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Pgm chromite fire assay

  • Precious Metals/Fire Assaying - Hazen Research
    Precious Metals/Fire Assaying - Hazen Research

    Hazen offers a full suite of services to those interested in assaying for precious metals and platinum group metals (PGMs). Please Contact us to obtain a quote for fire or gold assay, and to learn more about our PGM services and capabilities. Hazen's modern fire assay facility permits rapid turnaround time and a high rate of production. Hazen performs fire assay for analytical

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  • Diversity of PGM Assemblages at Kraubath: A Case
    Diversity of PGM Assemblages at Kraubath: A Case

    Diversity of PGM Assemblages at Kraubath: A Case Study of Mantle-Derived Chromitites from the Eastern Alps, Austria Kreshimir N. Malitch1,2 and Vladimir V. Knauf2 1Institute of Geological Sciences, University of Le oben,Peter Tunner Str. 5, A-8700 Leoben, Austria 2NATI Research JSC, Otechestvennaya 3-3a, St.-Petersburg, 195030, Russia e-mail: [email protected];

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  • Investigating the recoveries and grades of individual
    Investigating the recoveries and grades of individual

    The reef includes over 60% chromite (Merkle & McKenzie, 1994). PGM recovery is accompanied by the recovery of fine hydrophilic Cr 2 O 3. If present in amounts of over 1,5%, the chromite negatively impacts the ... Analysis of 6E PGM was carried out by fire assay, while the other elements were determined by ICP – OES (inductively coupled plasma

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  • Mineral Commodity Report 5 - Platinum Group Metals
    Mineral Commodity Report 5 - Platinum Group Metals

    The six platinum group metals (PGM) are platinum Pt, palladium Pd, rhodium Rh, iridium Ir, ruthenium Ru and ... inclusions in nickel-copper sulphide minerals and chromite, and as flattened, rounded detrital grains in placer deposits ... Preferred analysis method1 Fire assay Fire assay Fire assay Fire assay Fire assay Fire assay Routine

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  • New Age Metals Completes Genesis PGM/Polymetallic
    New Age Metals Completes Genesis PGM/Polymetallic

    Apr 18, 2018 The focus of field efforts will be detailed geologic mapping and lithogeochemical sampling designed to locate and define both bedded and chromite-related Cu-Ni-PGM mineralization to a degree sufficient to target drilling in year 2. All analytical work will include Pt+Pd+Au by fire assay and multi-element IPC-AES analysis with 4-acid digestion

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  • Characterization of PGM in Neoproterozoic ophiolitic
    Characterization of PGM in Neoproterozoic ophiolitic

    The PGM assemblages in the analysed chromitite sample are dominated by Os-poor laurite and Os-Ir-(Ru) alloys. These PGM grains are euhedral and occur as inclusions in chromite crystals. They are interpreted as primary PGM formed at the high-T magmatic stage before or during chromite crystallization (e.g. Zaccarini et al., 2005)

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  • Platinum, Palladium, and Rhodium Analyses of
    Platinum, Palladium, and Rhodium Analyses of

    platinum-group metals reported in this paper. In this method, fire-assay techniques are used to collect the Pt-Pd-Rh of the sample into a gold bead; this bead is . ... of materials and especially samples rich in chromite are more difficult to fire assay than routine gold ores

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  • Fire Assay - Metallurgist & Mineral Processing Engineer
    Fire Assay - Metallurgist & Mineral Processing Engineer

    Dec 17, 2016 Fire Assay is the most common technique for analyzing precious metals was developed and refined almost to perfection before the 15th century (5). Government, mining and smelting companies, private analytical laboratories, universities, and geochemical exploration companies depend on fire assay techniques to produce accurate results

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  • The systems engineering of automated fire assay
    The systems engineering of automated fire assay

    Corpus ID: 110301189; The systems engineering of automated fire assay laboratories for the analysis of the precious metals @inproceedings{Mcintosh2004TheSE, title={The systems engineering of automated fire assay laboratories for the analysis of the precious metals}, author={Keith Shearer Mcintosh}, year={2004} }

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  • Ruthenium Recovery in Chromitites by NiS-fire Assay
    Ruthenium Recovery in Chromitites by NiS-fire Assay

    fire-assay technique using nickel-sulfide as the collector National Insitute of Metallurgy, South Africa, Report # 1371, p.1-16. Zereini, F., Skerstupp, B. & Urban, H. 1994. Comparison between the use of sodium and lithium tetraborate in platinum-group element determination by nickel sulphide fire-assay. Geostandards Newsletter, v. 18 p. 105-109

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  • Platinum Analysis (Ore Grades & S. African PGM Mines
    Platinum Analysis (Ore Grades & S. African PGM Mines

    Jan 07, 2022 The graphic below represents a simplified view of precious metal prills obtained by a ‘fire assay’ procedure used in the analysis of a reef sample. Note, in reality the prill is minute in size. The weight of each prill is used to determine the percentage composition of

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  • SHEQ - MINTEK | MINTEK
    SHEQ - MINTEK | MINTEK

    ICP-OES: Ferrochromium slags and chromite ores: Procedure for the dissolution of ferrochromium slags and chromite ores and analysis by ICP-OES (ASD-MET-OES-SP005); Fire Assay/ PGE Methods: The determination of Individual PGM’s (Pt, Pd Rh,Ru, Ir, Au i.e. 6E) after Nickel sulphide collection by Fire Assay and measurement by ICP-OES

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  • Identification of the significant factors ... - ScienceDirect
    Identification of the significant factors ... - ScienceDirect

    Selective sulfation-roast-water leach process of a complex, chromite-rich Cu-Ni-PGM ore to dissolve water-soluble base metal sulfates contained therein was investigated as an alternative process to remove base metals prior to the extraction of precious metals. Ground run-of-mine ore (P 80 75 μm) was mixed with concentrated H 2 SO 4 (sulfating agent) and Na 2 SO 4 (dual

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  • Fire Assay Flux Composition for the Analysis of Pgm
    Fire Assay Flux Composition for the Analysis of Pgm

    PGM and gold fire assay typically involves fusing a finely ground ore sample with a suitable flux, which is generally a lead oxide (litharge) based flux, in the presence of a reductant and at high temperatures ( 1200 C.). A reaction occurs that liberates the PGM and separation of the precious metals from the gangue is facilitated

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  • Improved Platinum‐Group Element Extraction by NiS Fire
    Improved Platinum‐Group Element Extraction by NiS Fire

    Chromites are notably difficult to dissolve in most fluxes and if the chromite contains some PGM the possibility exists that not all the PGE will be recovered during fusion. In this work, shortcomings in published methods of analysis based on the nickel sulfide fire assay procedure were investigated and a new procedure developed based on the

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  • Improved Platinum‐Group Element Extraction by NiS
    Improved Platinum‐Group Element Extraction by NiS

    Analytical techniques: the nickelsulfur fire assay technique, followed by SnCl 2 AE2H 2 O-Te co-precipitation (NiS-FA) Fire assay is a neoclassical technique

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  • Mineral Commodity Report 5 - Platinum Group
    Mineral Commodity Report 5 - Platinum Group

    The six platinum group metals (PGM) are platinum Pt, palladium Pd, rhodium Rh, iridium Ir, ruthenium Ru and ... inclusions in nickel-copper sulphide minerals and chromite, and as flattened, rounded detrital grains in placer deposits ... Preferred analysis method1 Fire assay Fire assay Fire assay Fire assay Fire assay Fire assay Routine

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  • Nickel Sulfide Fire Assay
    Nickel Sulfide Fire Assay

    Nickel Sulfide Fire Assay Collection Method Code PGM-MS25NS A 30g sample is fused with a mixture of soda ash, borax, silica, sulfur and nickel carbonate or nickel oxide at 1000 C to produce a nickel sulfide button. The button is weighed then milled to a fine powder before dissolution in hydrochloric acid

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