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Investigating the relative adsorption of polymeric depressants on pure minerals
The aim of this study was to investigate the relative adsorption of polymeric depressants on pure minerals. The minerals used were talc, pyroxene, plagioclase, chromite and chalcopyrite and the depressants used were guar gum and carboxymethyl cellulose (CMC). It was hypothesised at the beginning of...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2015
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| _version_ | 1867613373608230912 |
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| access_status_str | Open Access |
| author | Mhlanga, Sabatha Sanele |
| author2 | McFadzean, Belinda |
| author_browse | McFadzean, Belinda Mhlanga, Sabatha Sanele |
| author_facet | McFadzean, Belinda Mhlanga, Sabatha Sanele |
| author_sort | Mhlanga, Sabatha Sanele |
| collection | Thesis |
| description | The aim of this study was to investigate the relative adsorption of polymeric depressants on pure minerals. The minerals used were talc, pyroxene, plagioclase, chromite and chalcopyrite and the depressants used were guar gum and carboxymethyl cellulose (CMC). It was hypothesised at the beginning of this study that polymeric depressants adsorb preferentially onto different minerals because of the differences in the surface charge of the minerals which arise as a result of their different chemical structures. Zeta potential measurements were conducted to establish exactly what these differences in surface charge were and what role metal ions in solution played in modifying the mineral surface charge and therefore changing the adsorption characteristics. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/11282 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:35:07.387Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| 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:11427/11282 Investigating the relative adsorption of polymeric depressants on pure minerals Mhlanga, Sabatha Sanele McFadzean, Belinda Chemical Engineering The aim of this study was to investigate the relative adsorption of polymeric depressants on pure minerals. The minerals used were talc, pyroxene, plagioclase, chromite and chalcopyrite and the depressants used were guar gum and carboxymethyl cellulose (CMC). It was hypothesised at the beginning of this study that polymeric depressants adsorb preferentially onto different minerals because of the differences in the surface charge of the minerals which arise as a result of their different chemical structures. Zeta potential measurements were conducted to establish exactly what these differences in surface charge were and what role metal ions in solution played in modifying the mineral surface charge and therefore changing the adsorption characteristics. 2015-01-04T14:38:02Z 2015-01-04T14:38:02Z 2011 Master Thesis Masters MSc http://hdl.handle.net/11427/11282 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Mhlanga, Sabatha Sanele Investigating the relative adsorption of polymeric depressants on pure minerals |
| thesis_degree_str | Master's |
| title | Investigating the relative adsorption of polymeric depressants on pure minerals |
| title_full | Investigating the relative adsorption of polymeric depressants on pure minerals |
| title_fullStr | Investigating the relative adsorption of polymeric depressants on pure minerals |
| title_full_unstemmed | Investigating the relative adsorption of polymeric depressants on pure minerals |
| title_short | Investigating the relative adsorption of polymeric depressants on pure minerals |
| title_sort | investigating the relative adsorption of polymeric depressants on pure minerals |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/11282 |
| work_keys_str_mv | AT mhlangasabathasanele investigatingtherelativeadsorptionofpolymericdepressantsonpureminerals |