This article describes the complex and lengthy cycle of operations required to effect complete recovery of the six platinum metals and to yield at the same time electrolytically refined copper and nickel.

2024年2月15日 · The beneficiation process for platinum group metal (PGM) ores involves a sequence of grinding, gravity separation, and flotation treatments. Achieving the best possible recovery hinges on attaining the desired level of liberation of PGM minerals.

2018年2月21日 · Processing of PGM involves comminution, flotation, smelting, converting, base metals refinery and precious metals refinery. Due to increasing chrome content in the feed and the challenges associated with operating high chrome feed, alternative routes to smelting of PGM are being investigated. Some hydrometallurgical routes have been proposed.

2018年7月4日 · Current practice for the recovery of platinum group metals (PGM) from flotation concentrates is by energy-intensive smelting processes followed by separation and refining of the base and...

2018年1月6日 · A conventional flotation-smelting process has been proposed to recover the platinum group metal (PGM) values from the sulfide ores.

Wet concentrate is fed through a flash drying process utilising coal-fired, fluidised bed hot-gas generators, to produce dry feed material for the electric furnaces and slag-cleaning furnace. For primary smelting, two electric furnaces are used, each with a rated capacity of 34MW.

Northam uses a very conventional smelting process. Merensky concentrate (together with up to 10 per cent UG2 concentrate) is dried in a flash drier, and the dry feed is pneumatically fed to the furnace. Burnt limestone is used as a flux.

2015年7月1日 · The Platsol® is a single step pressure leaching process developed at SGS (formerly Société Générale de Surveillance) by International PGM Technologies, to recover platinum group metals, gold and base metals such as Cu, Ni and Co from a variety of high and low-grade ores, concentrates, mattes, auto-catalysts and other industrial products ...

The Kell Process has been developed for the extraction of platinum group metals (PGMs)and base metals from sulphide flotation concentrates. The process has been successfully tested on several different sulphide flotation concentrates, including those from the UG2 chromitite horizon and the Platreef mafic/ultramafic layer.

2017年7月10日 · The smelting process has a good overall recovery of the metals despite higher energy consumption, possible adverse environmental impacts caused by the collector used (e.g., lead), and potential losses of PGMs because of the operation and equipment deficiency.