platinum group flotation

Platinum - Palladium Flotation

The platinum-group metal content was more than twice that of a rougher concentrate, and the Al2O3 and CaO contents were significantly lower (see table 7). Because flotation concentrates would be subsequently treated by smelting-leaching or direct leaching techniques to recover platinum-group …

Flotation of platinum group metal ore materials - Newmont ...

A method for flotation processing a platinum group metal ore material including a sheet silicate mineral having a natural tendency to float during flotation processing to prepare a platinum group metal concentrate, the method comprising: flotation of a feed of the ore material to produce a flotation concentrate enriched in platinum group metal ...

Characterisation and Flotation of a Weathered Platinum ...

Keywords: Platinum Group Metals, Flotation, Selectivity Index, Upper Group, Weathered Ores. 1. Introduction The Bushveld Igneous Complex (BIC) of South Africa has the world's largest reserves of platinum group metals (PGMs) found in the Merensky, Upper Group 2 (UG2) and Platreefs [1]. Due to depletion of high grade ore in the Merensky reef and

Extraction of Platinum Group Metals | IntechOpen

About 80% of the worlds' reserves for platinum group metals (PGMs) are in South Africa's Bushveld Igneous Complex. 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 …

Platinum-Group Metal Ores - an overview | ScienceDirect Topics

Srdjan M. Bulatovic, in Handbook of Flotation Reagents: Chemistry, Theory and Practice, 2010 Publisher Summary. This chapter discusses various aspects of PGM (platinum group metal) ores. In general, PGM ores are concentrates in the crust found in two different ways, by leaching the metal-rich lava (mantle) deposited into the crust, which is known as chemical weathering, especially in a hot ...

Platinum - Palladium Flotation

Platinum & Palladium Ore Flotation Pilot Plant

These data indicate that a technically feasible process for producing a platinum-group-metal-bearing sulfide concentrate from serpentinized ore from the Stillwater Complex is available. by David November 29, 2018 September 8, 2018 Categories Flotation Tags 984 …

Bacterial Preoxidation of Stillwater Complex, MT, Platinum ...

Bacterial Preoxidation of Stillwater Complex, MT, Platinum-Group Metal Flotation Concentrate and Recovery of Platinum- Group Metals by Cyanidation and Other Leachants By D. L. Yopps and E. G. Baglin UNITED STATES DEPARTMENT OF THE INTERIOR P-

Ion Flotation Studies and Separation Procedures for the ...

flotation properties of the platinum group metals, develop methods for the quantitative recovery of the platinum metals from dilute solutions by ion flotation and investigate the feasibility of ion flotation for the group separation. The anionic chlorocomplexes of Pd(II), Ir(IV), Pt(IV), Au(III), Rh(III) and Ir(III) were floated from aqueous

Treatment of Platinum Flotation Products | Johnson Matthey ...

A flowsheet for treating flotation concentrates produced from low-sulfide platinum-containing ores has been developed. It provides low consumption of cheap reagents, complete water circulation and gives a high recovery of platinum group metals and non-ferrous metals into rich concentrates. These are then suitable for refining.

Characterizing and recovering the platinum group minerals ...

In those magmatic deposits where platinum-group elements are intimately associated with the base metal sulphides, flotation is used as the first recovery process. Although high recovery, usually between 80% and 95%, can be obtained, the grade of concentrates so obtained is still quite low, which need further upgrade.

US6679383B2 - Flotation of platinum group metal ore ...

Provided is a method involving flotation of a feed of platinum group metal ore material to prepare a platinum group metal concentrate during mineral processing operations. Prior to and/or during the flotation, a lead-containing activator reagent and a xanthate collector reagent are added to the slurry and during the flotation, an oxygen-deficient flotation gas, such as nitrogen gas, is used.

pH Control in Flotation of PGM Platinum Group Metal Ores ...

Hello, in the flotation of Platinum Group Metal Ores, is it considered wise or cost effective to introduce pH control? Is there any mine that mine PGMs that does pH control in their metallurgical plants? The reason why i ask is because i did some test works. I wanted to check the relationship between grade, recovery, mass pull against pH.(note ...

Investigations into the Recovery of Platinum Group ...

In the flotation of platinum group minerals (PGMs) it has generally been assumed that they will behave similarly to base metal sulfides and thus sulfide reagent regimes are generally used in such flotation plants. However the tellurides and arsenides of platinum and palladium contribute about 50% of the PGMs present in the Platreef ore, located in the northern limb of the Bushveld Complex of ...

Recovery of Platinum, Palladium, and Gold From Stillwater ...

platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM re source. Development of a suitable extraction technique will contribute to its exploitation. The concentrate was roasted at 1,050° C to convert