
An overview of Southern African PGM smelting
primary smelter of platinum group metals is Stillwater Mining of Montana, USA, ... by Anglo Platinum, but Merensky and UG2 ores are processed by all the producers. These ores are quite different from each other, and require different approaches to metallurgical processing. For example, UG2 ore has a much lower content of nickel and copper sulphides, and contains .