Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs)

dc.contributor.authorCorin, Kirsten C
dc.contributor.authorMcFadzean, Belinda J
dc.contributor.authorShackleton, Natalie J
dc.contributor.authorO’Connor, Cyril T
dc.date.accessioned2021-10-13T09:06:06Z
dc.date.available2021-10-13T09:06:06Z
dc.date.issued2021-05-18
dc.date.updated2021-05-24T15:09:30Z
dc.description.abstractIn order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) are contained which include sulphides, arsenides, tellurides, and ferroalloys among others, while at the same time ensuring the optimal depression of gangue minerals. In order to achieve this, comminution circuits usually consist of two or three stages of milling, in which the first stage is autogeneous, followed by ball milling. Further liberation is achieved in subsequent stages using ultra-fine grinding. Each comminution stage is followed by flotation in the so-called MF2 or MF3 circuits. While this staged process increases overall recoveries, overgrinding may occur, hence creating problems associated with fine particle flotation. This paper presents an overview of the mineralogy of most of the more significant PGM ores processed in South Africa and the various technologies used in comminution circuits. The paper then summarises the methodology used in flotation circuits to optimise recovery of fine particles in terms of the collectors, depressants, and frothers used. The effect of entrainment, slimes coating, changes in rheology caused by the presence of a significant amount of fines and of chromite recovery is addressed.en_US
dc.identifier10.3390/min11050533
dc.identifier.apacitationCorin, K. C., McFadzean, B. J., Shackleton, N. J., & (2021). Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs). <i>Minerals</i>, 11(5), 533. http://hdl.handle.net/11427/35223en_ZA
dc.identifier.chicagocitationCorin, Kirsten C, Belinda J McFadzean, Natalie J Shackleton, and "Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs)." <i>Minerals</i> 11, 5. (2021): 533. http://hdl.handle.net/11427/35223en_ZA
dc.identifier.citationCorin, K.C., McFadzean, B.J., Shackleton, N.J. & 2021. Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs). <i>Minerals.</i> 11(5):533. http://hdl.handle.net/11427/35223en_ZA
dc.identifier.ris TY - Journal Article AU - Corin, Kirsten C AU - McFadzean, Belinda J AU - Shackleton, Natalie J AU - O’Connor, Cyril T AB - In order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) are contained which include sulphides, arsenides, tellurides, and ferroalloys among others, while at the same time ensuring the optimal depression of gangue minerals. In order to achieve this, comminution circuits usually consist of two or three stages of milling, in which the first stage is autogeneous, followed by ball milling. Further liberation is achieved in subsequent stages using ultra-fine grinding. Each comminution stage is followed by flotation in the so-called MF2 or MF3 circuits. While this staged process increases overall recoveries, overgrinding may occur, hence creating problems associated with fine particle flotation. This paper presents an overview of the mineralogy of most of the more significant PGM ores processed in South Africa and the various technologies used in comminution circuits. The paper then summarises the methodology used in flotation circuits to optimise recovery of fine particles in terms of the collectors, depressants, and frothers used. The effect of entrainment, slimes coating, changes in rheology caused by the presence of a significant amount of fines and of chromite recovery is addressed. DA - 2021-05-18 DB - OpenUCT DP - University of Cape Town IS - 5 J1 - Minerals LK - https://open.uct.ac.za PY - 2021 T1 - Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs) TI - Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs) UR - http://hdl.handle.net/11427/35223 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/35223
dc.identifier.vancouvercitationCorin KC, McFadzean BJ, Shackleton NJ, . Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs). Minerals. 2021;11(5):533. http://hdl.handle.net/11427/35223.en_ZA
dc.language.isoenen_US
dc.publisher.departmentDepartment of Chemical Engineering
dc.publisher.facultyCentre for Higher Education Developmenten_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceMineralsen_US
dc.source.journalissue5en_US
dc.source.journalvolume11en_US
dc.source.pagination533en_US
dc.source.urihttps://www.mdpi.com/journal/minerals
dc.titleChallenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs)en_US
dc.typeJournal Articleen_US
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