The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate
| dc.contributor.advisor | Hansford, Geoffrey Spearing | en_ZA |
| dc.contributor.author | Chapman, J T | en_ZA |
| dc.date.accessioned | 2016-03-14T07:16:28Z | |
| dc.date.available | 2016-03-14T07:16:28Z | |
| dc.date.issued | 1989 | en_ZA |
| dc.description | Bibliography: pages 125-136. | en_ZA |
| dc.description.abstract | The recent focus on bacterial leaching as a preoxidation step in the treatment of refractory gold bearing sulphide ores and concentrates, has created the need for kinetic models to adequately describe bacterial leaching reactor performance. This work is a kinetic study of the bacterial leaching of a refractory gold bearing, pyrite concentrate. The study includes the presentation of two mechanistically based, the shrinking particle and propagating pore (Hansford and Drossou, 1986), batch reactor kinetic models. These models are derived for single stage continuous reactor description. In addition, the empirical logistic growth model (Pinches et al., 1987) is presented for both batch and continuous reactor description. The models are correlated with the experimental data. Three narrow size fractions of the pyrite concentrate were subjected to batch and continuous bacterial oxidation, using a Thiobacillus ferrooxidans culture. Time profile data of the pyrite oxidation were obtained for the batch reactor study. Similarly, retention time profile data of pyrite oxidation was obtained for the single stage continuous reactor. The .gold extraction as a function of sulphide oxidation as well as fraction arsenic leached, was established. | en_ZA |
| dc.identifier.apacitation | Chapman, J. T. (1989). <i>The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/17706 | en_ZA |
| dc.identifier.chicagocitation | Chapman, J T. <i>"The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1989. http://hdl.handle.net/11427/17706 | en_ZA |
| dc.identifier.citation | Chapman, J. 1989. The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate. University of Cape Town. | en_ZA |
| dc.identifier.ris | TY - Thesis / Dissertation AU - Chapman, J T AB - The recent focus on bacterial leaching as a preoxidation step in the treatment of refractory gold bearing sulphide ores and concentrates, has created the need for kinetic models to adequately describe bacterial leaching reactor performance. This work is a kinetic study of the bacterial leaching of a refractory gold bearing, pyrite concentrate. The study includes the presentation of two mechanistically based, the shrinking particle and propagating pore (Hansford and Drossou, 1986), batch reactor kinetic models. These models are derived for single stage continuous reactor description. In addition, the empirical logistic growth model (Pinches et al., 1987) is presented for both batch and continuous reactor description. The models are correlated with the experimental data. Three narrow size fractions of the pyrite concentrate were subjected to batch and continuous bacterial oxidation, using a Thiobacillus ferrooxidans culture. Time profile data of the pyrite oxidation were obtained for the batch reactor study. Similarly, retention time profile data of pyrite oxidation was obtained for the single stage continuous reactor. The .gold extraction as a function of sulphide oxidation as well as fraction arsenic leached, was established. DA - 1989 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1989 T1 - The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate TI - The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate UR - http://hdl.handle.net/11427/17706 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/17706 | |
| dc.identifier.vancouvercitation | Chapman JT. The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1989 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17706 | en_ZA |
| dc.language.iso | eng | en_ZA |
| dc.publisher.department | Department of Chemical Engineering | en_ZA |
| dc.publisher.faculty | Faculty of Engineering and the Built Environment | |
| dc.publisher.institution | University of Cape Town | |
| dc.subject.other | Chemical Engineering | en_ZA |
| dc.subject.other | Leaching | en_ZA |
| dc.title | The batch and continuous bacterial leaching kinetics of a refractory gold-bearing pyrite concentrate | en_ZA |
| dc.type | Master Thesis | |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationname | MSc | en_ZA |
| uct.type.filetype | Text | |
| uct.type.filetype | Image | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Thesis | en_ZA |
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