A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations
Flotation performance of gold-bearing pyrite in refractory gold ores depend upon the interplay among process water chemistry, grinding chemistry, and ore mineralogy. The nature of pyrite itself (finely disseminated reactive pyrite vs. low reactivity) also plays a role in its surface reactivity. This...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/29744 |
| _version_ | 1848752887215161344 |
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| author | Rabieh, Alireza Albijanic, Boris Eksteen, Jacques |
| author_facet | Rabieh, Alireza Albijanic, Boris Eksteen, Jacques |
| author_sort | Rabieh, Alireza |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Flotation performance of gold-bearing pyrite in refractory gold ores depend upon the interplay among process water chemistry, grinding chemistry, and ore mineralogy. The nature of pyrite itself (finely disseminated reactive pyrite vs. low reactivity) also plays a role in its surface reactivity. This paper reviews the experimental studies examining the interactions between grinding media, gold bearing pyrites and process water occurring during grinding of refractory gold ores and the effect of these interactions on flotation response of pyrite. The literature review reveals that the interactions are highly convoluted. It appears that the galvanic interactions between forged steel media and sulfide minerals ores are particularly significant after grinding of massive sulfide ores. Process water chemistry can also have an amplifying effect, as the process water becomes more laden with cyanide species and other ionic species. This paper should contribute an improved understanding of electrochemical and chemical processes occurring during the grinding of refractory gold ores, which is essential to improve flotation performance of pyrite. Judgement is reserved with regards to the overall economics associated with the use of various grinding media. Media consumption due to wear will have to be balanced against flotation recovery of gold bearing sulfides and whole circuit behaviour where gold in tailing may also be further recovered through leach processes. |
| first_indexed | 2025-11-14T08:15:45Z |
| format | Journal Article |
| id | curtin-20.500.11937-29744 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:15:45Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-297442018-04-12T03:45:12Z A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations Rabieh, Alireza Albijanic, Boris Eksteen, Jacques Flotation performance of gold-bearing pyrite in refractory gold ores depend upon the interplay among process water chemistry, grinding chemistry, and ore mineralogy. The nature of pyrite itself (finely disseminated reactive pyrite vs. low reactivity) also plays a role in its surface reactivity. This paper reviews the experimental studies examining the interactions between grinding media, gold bearing pyrites and process water occurring during grinding of refractory gold ores and the effect of these interactions on flotation response of pyrite. The literature review reveals that the interactions are highly convoluted. It appears that the galvanic interactions between forged steel media and sulfide minerals ores are particularly significant after grinding of massive sulfide ores. Process water chemistry can also have an amplifying effect, as the process water becomes more laden with cyanide species and other ionic species. This paper should contribute an improved understanding of electrochemical and chemical processes occurring during the grinding of refractory gold ores, which is essential to improve flotation performance of pyrite. Judgement is reserved with regards to the overall economics associated with the use of various grinding media. Media consumption due to wear will have to be balanced against flotation recovery of gold bearing sulfides and whole circuit behaviour where gold in tailing may also be further recovered through leach processes. 2016 Journal Article http://hdl.handle.net/20.500.11937/29744 10.1016/j.mineng.2016.04.012 Elsevier restricted |
| spellingShingle | Rabieh, Alireza Albijanic, Boris Eksteen, Jacques A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| title | A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| title_full | A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| title_fullStr | A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| title_full_unstemmed | A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| title_short | A review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| title_sort | review of the effects of grinding media and chemical conditions on the flotation of pyrite in refractory gold operations |
| url | http://hdl.handle.net/20.500.11937/29744 |