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pgm chromite fire assay

determination of pgms namely platinum, palladium and

determination of pgms namely platinum, palladium and

Platinum group metals are usually produced as by-products of copper-nickel ore refining. The classical lead fire assay is still an efficient method to extract and concentrate gold and platinum group metals like platinum, palladium and rhodium, together called the 4E elements as it is relatively inexpensive, accurate and have low detection limits

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fire assayflux composition for the analysis ofpgmand

fire assayflux composition for the analysis ofpgmand

It is particularly an object of the invention to provide a universal flux composition for use in automated fire assay analysis of PGM and gold, and in both silicate and chromite sample types, that will alleviate the prior art problems associated with automated fire assay analysis, but at the same time will be suitable for use in traditional

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precious metals/fireassaying | hazen research

precious metals/fireassaying | 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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improved platinumgroup element extraction by nisfire

improved platinumgroup element extraction by nisfire

Jul 01, 2004 Many chromiterich rocks contain relatively high concentrations of the platinumgroup elements (PGE). In many cases, the phases carrying PGE occur as either platinumgroup minerals (PGM) or as base metal sulfides in solid solution in sulfides. In some cases, such as the UG2 unit of the Bushveld Complex, the PGM are occluded inside chromite grains. Chromites are notably difficult to

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us20090071291a1 - fire assay flux composition for the

us20090071291a1 - fire assay flux composition for the

This invention relates to a novel fire assay flux composition including, inter alia, a dispersant in the form of a source of phosphate; a primary reductant in the form of iron powder comprising

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fire assay- mintek | mintek

fire assay- mintek | mintek

The PGMs which remain on the filter paper are dissolved by gently heating the residue in acid on a hot plate. The solution is then transferred into a 25ml volumetric flask with the correct ratio of acid and internal standard, made up to volume and assayed on the ICP-OES or ICP-MS, depending on the grade and desired detection levels

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platinum group metals (pgm); occurrence, use and recent

platinum group metals (pgm); occurrence, use and recent

Sep 01, 2000 Details of the occurrence of the platinum group metals (PGM) in the Earth's crust and the composition of the principal minerals are presented along with data on supply and demand of PGM in different fields. Trace level determination of the PGM requires preconcentration. Methods such as fire assay, chlorination, ion exchange, etc., are dealt with

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fire assayprocedure - mineral processing & metallurgy

fire assayprocedure - mineral processing & metallurgy

Nov 23, 2016 Fire assay procedures use a combination of intense heat (1900 F) that is produced by a furnace, dry reagents called fluxes, and bone ash containers called crucibles and cupels. One uses this combination to fuse the fluxing agents and to isolate the precious metals. The ability to fire assay a substance relies on a number of facts

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platinum group of metals (pgm) occurrence and future

platinum group of metals (pgm) occurrence and future

The major world Platinum Group of Metals (PGM) deposits are generally occurred in association with ultramafic/mafic complexes. Likewise, the serpentinizedperidotite and talc actinolite schist from Madaura-Ikauna-Pindar tract, in Lalitpur district of Bundelkhand craton have been found enriched with PGM, Au and Ag. Ultramafic rocks comprising dunite, peridotites occur as intrusive in the form of

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wo2007029128a1 - fire assay flux compositionfor the

wo2007029128a1 - fire assay flux compositionfor the

This invention relates to a novel fire assay flux composition including, inter alia, a dispersant in the form of a source of phosphate; a primary reductant in the form of iron powder comprising particles having a particle size of 60 mesh and finer, at least one basic flux and at least one acidic flux. The fire assay flux composition is useful for the fire assay analysis of Platinum Group

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precious metal laboratory automation- flsmidth

precious metal laboratory automation- flsmidth

The next generation of fast inline fire assay has been developed. After 12 years of extensive research and development, we introduce FIFA 2, an automated fire assay system that improves on the previously successful FIFA 1. FIFA 2 can now assay precious metals at

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(pdf) investigation of platinum-group minerals (pgm) from

(pdf) investigation of platinum-group minerals (pgm) from

The two composite weathered. The chromite composition in both areas is samples were analyzed at SGS Lakeeld Research in Cr-rich (Cr# 7885). Ontario, Canada. Approximately 200 g were submitted; Pt and Pd were analyzed by Fire Assay and Rh, Ru, Ir by FA nickel fusion

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identification of the significant factors determining

identification of the significant factors determining

Aug 15, 2017 The Panton Sill is a chromite rich ore body bearing economic grades of Platinum Group Metals (PGMs) and high nuisance levels of Ni and Cu. It is a remote deposit situated in the Kimberly region of Western Australia. A process was developed that used roasting and hydrometallurgical techniques to extract the metal values (Bax et al., 2009)

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sulfides associated with podiform bodiesofchromiteat

sulfides associated with podiform bodiesofchromiteat

Small bodies of pyrrhotite, chalcopyrite, minor pentlandite, and magnetite occur at the peripheries of podiform bodies of chromite in ultramafic ophiolitic rocks at Tsangli, Eretria, central Greece. Banding of magnetite and sulfide within the bodies is reminiscent of magmatic banding. A magmatic origin has been proposed for similar sulfide masses in the Troodos ophiolite (Panayiotou, 1980

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an investigation of froth effects in scavenging flotation

an investigation of froth effects in scavenging flotation

Flotation concentrates were obtained from the experiments and sent for PGM and chromite analysis to an external laboratory where the fire assay analysis was done to determine the PGM content and an inductively coupled plasma- mass spectroscopy analysis was used to determine the % chromite. Base case experiments showed that the overall recovery

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platinumgroup element distribution and mineralogyof the

platinumgroup element distribution and mineralogyof the

The PGEs are then measured in an ICP-MS after a simple on-line matrix removal determined with an ICP-MS system. The acid digestion procedure does not require an optimization for each chromite composition as it is required for the flux for NiS fire assay digestions. Our results, normalized to the mantle (ca. 0.085 CI chondrite) show a peculiar

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process for recoveringplatinum group metalsfrom

process for recoveringplatinum group metalsfrom

A method for recovering at least one platinum group metal (PGM) species from a feed product selected from the group consisting of chromite ore, chromite ore concentrate and PGM concentrate comprising the steps of: mixing the feed with at least one salt so as to produce a mixture, whereby the concentration of salt in the mixture is sufficient to convert at least one PGM species into a

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