flotation processing of pgms

  • 1 Froth FlotationFundamental Principles

    2009-8-27 · 1 Froth FlotationFundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air bubbles are then carried to the surface and

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  • Automated SEM study of PGM T distribution across a UG2

    2015-4-22 · PGMs in a process mineralogical context to aid metallurgical interpretation. This paper considers whether flotation indices determined for PGMs can be empirically validated using initial results from analysis of PGMs in a concentrate bank from a South African concentrator treating UG2 ore from the western limb of the Bushveld Complex.

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  • 1 Froth FlotationFundamental Principles

    2009-8-27 · 1 Froth FlotationFundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air bubbles are then carried to the surface and

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  • A review of investigations into the management of

    2018-10-4 · 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

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  • Investigating Ways of Improving Recovery of Slow

    2021-3-26 · slow floating minerals in a single stage (MF1) Platinum Group Metal milling and flotation plant at the Zimplats Selous Metallurgical Complex. This study was conducted with an aim of improving flotation of PGMs by measuring the slow floating ratio (SFR) and analysing the effect on grade and recoveries as dosages of flotation reagents are altered.

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  • Automated SEM study of PGM T distribution across a UG2

    2015-4-22 · PGMs in a process mineralogical context to aid metallurgical interpretation. This paper considers whether flotation indices determined for PGMs can be empirically validated using initial results from analysis of PGMs in a concentrate bank from a South African concentrator treating UG2 ore from the western limb of the Bushveld Complex.

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  • Hydrometallurgical treatment process for extraction of

    The invention claimed is 1. A hydrometallurgical process for extracting platinum group metals (PGMs) gold silver and base metals from a flotation concentrate the process comprising the steps of (a) subjecting the concentrate to modified pressure oxidation to selectively separate the base metals from the PGMs gold and silver in a sulfate medium wherein sulfide minerals are partially or

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  • Reagent Optimization across a UG2 Plantiaeng

    2013-4-30 · large PGMs processing operations because the correct improvement opportunities to flotation recovery and grade 5 6 . Also the cost of reagents typically runs into tens of millions of dollars per annum for a large PGMs operation and therefore reagent optimization presents a good

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  • THE FLOTATION OF HIGH TALC-CONTAINING ORE FROM

    2014-12-10 · flotation of talc prior to flotation of PGMs was tested to compare the two methods and the process flowsheet for this is shown in Figure 5.6. 1.2. PROBLEM STATEMENT There are two problems identified at the Mimosa Mine. They are (i) Low PGE recoveries (79 compared to the South African Merensky operation s recoveries of between 80 and 95

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  • A COMPLEMENTARY MILLING AND FLOTATION

    2013-10-1 · without violating the circuit s operational constraints. Additionally the frequency of flotation concentrate sump overflows was markedly decreased and the sump discharge was stabilised. The most interesting aspect of the control system was the linking of the milling and flotation circuits through a flotation feed density controller.

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  • Recovery of PGMs from an oxide ore by flotation and

    2021-3-26 · Froth flotation is the process used in the Platinum Group Metal industry to upgrade the run-of- mine ore for subsequent processes such as smelting and hydrometallurgical PGM refining. The

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  • A conceptual flowsheet for heap leaching of platinum

    2017-6-19 · when the PGMs occur as slow-floating minerals or when the PGMs are difficult to liberate the secondary cleaner flotation cells often produce a low-grade concentrate that can be associated 1 Tel 00 27 21 650 3804 Fax 00 27 21 650 5501 JM.Mwase uct.ac 2 Dr. JJ Eksteen is a Visiting Professor to the University of Stellenbosch South Africa

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  • Hydrometallurgical treatment process for extraction of

    The invention claimed is 1. A hydrometallurgical process for extracting platinum group metals (PGMs) gold silver and base metals from a flotation concentrate the process comprising the steps of (a) subjecting the concentrate to modified pressure oxidation to selectively separate the base metals from the PGMs gold and silver in a sulfate medium wherein sulfide minerals are partially or

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  • DOI 10.1595/147106704X1667 Treatment of Platinum

    metallurgical processing. Therefore the develop-ment of complex hydrometallurgical technology to recover pgms and non-ferrous metals from low-sulfide pgm-bearing ores has considerably simplified the treatment decreased the operating costs and improved the environmental conditions. Our investigations involved flotation concen-

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  • Recovery of PGMs from an oxide ore by flotation and

    2021-3-26 · Recovery of PGMs from an oxide ore by flotation and leaching Msc Research Thesis Prepared by Relebohile Sefako Student number flotation recoveries achieved using the sulphide co-collector schemes were 55.1 3E (Pt Pd and Au). Figure 4 Experimental flow diagram of oxidized PGM ore potential processing through sulfidisation

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  • THE FLOTATION OF HIGH TALC-CONTAINING ORE FROM

    2014-12-10 · flotation of talc prior to flotation of PGMs was tested to compare the two methods and the process flowsheet for this is shown in Figure 5.6. 1.2. PROBLEM STATEMENT There are two problems identified at the Mimosa Mine. They are (i) Low PGE recoveries (79 compared to the South African Merensky operation s recoveries of between 80 and 95

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  • Kell Process

    Kell Technology. The Kell Process has been developed for extraction of platinum group metals (PGM) gold silver and base metals from PGM sulfide flotation concentrates without smelting. The hydrometallurgical process has been successfully demonstrated on several different PGM and polymetallic concentrates including those from the UG2 Merensky and Platreef in South Africa Great

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  • Application of fundamentals in optimizing platinum

    2011-3-3 · secondary processing of the chromite and silicate-rich streams. Ultrafine grinding of tailing steams has also been introduced with grinds as fine as a P80 of 53 microns resulting in improved recoveries. A typical reagent suite for UG2 flotation includes an activator (CuSO 4) collector (SIBX) CMC depressant (carboxy methyl cellulose) and

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  • Characterisation and Flotation of a Weathered Platinum

    2020-1-8 · the PGE grade in the flotation concentrate is reduced with significant consequences for the downstream processes 7 8 . In this study a comprehensive characterisation of the weathered UG2 ore is presented and the effects of weathering on PGMs flotation efficiencies from MG4 are investigated.

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  • Feasibility Study on Physical Beneficiation of Low-Grade

    2015-3-4 · 2.75). PGMs in flotation tailings are either associated with silicates (60 ) or are free PGMs particles (10 ) while 30 of them are associated with sulphide minerals (pentlandite chalcopyrite pyrrhotite pyrite and millerite). On the basis of mineralogical data about 70 of total PGMs associated with silicates and native alloys

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  • (PDF) A review of pyrrhotite flotation chemistry in the

    Flotation with thiocarbonate collectorsThiocarbonates particularly xanthates are widely used as collectors for selective and bulk flotation of sulfide minerals from PGM ores. It has been found that PGM recovery in bulk flotation is limited in some instances by the poor flotation response of pyrrhotite.

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  • PGM extraction from oxidized ores using flotation and

    2019-12-12 · using flotation and leaching R. Sefako1 V. Sibanda1 and K. Sekgara1 Synopsis Flotation and leaching were investigated as possible processing routes for improving PGM recovery from a Southern African oxidized PGM ore. Different flotation reagent schemes and lixiviants were evaluated and their PGMs extraction response measured.

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  • PGM extraction from oxidized ores using flotation and

    2019-12-12 · using flotation and leaching R. Sefako1 V. Sibanda1 and K. Sekgara1 Synopsis Flotation and leaching were investigated as possible processing routes for improving PGM recovery from a Southern African oxidized PGM ore. Different flotation reagent schemes and lixiviants were evaluated and their PGMs extraction response measured.

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  • pH Control in Flotation of PGM Platinum Group Metal Ores

    2021-6-19 · Most flotation operations are alkaline since this minimizes corrosion and thus initial capital costs and ongoing maintenance. While it does depend on the nature of the ore of the ore that is being treated for example UG2 or Merensky pH control is rarely applied to these separations.

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  • Development of PGMs and Chrome Extraction Circuit

    2012-5-23 · chromatite levels whilst maintaining sustainable PGMs recovery. This was accomplished by installing a chrome extraction plant in the middle of the flotation circuit in order to benefit the increase in PGMs recovery from secondary circuit by lower tonnage to the mill hence more residence time and better grinding results.

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  • PGM extraction from oxidized ores using flotation and

    2019-12-12 · using flotation and leaching R. Sefako1 V. Sibanda1 and K. Sekgara1 Synopsis Flotation and leaching were investigated as possible processing routes for improving PGM recovery from a Southern African oxidized PGM ore. Different flotation reagent schemes and lixiviants were evaluated and their PGMs extraction response measured.

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  • DOI 10.1595/147106704X1667 Treatment of Platinum

    metallurgical processing. Therefore the develop-ment of complex hydrometallurgical technology to recover pgms and non-ferrous metals from low-sulfide pgm-bearing ores has considerably simplified the treatment decreased the operating costs and improved the environmental conditions. Our investigations involved flotation concen-

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  • Ammonia Leaching as a Pre-Treatment for the Processing

    2020-12-8 · conventional mineral processing technologies for the treatment of low grade oxidised PGM ores. The exposure of the ore to the atmosphere leads to the formation of an oxidation layer (consisting of base metal oxides) which inhibits the flotation process that requires a

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  • Hydrometallurgical processing of Platreef flotation

    Platinum producers are evaluating hydrometallurgical process routes to extract platinum group metals (PGM) and base metals (BM) from flotation concentrate that are alternative to conventional pyrometallurgical matte smelting treatment of flotation concentrates.

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  • Recovery of PGMs from an oxide ore by flotation and

    2021-3-26 · Recovery of PGMs from an oxide ore by flotation and leaching Msc Research Thesis Prepared by Relebohile Sefako Student number flotation recoveries achieved using the sulphide co-collector schemes were 55.1 3E (Pt Pd and Au). Figure 4 Experimental flow diagram of oxidized PGM ore potential processing through sulfidisation

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  • (PDF) A review of pyrrhotite flotation chemistry in the

    With regard to oxidation potential control the use of inert gas flotation for the processing of PGM ores has been demonstrated (Gathje and Simmons 2004) and is being evaluated further.Fig. 1 .1Contact angle at pyrrhotite surface as a function of pH at ambient temperature in 0.05 M Na 2 SO 4 solution and in the absence of collector (University

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  • Reagent Optimization across a UG2 Plantiaeng

    2013-4-30 · large PGMs processing operations because the correct improvement opportunities to flotation recovery and grade 5 6 . Also the cost of reagents typically runs into tens of millions of dollars per annum for a large PGMs operation and therefore reagent optimization presents a good

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  • The Geological Occurrence Mineralogy and Processing

    2021-1-7 · and flotation processing practice of treating PGMs in South Africa and Russia the world s leading producers of PGEs. 2. Geological Occurrence and Mineralogy of the Ore Bodies 2.1. South Africa In South Africa the PGM-bearing ores are found in the Bushveld Complex which contains extremely rich reserves of these minerals.

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  • Hydrometallurgical processing of Platreef flotation

    2011-5-1 · The objective of this testwork programme was to consider the potential for hydrometallurgical processing of Platreef flotation concentrate containing 1.5 g/t Pt 2.5 g/t Pd and 0.5 g/t Au 1.5 Ni and 1.2 Cu. Some twenty-two process flowsheet variants were evaluated in a testwork programme examining several conventional and proprietary unit

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  • chrome screen flotation process 」

    PGMs have extraordinary physical and chemicalflotation processes. There is a chrome plant that is installedperiod of ten minutes by using root 2 screen size analysis the top size being 300 Inquire Now mineral processing flotation equipment. Flotation is widely used in gold Processing. In China 80 rock gold is Processed by flotation.

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  • Hydrometallurgical processing of Platreef flotation

    2011-5-1 · Research highlights Assessed hydromet alternatives for processing low-grade high-Cr PGM concentrates. Kell Process POX-roast-HCl/Cl 2 separates Ni/Co/Cu sulfates and PGMs as chlorides. Roasting step modifies PGM phases increasing Pt leach recoveries by 17–45 . Un-optimized elemental deportments Ni 96 Co 94 Cu 94 Pt 96 Pd 94 Au 87 . Economic and environmental

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  • Reagent Optimization across a UG2 Plantiaeng

    2013-4-30 · large PGMs processing operations because the correct improvement opportunities to flotation recovery and grade 5 6 . Also the cost of reagents typically runs into tens of millions of dollars per annum for a large PGMs operation and therefore reagent optimization presents a good

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  • The PGM flotation predictor Predicting PGM ore flotation

    2015-5-18 · The PGM flotation predictor predicts PGM recovery by produc-ing an output based on the physical properties of all PGM-bearingparticles detected in the sample. These properties include mode ofoccurrence of the PGM (as per descriptions inTable 1) the float-ability of minerals associated with the PGM liberation index (i.e.proportion of floatable component in the particle) and particle/grain size.

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