Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model
Currently there is no process model which simulates the behaviour of gravity recoverable gold (GRG) in flash flotation unit operation. Once developed, such a flash float model could be incorporated into an existing model for gravity concentration. Together, the integrated gravity recovery-flash floa...
| Main Authors: | , , |
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| Format: | Journal Article |
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Elsevier
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/23545 |
| _version_ | 1848751180884213760 |
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| author | McGrath, Teresa Staunton, William Eksteen, Jacques |
| author_facet | McGrath, Teresa Staunton, William Eksteen, Jacques |
| author_sort | McGrath, Teresa |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Currently there is no process model which simulates the behaviour of gravity recoverable gold (GRG) in flash flotation unit operation. Once developed, such a flash float model could be incorporated into an existing model for gravity concentration. Together, the integrated gravity recovery-flash float model will provide a tool for predicting the recovery of GRG in a closed milling circuit using both batch centrifugal concentration and flash flotation. In order to design a flash flotation model, a reliable laboratory method to characterise the response of GRG when subjected to flash flotation conditions has been developed. This paper details the evaluation of the effects of various chemical (reagent concentrations, sulfide presence, etc.) and operational (airflow, agitation, etc.) parameters on the overall GRG recovery by lab scale flash flotation. Of the factors evaluated, free gold flotation was found to be most impacted by potassium amyl xanthate (PAX) and copper sulfate reagent levels, as well as agitation speed and sulfide mineral additions. |
| first_indexed | 2025-11-14T07:48:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-23545 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:48:38Z |
| publishDate | 2013 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-235452017-09-13T15:59:26Z Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model McGrath, Teresa Staunton, William Eksteen, Jacques Gravity concentration Froth flotation Gold ores Mineral processing Currently there is no process model which simulates the behaviour of gravity recoverable gold (GRG) in flash flotation unit operation. Once developed, such a flash float model could be incorporated into an existing model for gravity concentration. Together, the integrated gravity recovery-flash float model will provide a tool for predicting the recovery of GRG in a closed milling circuit using both batch centrifugal concentration and flash flotation. In order to design a flash flotation model, a reliable laboratory method to characterise the response of GRG when subjected to flash flotation conditions has been developed. This paper details the evaluation of the effects of various chemical (reagent concentrations, sulfide presence, etc.) and operational (airflow, agitation, etc.) parameters on the overall GRG recovery by lab scale flash flotation. Of the factors evaluated, free gold flotation was found to be most impacted by potassium amyl xanthate (PAX) and copper sulfate reagent levels, as well as agitation speed and sulfide mineral additions. 2013 Journal Article http://hdl.handle.net/20.500.11937/23545 10.1016/j.mineng.2013.08.004 Elsevier restricted |
| spellingShingle | Gravity concentration Froth flotation Gold ores Mineral processing McGrath, Teresa Staunton, William Eksteen, Jacques Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| title | Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| title_full | Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| title_fullStr | Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| title_full_unstemmed | Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| title_short | Development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| title_sort | development of a laboratory test to characterise the behaviour of free gold for use in a combined flash flotation and gravity concentrator model |
| topic | Gravity concentration Froth flotation Gold ores Mineral processing |
| url | http://hdl.handle.net/20.500.11937/23545 |