Flotation behaviour of fine particles with respect to contact angle

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dc.contributor.authorChipfunhu, D.
dc.contributor.authorZanin, M.
dc.contributor.authorGrano, S.
dc.contributor.organisationInstitute for Mineral and Energy Resources
dc.date.issued2012
dc.description.abstractThe flotation behaviour of methylated quartz particles of different size, but within the size range from 0.2 to 50μm, and varying contact angle, was probed in a mechanical flotation cell. Results suggest that particles of a given size need to possess a minimum critical contact angle (θ <inf>crit</inf>) for flotation to occur. This behaviour is shown not to be solely dependent on fine particles having lower collision efficiency with bubbles, but rather due to a combination of low collision efficiency and particles not having enough kinetic energy at collision with bubbles to form the three phase line of contact and initiate the attachment process. In the particle size range investigated, the critical contact angle increases with a decrease in particle size. © 2011 The Institution of Chemical Engineers.
dc.description.statementofresponsibilityD. Chipfunhu, M. Zanin, S. Grano
dc.identifier.citationChemical Engineering Research and Design, 2012; 90(1A Sp Iss):26-32
dc.identifier.doi10.1016/j.cherd.2011.06.021
dc.identifier.issn0263-8762
dc.identifier.urihttp://hdl.handle.net/2440/74338
dc.language.isoen
dc.publisherInst Chemical Engineers
dc.rights© 2011 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.cherd.2011.06.021
dc.subjectFlotation
dc.subjectCritical contact angle
dc.subjectFine particles
dc.titleFlotation behaviour of fine particles with respect to contact angle
dc.typeJournal article
pubs.publication-statusPublished

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