Influence of open circuit regrind milling on UG-2 ore composition and mineralogy at Impala’s UG-2 concentrator

Characterisation and Flotation of a Weathered Platinum Group Metal Ore

“…Choice of reagents used depends on the mineralogy of the ore. Apart from high PGM recoveries, it is necessary to monitor the amount of chromite that ends up in the final concentrate. Most smelters are designed to accept a certain amount of chromite (around 3 modal %) in the PGM concentrate [5,6].Where the amount of chromite exceeds 3%, the PGE grade in the flotation concentrate is reduced with significant consequences for the downstream processes [7,8].…”

Mineralogical characterisation of naturally floatable gangue in Merensky Reef ore flotation

“…The benefits obtained by commissioning process mineralogy studies are not only encompassed by the improved understanding of the system, but also include tangible outcomes such as improved recovery, circuit design and selectivity (Lotter et al, 2002;Nel et al, 2005;Charland et al, 2006;Lastra, 2007). Therefore, the objective of this process mineralogy study is to use quantitative mineralogical analysis as a tool to investigate and identify the mineralogical nature of naturally floating gangue in Merensky Reef ore flotation.…”

Extraction of platinum group metals from catalytic converters

“… [ 63 , 67 , 79 ] Cu–Ni sulfide ore Hydro separator, gravity concentration Tetraferroplatinum, cooperite, sperrylite [ 80 ] PGM minerals associated with Fe Gravity and magnetic separation Nickelferroplatinum, retraferroplatinum, tulameenite [ 81 ] Chromite-hosted ore (PGM-containing) Crushing, flash flotation, froth flotation Cooperite, malanite, laurite, braggit, etc. [ 63 , 64 , 66 , 67 , 82 ] Cu–Ni sulfide deposit in Noril'sk Flotation Rustunbergite, isoferroplatinum, cooperite, etc. [ 63 , 67 , 83 ] BMS-hosted ore (PGM-containing) Crushing, flotation, micro flotation Palladium, sperrylite, Isoferroplatinum, etc.…”