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The implications of froth structure and surface appearance for flotation performance
Includes bibliographical references (p. 166-170).
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Chemical Engineering
2014
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| _version_ | 1867613617152589824 |
|---|---|
| access_status_str | Open Access |
| author | Hatfield, Douglas |
| author2 | Bradshaw, Dee |
| author_browse | Bradshaw, Dee Hatfield, Douglas |
| author_facet | Bradshaw, Dee Hatfield, Douglas |
| author_sort | Hatfield, Douglas |
| collection | Thesis |
| description | Includes bibliographical references (p. 166-170). |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/5321 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:38:59.649Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| 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:11427/5321 The implications of froth structure and surface appearance for flotation performance Hatfield, Douglas Bradshaw, Dee De Jager, Gerhard Chemical Engineering Includes bibliographical references (p. 166-170). In this work, the flotation step of mineral extraction has been investigated to determine the mechanisms through which input variables impact on flotation separation efficiency and, in particular, the froth zone in flotation. The novel contribution of the work is in terms of demonstrating the importance of solids in governing the froth stability and hence the froth structure. Further, it has been propsed that the two most important factors that determine the impact of the solids on the froth are the degree of particle coverage on the bubble surface and the particle hydrophobicity. The mechanism through which the solids affect the froth stability has been demonstrated through experimental observations of flotation metullurgical performance, measurement of the froth surface appearance using machine vision and froth modelling. The insight obtained through understanding of the influence of solids on the froth zone will yield improved design and operation of industrial flotation circuits. 2014-07-31T11:09:35Z 2014-07-31T11:09:35Z 2006 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/5321 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Hatfield, Douglas The implications of froth structure and surface appearance for flotation performance |
| thesis_degree_str | Doctoral |
| title | The implications of froth structure and surface appearance for flotation performance |
| title_full | The implications of froth structure and surface appearance for flotation performance |
| title_fullStr | The implications of froth structure and surface appearance for flotation performance |
| title_full_unstemmed | The implications of froth structure and surface appearance for flotation performance |
| title_short | The implications of froth structure and surface appearance for flotation performance |
| title_sort | implications of froth structure and surface appearance for flotation performance |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/5321 |
| work_keys_str_mv | AT hatfielddouglas theimplicationsoffrothstructureandsurfaceappearanceforflotationperformance AT hatfielddouglas implicationsoffrothstructureandsurfaceappearanceforflotationperformance |