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An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia
Bioleaching is now well established for extraction of copper from its low-grade, mixed oxide/sulphide ores in bioheap operations (Watling, 2006). It is claimed bioleaching may be a cheaper alternative to other traditional metal extraction techniques such as smelting and therefore more suitable to tr...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2023
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| _version_ | 1867613612986597376 |
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| access_status_str | Open Access |
| author | Manchisi, James |
| author2 | Hansford, Geoff |
| author_browse | Hansford, Geoff Manchisi, James |
| author_facet | Hansford, Geoff Manchisi, James |
| author_sort | Manchisi, James |
| collection | Thesis |
| description | Bioleaching is now well established for extraction of copper from its low-grade, mixed oxide/sulphide ores in bioheap operations (Watling, 2006). It is claimed bioleaching may be a cheaper alternative to other traditional metal extraction techniques such as smelting and therefore more suitable to treat marginal or low-grade ores where high-grade mineral reserves have been depleted. But the degree of microbial oxidation for different copper sulphides varies significantly partly because of different types and level of impurity minerals associated with copper sulphides from different sources. Several authors have reported different mineral leaching kinetics data on account of variability of mineralogical composition and different solution conditions and leaching systems being employed. This has indicated that further work was necessary to determine the kinetics of copper extraction, extent of mineral dissolution and effects of some leaching variables on copper dissolution for an ore from Nchanga mine under various solution conditions. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/38261 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:38:55.676Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| 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:11427/38261 An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia Manchisi, James Hansford, Geoff Simukanga, S Chemical Engineering Bioleaching is now well established for extraction of copper from its low-grade, mixed oxide/sulphide ores in bioheap operations (Watling, 2006). It is claimed bioleaching may be a cheaper alternative to other traditional metal extraction techniques such as smelting and therefore more suitable to treat marginal or low-grade ores where high-grade mineral reserves have been depleted. But the degree of microbial oxidation for different copper sulphides varies significantly partly because of different types and level of impurity minerals associated with copper sulphides from different sources. Several authors have reported different mineral leaching kinetics data on account of variability of mineralogical composition and different solution conditions and leaching systems being employed. This has indicated that further work was necessary to determine the kinetics of copper extraction, extent of mineral dissolution and effects of some leaching variables on copper dissolution for an ore from Nchanga mine under various solution conditions. 2023-08-22T12:33:35Z 2023-08-22T12:33:35Z 2007 2023-08-22T12:32:56Z Master Thesis Masters MSc http://hdl.handle.net/11427/38261 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment |
| spellingShingle | Chemical Engineering Manchisi, James An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia |
| thesis_degree_str | Master's |
| title | An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia |
| title_full | An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia |
| title_fullStr | An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia |
| title_full_unstemmed | An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia |
| title_short | An investigation into the feasibility of bioleaching copper sulphide ore of Nchanga mine, Chingola, Zambia |
| title_sort | investigation into the feasibility of bioleaching copper sulphide ore of nchanga mine chingola zambia |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/38261 |
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