Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4675
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dc.contributor.authorPolat, Mehmet-
dc.contributor.authorPolat, Hürriyet-
dc.contributor.authorChander, Subhash-
dc.date.accessioned2016-05-27T12:50:01Z-
dc.date.available2016-05-27T12:50:01Z-
dc.date.issued2003-09-
dc.identifier.citationPolat, M., Polat, H., and Chander, S. (2003). Physical and chemical interactions in coal flotation. International Journal of Mineral Processing, 72(1-4), 199-213. doi:10.1016/S0301-7516(03)00099-1en_US
dc.identifier.issn0301-7516-
dc.identifier.urihttp://doi.org/10.1016/S0301-7516(03)00099-1-
dc.identifier.urihttp://hdl.handle.net/11147/4675-
dc.description.abstractCoal flotation is a complex process involving several phases (particles, oil droplets and air bubbles). These phases simultaneously interact with each other and with other species such as the molecules of a promoting reagent and dissolved ions in water. The physical and chemical interactions determine the outcome of the flotation process. Physical and chemical interactions between fine coal particles could lead to aggregation, especially for high rank coals. Non-selective particle aggregation could be said to be the main reason for the selectivity problems in coal flotation. It should be addressed by physical (conditioning) or chemical (promoters) pretreatment before or during flotation. Although the interactions between the oil droplets and coal particles are actually favored, stabilization of the oil droplets by small amounts of fine hydrophobic particles may lead to a decrease in selectivity and an increase in oil consumption. These problems could be remedied by use of promoters that modify the coal surface for suitable particle-particle, droplet-particle and particle-bubble contact while emulsifying the oil droplets. The role of promoters may be different for different types of coals, however. They could be employed as modifiers to increase the hydrophobicity of low rank coals whereas their main role might be emulsification and aggregation control for high rank coals. In this paper, a detailed description of the various phases in coal flotation, their physical and chemical interactions with each other in the flotation pulp, the major parameters that affect these interactions and how these interactions, in turn, influence the flotation process are discussed.en_US
dc.language.isoenen_US
dc.publisherElsevier Ltd.en_US
dc.relation.ispartofInternational Journal of Mineral Processingen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHigh energy physicsen_US
dc.subjectCoal flotationen_US
dc.subjectAggregationen_US
dc.subjectMoleculesen_US
dc.titlePhysical and chemical interactions in coal flotationen_US
dc.typeArticleen_US
dc.institutionauthorPolat, Mehmet-
dc.institutionauthorPolat, Hürriyet-
dc.departmentİzmir Institute of Technology. Chemical Engineeringen_US
dc.departmentİzmir Institute of Technology. Chemistryen_US
dc.identifier.volume72en_US
dc.identifier.issue1-4en_US
dc.identifier.startpage199en_US
dc.identifier.endpage213en_US
dc.identifier.wosWOS:000185722500017en_US
dc.identifier.scopus2-s2.0-0141794108en_US
dc.relation.publicationcategoryDiğeren_US
dc.identifier.doi10.1016/S0301-7516(03)00099-1-
dc.relation.doi10.1016/S0301-7516(03)00099-1en_US
dc.coverage.doi10.1016/S0301-7516(03)00099-1en_US
dc.identifier.wosqualityQ1-
dc.identifier.scopusqualityQ1-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.openairetypeArticle-
item.languageiso639-1en-
item.fulltextWith Fulltext-
crisitem.author.dept03.02. Department of Chemical Engineering-
crisitem.author.dept04.01. Department of Chemistry-
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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