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The liberation characteristics of Greenside No. 2 seam coal
Bibliography: pages 116-119.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2016
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| _version_ | 1867613450586292224 |
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| access_status_str | Open Access |
| author | Harris, Martin Colquhoun |
| author2 | Franzidis, Jean-Paul |
| author_browse | Franzidis, Jean-Paul Harris, Martin Colquhoun |
| author_facet | Franzidis, Jean-Paul Harris, Martin Colquhoun |
| author_sort | Harris, Martin Colquhoun |
| collection | Thesis |
| description | Bibliography: pages 116-119. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/22158 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:36:20.799Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Chemical Engineering |
| publisherStr | Department of Chemical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/22158 The liberation characteristics of Greenside No. 2 seam coal Harris, Martin Colquhoun Franzidis, Jean-Paul Coal - Research - South Africa Coal - South Africa - Analysis Chemical Engineering Bibliography: pages 116-119. 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. 2016-10-16T09:50:24Z 2016-10-16T09:50:24Z 1987 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/22158 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Coal - Research - South Africa Coal - South Africa - Analysis Chemical Engineering Harris, Martin Colquhoun The liberation characteristics of Greenside No. 2 seam coal |
| thesis_degree_str | Master's |
| title | The liberation characteristics of Greenside No. 2 seam coal |
| title_full | The liberation characteristics of Greenside No. 2 seam coal |
| title_fullStr | The liberation characteristics of Greenside No. 2 seam coal |
| title_full_unstemmed | The liberation characteristics of Greenside No. 2 seam coal |
| title_short | The liberation characteristics of Greenside No. 2 seam coal |
| title_sort | liberation characteristics of greenside no 2 seam coal |
| topic | Coal - Research - South Africa Coal - South Africa - Analysis Chemical Engineering |
| url | http://hdl.handle.net/11427/22158 |
| work_keys_str_mv | AT harrismartincolquhoun theliberationcharacteristicsofgreensideno2seamcoal AT harrismartincolquhoun liberationcharacteristicsofgreensideno2seamcoal |