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Biooxidation of a gold bearing arsenopyrite/pyrite concentrate
The objectives of this project have been to characterise the biooxidation of an auriferous pyrite/arsenopyrite flotation concentrate, and to interpret laboratory batch and continuous pilot plant data in the light of the logistic model. Furthermore, the possibility of predicting continuous biooxidati...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2016
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| _version_ | 1867614393115607040 |
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| access_status_str | Open Access |
| author | Miller, D M |
| author2 | Hansford, Geoffrey Spearing |
| author_browse | Hansford, Geoffrey Spearing Miller, D M |
| author_facet | Hansford, Geoffrey Spearing Miller, D M |
| author_sort | Miller, D M |
| collection | Thesis |
| description | The objectives of this project have been to characterise the biooxidation of an auriferous pyrite/arsenopyrite flotation concentrate, and to interpret laboratory batch and continuous pilot plant data in the light of the logistic model. Furthermore, the possibility of predicting continuous biooxidation plant performance from batch data was considered. The batch testing was carried out on five narrowly sized fractions of Fairview concentrate, as well as on the bulk concentrate. Extents of removal of iron, arsenic and sulphide-sulphur were described by the logistic equation and values of the kinetic parameters obtained. Maximum rates of removal of these components, predicted by the logistic parameters, correlated well with experimentally determined rates of removal obtained from the linear portions of the fractional removal versus time curves.
Bibliography: pages 93-98. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/18299 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:51:19.665Z |
| 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:11427/18299 Biooxidation of a gold bearing arsenopyrite/pyrite concentrate Miller, D M Hansford, Geoffrey Spearing Chemical Engineering Gold - Metallurgy Oxidation The objectives of this project have been to characterise the biooxidation of an auriferous pyrite/arsenopyrite flotation concentrate, and to interpret laboratory batch and continuous pilot plant data in the light of the logistic model. Furthermore, the possibility of predicting continuous biooxidation plant performance from batch data was considered. The batch testing was carried out on five narrowly sized fractions of Fairview concentrate, as well as on the bulk concentrate. Extents of removal of iron, arsenic and sulphide-sulphur were described by the logistic equation and values of the kinetic parameters obtained. Maximum rates of removal of these components, predicted by the logistic parameters, correlated well with experimentally determined rates of removal obtained from the linear portions of the fractional removal versus time curves. Bibliography: pages 93-98. 2016-03-28T14:38:07Z 2016-03-28T14:38:07Z 1990 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/18299 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Gold - Metallurgy Oxidation Miller, D M Biooxidation of a gold bearing arsenopyrite/pyrite concentrate |
| thesis_degree_str | Master's |
| title | Biooxidation of a gold bearing arsenopyrite/pyrite concentrate |
| title_full | Biooxidation of a gold bearing arsenopyrite/pyrite concentrate |
| title_fullStr | Biooxidation of a gold bearing arsenopyrite/pyrite concentrate |
| title_full_unstemmed | Biooxidation of a gold bearing arsenopyrite/pyrite concentrate |
| title_short | Biooxidation of a gold bearing arsenopyrite/pyrite concentrate |
| title_sort | biooxidation of a gold bearing arsenopyrite pyrite concentrate |
| topic | Chemical Engineering Gold - Metallurgy Oxidation |
| url | http://hdl.handle.net/11427/18299 |
| work_keys_str_mv | AT millerdm biooxidationofagoldbearingarsenopyritepyriteconcentrate |