concentration of platinum group metals with flotation
Welcome to the broken dawn

concentration of platinum group metals with flotation

Platinum - Palladium Flotation

2017-6-24  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).

Read More
Recover PGM by Matte Smelting and Leaching

2021-1-6  Concentration by froth flotation was investigated by the Bureau of Mines because the platinum-group-bearing sulfides occur as fine grains and require grinding to approximately 200 mesh for liberation. Recovery of 80 to 90 pct of the Pt-Pd values was achieved from an acidified pulp with a mercaptobenzothiazole collector.

Read More
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.

Read More
Ion Flotation Studies and Separation Procedures for the ...

2018-5-3  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

Read More
Characterizing and recovering the platinum group

2004-9-1  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.

Read More
INVESTIGATION OFTHELEACHING OF THEPLATINUM-

2021-3-26  The dissolution of platinum-group metals (PGMs) requires a high chloride ion concentration inanacidic solution andasuitable oxidant. AtImpala Platinum Refinery, the concentrate is leached in a hydrochloric acid solution using chlorine gas as the oxidant. The goal ofthisleaching stepisatotal dissolution ofthePGMs and gold.

Read More
Chapter 6.11 Platinum - World Health Organization

2013-10-10  Platinum, together with the other platinum group metals, is present at low levels in the lithosphere, with an average platinum concentration of 0.001–0.005 mg/kg (4). Concentrates of economic importance are present in the Transvaal, South Africa, in Siberia and in the Urals at

Read More
Recovery of Platinum Group Metals from Spent Catalysts ...

2018-5-7  The recovery of platinum group metals (PGMs) from spent automobile catalysts is a difficult process because of their relatively low contents in the scrap. In this study, to improve the efficiency of the existing recycling techniques, a novel physical concentration method involving treatment with FeCl2 vapor has been examined. The reactions occurring between typical catalyst components and ...

Read More
Ion flotation studies of the chlorocomplexes of some ...

1980-11-1  The anionic chlorocomplexes of Au(III), Pt(IV), Pd(II), Ir(IV), Ir(III) and Rh(III) can be floated from aqueous solutions with cationic surfactants of

Read More
Ion Flotation Studies and Separation Procedures for the ...

2018-5-3  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

Read More
INVESTIGATION OFTHELEACHING OF THEPLATINUM-

2021-3-26  The dissolution of platinum-group metals (PGMs) requires a high chloride ion concentration inanacidic solution andasuitable oxidant. AtImpala Platinum Refinery, the concentrate is leached in a hydrochloric acid solution using chlorine gas as the oxidant. The goal ofthisleaching stepisatotal dissolution ofthePGMs and gold.

Read More
Investigations into the Recovery of Platinum Group ...

2021-11-18  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 ...

Read More
(PDF) Trithiocarbonates for PGM flotation

Abstract. Small replacements of C12-trithiocarbonate (C12-TTC) for dithiocarbonate DTC)/dithiophosphate (DTP) in a reagent suite for the flotation of platinum group metals (PGM) have significantly ...

Read More
Extraction and Refining of the Platinum Metals Johnson ...

2021-11-26  From this stage onwards the concentration of the platinum group metals is more rapid and the processes entirely chemical. First the slime is subjected to roasting and leaching attacks to remove the last of the copper, nickel, iron and sulphur. This

Read More
Recovery of Platinum, Palladium, and Gold From

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

Read More
THE PRIMARY PRODUCTION OF PLATINUM GROUP

2020-1-24  The six platinum group metals (PGMs) occur together in nature alongside nickel and copper. Mineable deposits of PGMs are very rare, with annual production amounting to around 400 tonnes, several orders of magnitude lower than many common metals. Due to their economic values and higher quantities, platinum and palladium are the most important ...

Read More
A Critical Overview of Dithiophosphinate and ...

2019-1-7  Historically, as for most reagents used in flotation, the wide-spread use of dialkyl dithiophosphinates as collectors in practical applications has preceded a detailed scientific understanding of how they work. Dialkyl dithiophosphinates are a technologically and commercially important class of collectors used in the flotation processing of Cu-Au, complex polymetallic, and precious metal ores ...

Read More
Nano-Silica based mineral flotation frother: Synthesis and ...

2021-6-1  Flotation of Platinum Group metals. PGMs ores originated from an ore body along The Great Dyke in Zimbabwe. The Great Dyke holds the world’s 2nd largest reserves of Platinum Group Metals and chrome (Kotze, 2020). Ore samples and industrial flotation reagents were supplied by Mimosa Mining Company (Pvt) Ltd.

Read More
On the Management of Gangue Minerals in the Flotation

2018-12-5  The Bushveld Complex of South Africa contains almost 90% of the world’s reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to treat ever-decreasing grades of the relevant ore deposits. The major challenge in the flotation of these ore bodies is the control and management of the gangue minerals, particularly silicates ...

Read More
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.

Read More
Recovery of Platinum, Palladium, and Gold From

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

Read More
Ion Flotation Studies and Separation Procedures for the ...

2018-5-3  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

Read More
Potential Processing Routes for Recovery of Platinum

2017-11-6  The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries of over 85%. The achieved successes of PGM concentration by flotation from the pristine sulfide ores are largely due to the occurrence of PGMs in close association with base metal sulfide minerals like ...

Read More
Treatment of Platinum Flotation Products - ResearchGate

Platinum-group metals are produced by refining a concentrate of precious metals obtained from extractive metallurgical processes, such as those used by Inco, Ltd. , in the production of nickel.

Read More
On the Management of Gangue Minerals in the Flotation

2018-12-5  The Bushveld Complex of South Africa contains almost 90% of the world’s reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to treat ever-decreasing grades of the relevant ore deposits. The major challenge in the flotation of these ore bodies is the control and management of the gangue minerals, particularly silicates ...

Read More
Chapter 6.11 Platinum - World Health Organization

2013-10-10  Platinum, together with the other platinum group metals, is present at low levels in the lithosphere, with an average platinum concentration of 0.001–0.005 mg/kg (4). Concentrates of economic importance are present in the Transvaal, South Africa, in Siberia and in the Urals at

Read More
Magnetic Concentration of Platinum Group Metals from ...

2017-5-31  Spent automobile catalysts are the most important secondary source of platinum group metals (PGMs). However, effective recovery of PGMs from catalyst scraps is difficult because they are present in only small quantities as chemically stable substances. In this study, in order to improve the efficiency of the existing recycling processes, the authors experimentally investigated a novel physical ...

Read More
Recovery of precious metals from low concentration

Recovery of platinum group metals (PGM) from acidic solutions by reduction precipitation with sodium borohydride: 1994-04-19: Awadalla et al. 75/741: 5256187: Separation of precious metals by an ion exchange process: 1993-10-26: Gefvert: 75/717: 4885143: Method for the interseparation of platinum group metals: 1989-12-05: Schmuckler: 423/24 ...

Read More
A Critical Overview of Dithiophosphinate and ...

2019-1-7  Historically, as for most reagents used in flotation, the wide-spread use of dialkyl dithiophosphinates as collectors in practical applications has preceded a detailed scientific understanding of how they work. Dialkyl dithiophosphinates are a technologically and commercially important class of collectors used in the flotation processing of Cu-Au, complex polymetallic, and precious metal ores ...

Read More
Copyright © 2021.Company name All rights reserved.Dawn Broken