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Phosphorus separation from metallurgical-grade silicon by magnesium alloying and acid leaching

dc.contributor.authorZhu, Mengyi
dc.contributor.authorAzarov, Alexander
dc.contributor.authorMonakhov, Eduard
dc.contributor.authorTang, Kai
dc.contributor.authorSafarian, Jafar
dc.date.accessioned2020-09-28T07:58:10Z
dc.date.available2020-09-28T07:58:10Z
dc.date.created2020-09-22T21:37:59Z
dc.date.issued2020
dc.identifier.citationSeparation and Purification Technology. 2020, 240 .en_US
dc.identifier.issn1383-5866
dc.identifier.urihttps://hdl.handle.net/11250/2679852
dc.description.abstractn this paper, the separation of phosphorus from metallurgical-grade silicon was investigated based on an Mgalloying and HCl leaching approach. Experimental results show that P concentration was reduced from initial15.1ppmwto0.2ppmwwithalsolargeextentremovalofmetallicimpuritiesbytwotimesMgalloying-leachingpurification.ThemechanismofenhancedPseparationisclarifiedowingtothestrongaffinitybetweenMgandP,whichisvalidatedbySIMSelementalmapping.Atwo-parameteranalyticalmodelwasdevelopedtopredicttheP removal degree based on the variables of alloying metal concentration and interaction coefficient betweenalloyingmetalandP.Themodelisvalidatedwith experimentalresultsandtheinteractioncoefficientflg in “iXwasobtainedas−10.8.ThisapproachcanbeappliedtomodeltheremovalofimpuritywhichfollowsGulliver-Scheil solidification from other binary alloying systems. Furthermore, in order to study the effect of appliedalloying-leaching operation times, a model was proposed which establishes the mathematical relationshipsamongkeyprocessingvariableslikeinitialandtargetPconcentrations,theamountofthealloyingmetal,andtheprocess operation timesen_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titlePhosphorus separation from metallurgical-grade silicon by magnesium alloying and acid leachingen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber12en_US
dc.source.volume240en_US
dc.source.journalSeparation and Purification Technologyen_US
dc.identifier.doi10.1016/j.seppur.2020.116614
dc.identifier.cristin1832310
dc.relation.projectNorges forskningsråd: 257639en_US
dc.description.localcodeThis is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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