The liberation characteristics of Greenside No. 2 seam coal

Simple item page
dc.contributor.advisorFranzidis, Jean-Paulen_ZA
dc.contributor.authorHarris, Martin Colquhounen_ZA
dc.date.accessioned2016-10-16T09:50:24Z
dc.date.available2016-10-16T09:50:24Z
dc.date.issued1987en_ZA
dc.descriptionBibliography: pages 116-119.en_ZA
dc.description.abstractIn South Africa, ever increasing quantities of fine (-0,5 mm) coal are being produced as a result of the increased use of mechanised mining methods. Very few mines beneficiate the fines; in most cases they are discarded. However the fine size of this material suggests that it should be well liberated, with the potential to produce a low ash product. This thesis forms part of an ongoing research program examining the use of flotation to beneficiate coal fines to produce a low ash product. Coal is a highly heterogeneous material, consisting of a number of both organic (maceral) and inorganic (mineral) components with different physical and technological properties. Therefore in order to evaluate and interpret flotation results, an understanding of the liberation characterist ics of both the organic and inoganic components is required. This thesis presents a liberation study on fine coal from the Greenside Colliery, a typical colliery in the Witbank Coalfield which is the most important source of South African low ash coal. The study was performed by mining a run of mine coal sample to varying degrees of fineness (from 30 % finer than 150 micron to 90 % finer than 150 micron), screening, and assessing the liberation of each size fraction. These results were compared to those obtained from a sample of naturally arising fines (thickener underflow). Liberation was assessed by float and sink analysis, and for this purpose a new technique was developed that enables rapid and accurate float and sink analysis of coal down to a few micron in size. Petrographic analyses were performed to determine the liberation of the organic coal components.en_ZA
dc.identifier.apacitationHarris, M. C. (1987). <i>The liberation characteristics of Greenside No. 2 seam coal</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/22158en_ZA
dc.identifier.chicagocitationHarris, Martin Colquhoun. <i>"The liberation characteristics of Greenside No. 2 seam coal."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1987. http://hdl.handle.net/11427/22158en_ZA
dc.identifier.citationHarris, M. 1987. The liberation characteristics of Greenside No. 2 seam coal. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Harris, Martin Colquhoun AB - In South Africa, ever increasing quantities of fine (-0,5 mm) coal are being produced as a result of the increased use of mechanised mining methods. Very few mines beneficiate the fines; in most cases they are discarded. However the fine size of this material suggests that it should be well liberated, with the potential to produce a low ash product. This thesis forms part of an ongoing research program examining the use of flotation to beneficiate coal fines to produce a low ash product. Coal is a highly heterogeneous material, consisting of a number of both organic (maceral) and inorganic (mineral) components with different physical and technological properties. Therefore in order to evaluate and interpret flotation results, an understanding of the liberation characterist ics of both the organic and inoganic components is required. This thesis presents a liberation study on fine coal from the Greenside Colliery, a typical colliery in the Witbank Coalfield which is the most important source of South African low ash coal. The study was performed by mining a run of mine coal sample to varying degrees of fineness (from 30 % finer than 150 micron to 90 % finer than 150 micron), screening, and assessing the liberation of each size fraction. These results were compared to those obtained from a sample of naturally arising fines (thickener underflow). Liberation was assessed by float and sink analysis, and for this purpose a new technique was developed that enables rapid and accurate float and sink analysis of coal down to a few micron in size. Petrographic analyses were performed to determine the liberation of the organic coal components. DA - 1987 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1987 T1 - The liberation characteristics of Greenside No. 2 seam coal TI - The liberation characteristics of Greenside No. 2 seam coal UR - http://hdl.handle.net/11427/22158 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22158
dc.identifier.vancouvercitationHarris MC. The liberation characteristics of Greenside No. 2 seam coal. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1987 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22158en_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.otherCoal - Research - South Africaen_ZA
dc.subject.otherCoal - South Africa - Analysisen_ZA
dc.subject.otherChemical Engineeringen_ZA
dc.titleThe liberation characteristics of Greenside No. 2 seam coalen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMSc (Eng)en_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_1987_harris_martin_colquhoun.pdf
Size:
3.2 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters