40 mg/L SA at pH 5.4. Zeta potential measurements indicated that the adsorption of SA on chalcopyrite surfaces was stronger than that on molybdenite surfaces, which agreed with the single-mineral flotation test results. The adsorption of SA on chalcopyrite was further confirmed to be chemisorption by Fourier-transform infrared spectroscopy (FTIR) spectra analyses. When Cu2+ appeared in solution, the flotation of molybdenite was strongly depressed by SA. Mechanism analyses indicated that more active sites were generated on molybdenite surfaces after the addition of Cu2+, thus promoting the adsorption of SA.en
dc.description.versionPublished versionen
dc.format.extent9 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN 242 (Article number)en
dc.identifier.doihttps://doi.org/10.3389/fchem.2020.00242en
dc.identifier.eissn2296-2646en
dc.identifier.issn2296-2646en
dc.identifier.orcidZhang, Wencai [0000-0001-8568-5309]en
dc.identifier.pmid32411654en
dc.identifier.urihttp://hdl.handle.net/10919/108193en
dc.identifier.volume8en
dc.language.isoenen
dc.publisherFrontiersen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000556530100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectChemistry, Multidisciplinaryen
dc.subjectChemistryen
dc.subjectmolybdeniteen
dc.subjectchalcopyriteen
dc.subjectsodium alginateen
dc.subjectCu2+-activationen
dc.subjectflotationen
dc.subjectSELECTIVE FLOTATIONen
dc.subjectPROCESS WATERen
dc.subjectPART IIen
dc.subjectIONSen
dc.subjectADSORPTIONen
dc.subjectCALCIUMen
dc.subjectCHITOSANen
dc.subjectSULFIDEen
dc.subjectPYRITEen
dc.subjectCASSITERITEen
dc.subjectCu2+-activationen
dc.subjectchalcopyriteen
dc.subjectflotationen
dc.subjectmolybdeniteen
dc.subjectsodium alginateen
dc.titleEffects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collectoren
dc.title.serialFrontiers in Chemistryen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
dcterms.dateAccepted2020-03-13en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Mining and Minerals Engineeringen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

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