Correlation of shear flocculation of some salt-type minerals with their wettability parameter

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dc.contributor.authorOzkan, A.
dc.contributor.authorUslu, Z.
dc.contributor.authorDuzyol, S.
dc.contributor.authorUcbeyiay, H.
dc.date.accessioned2020-03-26T17:17:09Z
dc.date.available2020-03-26T17:17:09Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThis paper considers the importance of surface hydrophobicity in the shear flocculation process and presents a correlation between the shear flocculation and the wettability parameter for barite, celestite and calcite as salt-type minerals. The critical surface tension of wetting (gamma(c)) as a wettability parameter describes wetting characteristics of any mineral. The variation of the shear flocculation behaviours of barite, celestite and calcite with sodium oleate concentration in various methanol solutions was investigated. The shear flocculation of these minerals in the methanol solutions increased rapidly towards the optimum surfactant concentration, and thereafter remained relatively constant or increased slightly. On the other hand, the shear flocculation of the minerals decreased with increasing methanol concentration, depends on decreasing surface tension. The gamma(c) values of these minerals as a function of surfactant concentration were determined using a shear flocculation approach. It was found that the gamma(c) values did not change much at surfactant concentrations above the optimum. This result provides a reason for the observed lack of significant increase in the shear flocculation of the mineral suspensions when surfactant concentrations higher than the optimum are used. Furthermore, a strong correlation between the effective shear flocculation and the critical surface tension of wetting (gamma(c)) value was established. As the effective shear flocculation of these salt-type minerals increased sharply below a particular gamma(c) value, it was not much improved after reaching the gamma(c) value obtained at the optimum concentration of sodium oleate. (c) 2006 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.cep.2006.10.018en_US
dc.identifier.endpage1348en_US
dc.identifier.issn0255-2701en_US
dc.identifier.issn1873-3204en_US
dc.identifier.issue12en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1341en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.cep.2006.10.018
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21290
dc.identifier.volume46en_US
dc.identifier.wosWOS:000251482000012en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.relation.ispartofCHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATIONen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectshear flocculationen_US
dc.subjectcritical surface tension of wettingen_US
dc.subjectbariteen_US
dc.subjectcelestiteen_US
dc.subjectcalciteen_US
dc.titleCorrelation of shear flocculation of some salt-type minerals with their wettability parameteren_US
dc.typeArticleen_US

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