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Fine Bauxite Recovery Using a Plate-Packed Flotation Column

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dc.contributor.authorZhang, Pengyuen
dc.contributor.authorJin, Saizhenen
dc.contributor.authorOu, Lemingen
dc.contributor.authorZhang, Wencaien
dc.contributor.authorZhu, Yutengen
dc.contributor.departmentMining and Minerals Engineeringen
dc.date.accessioned2020-09-08T13:25:08Zen
dc.date.available2020-09-08T13:25:08Zen
dc.date.issued2020-09-02en
dc.date.updated2020-09-07T22:00:05Zen
dc.description.abstractIn this investigation, the fine-grained bauxite ore flotation was conducted in a plate-packed flotation column. This paper evaluated the effects of packing-plates on recovering fine bauxite particles and revealed the fundamental mechanisms. Bubble coalescence and break-up behaviors in the packed and unpacked flotation columns were characterized by combining Computational Fluid Dynamics (CFD) and Population Balance Model (PBM) techniques. Flotation experiments showed that packing-plates in the collection zone of a column can improve bauxite flotation performance and increase the smaller bauxite particles recovery. Using packing-plates, the recovery of Al<sub>2</sub>O<sub>3</sub> increased by 2.11%, and the grade of Al<sub>2</sub>O<sub>3</sub> increased by 1.85%. The fraction of &minus;20 &mu;m mineral particles in concentrate increased from 47.31% to 54.79%. CFD simulation results indicated that the packing-plates optimized the bubble distribution characteristics and increased the proportion of microbubbles in the flotation column, which contributed to improving the capture probability of fine bauxite particles.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationZhang, P.; Jin, S.; Ou, L.; Zhang, W.; Zhu, Y. Fine Bauxite Recovery Using a Plate-Packed Flotation Column. Metals 2020, 10, 1184.en
dc.identifier.doihttps://doi.org/10.3390/met10091184en
dc.identifier.urihttp://hdl.handle.net/10919/99924en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectplate-packed flotation columnen
dc.subjectfine bauxite particlesen
dc.subjectbubble characteristicsen
dc.titleFine Bauxite Recovery Using a Plate-Packed Flotation Columnen
dc.title.serialMetalsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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Journal Articles, Multidisciplinary Digital Publishing Institute (MDPI)
Scholarly Works, Mining and Minerals Engineering