Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell

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dc.contributor.advisorDeglon, David Aen_ZA
dc.contributor.advisorHarris, Martinen_ZA
dc.contributor.authorMassey, Wesley Thomasen_ZA
dc.date.accessioned2016-04-01T06:51:39Z
dc.date.available2016-04-01T06:51:39Z
dc.date.issued2011en_ZA
dc.description.abstractThis thesis investigates the effect of energy dissipation on the flotation kinetics of quartz in an oscillating grid flotation cell. Oscillating grids exhibit relatively isotropic and homogeneous turbulence, which cannot be achieved in standard impeller agitated flotation cells. Due to this they provide a potentially ideal environment in which to investigate the effects of energy dissipation on flotation kinetics. Previous work in an oscillating grid flotation cell was limited to energy dissipations of up to 0.6 kW/m³, which is low when compared to 0.6 - 3 kW/m³ commonly used in both flotation literature and industry. The current work uses a new oscillating grid cell which can operate at energy dissipations of up to 5 kW/m³. Quartz (sub 100 μm) has been floated in the new cell at energy dissipations ranging from 0.5 - 5 kW/m³ and using three discrete bubble sizes (0.13 mm, 0.24 mm and 0.82 mm). Characterisation experiments show that the new cell operates in a similar manner to the oscillating grid cell used by Changunda et al. (2008), and produces repeatable results. The effect of changing bubble and particle size on flotation kinetics is in agreement with literature findings, indicating that as a flotation device the oscillating grid cell is operating as expected.en_ZA
dc.identifier.apacitationMassey, W. T. (2011). <i>Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/18475en_ZA
dc.identifier.chicagocitationMassey, Wesley Thomas. <i>"Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2011. http://hdl.handle.net/11427/18475en_ZA
dc.identifier.citationMassey, W. 2011. Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Massey, Wesley Thomas AB - This thesis investigates the effect of energy dissipation on the flotation kinetics of quartz in an oscillating grid flotation cell. Oscillating grids exhibit relatively isotropic and homogeneous turbulence, which cannot be achieved in standard impeller agitated flotation cells. Due to this they provide a potentially ideal environment in which to investigate the effects of energy dissipation on flotation kinetics. Previous work in an oscillating grid flotation cell was limited to energy dissipations of up to 0.6 kW/m³, which is low when compared to 0.6 - 3 kW/m³ commonly used in both flotation literature and industry. The current work uses a new oscillating grid cell which can operate at energy dissipations of up to 5 kW/m³. Quartz (sub 100 μm) has been floated in the new cell at energy dissipations ranging from 0.5 - 5 kW/m³ and using three discrete bubble sizes (0.13 mm, 0.24 mm and 0.82 mm). Characterisation experiments show that the new cell operates in a similar manner to the oscillating grid cell used by Changunda et al. (2008), and produces repeatable results. The effect of changing bubble and particle size on flotation kinetics is in agreement with literature findings, indicating that as a flotation device the oscillating grid cell is operating as expected. DA - 2011 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2011 T1 - Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell TI - Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell UR - http://hdl.handle.net/11427/18475 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/18475
dc.identifier.vancouvercitationMassey WT. Investigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cell. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2011 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18475en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleInvestigating the effect of energy dissipation on flotation kinetics in an oscillating grid flotation cellen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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