This article critically discusses the factors affecting the flotation of platinum group element bearing minerals, including flotation routes, essential gaps, problems associated with their processing, …
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The UG-2 ore is a platinum-bearing chromitite ore that contributes a growing proportion of the platinum group metal (PGM) production from the Bushveld Igneous ... By returning to the fundamentals of flotation and applying the findings of detailed process reviews, it has been possible to increase the concentrate PGM grade, reduce the concentrate ...
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This test procedure is applicable to any ore to determine its flotation characteristics under chosen conditions. Eurus Mineral Consultants Laboratory Float Procedure for MF1/2 Rate Tests.. Update2 Jan 2012. ... (Written for Platinum ore tests – equally applicable to other ores which will utilise different reagents)
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The impact of grinding environment on flotation has been investigated for different ores. In the flotation of platinum-group minerals (PGMs) from the Overysel ore (Bushveld complex in South Africa), dry grinding produced more fine particles, led to a higher degree of liberation for the PGMs but lower recoveries than wet grinding [11].For a Merensky Reef ore, dry grinding …
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Flotation is routinely used for the beneficiation of platinum ores for which the bulk of world production is from South Africa. Most South African platinum concentrators use mechanically agitated flotation cells which operate with power intensities higher than the typical industrial range of 1.0–2.0 kW/m 3.This is due to the general philosophy in the platinum …
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This thesis evaluates the effectiveness of high pressure grinding rolls (HPGR) compared to conventional ball mills in processing platinum-bearing ores from the Bushveld Complex. Key parameters analyzed include energy consumption, PGM recovery, and liberation efficiency across different ore types—Merensky, UG2, and Platreef.
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Platinum – Palladium Flotation Summary. A flotation method using mercaptobenzothiazole collector in an acid circuit was devised for preparing a platinum-palladium concentrate from Stillwater complex gabbro (Montana).
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This study investigates the flotation kinetics of individual platinum-group elements (PGEs) and gold, namely Pt, Pd, and 2E+Au (i.e., Pt+Pd+Au), in the context of Platreef ore flotation.
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This study investigates the effect of energy/power input on the flotation of a platinum ore in a pilot-scale oscillating grid flotation cell. Oscillating grids generate near ideal …
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In the present study the effect of adding sodium di-ethyldithiophosphate (DTP) to sodium isobutyl xanthate (SIBX) as a co-collector in the flotation of a platinum group mineral (PGM) ore was studied with a view to investigating whether there was any evidence of a synergistic beneficial effect resulting from the use of the mixture.
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The former can be classified into three types: gravity concentrate, flotation concentrate of primary platinum ore, flotation concentrate of copper sulfide and nickel ore in platinum metals. The latter mainly consists of four types: (1) Metals and alloy scraps, including a variety of scrap metals and alloy catalysts, precision alloy materials ...
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The ore was prepared for flotation by milling to 85% passing 75 μm with approximately 45% passing 25 μm. Batch flotation tests were carried out in a 3 l modified Leeds flotation cell using synthetic plant water, the composition of which has been described elsewhere (Shackleton et al., 2003). Although various xanthates and dithiophosphates ...
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The purpose of this paper is to provide a comparative high-level overview of aspects of the geological occurrence, mineralogy, and processing by flotation of the platinum group minerals (PGMs) found in each country.
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This property makes the flotation process the primary method used in platinum processing. Flotation process: 1 The ground pulp is first pretreated, the pH value is adjusted to 5, ... In arsenic-platinum ore tailings, …
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International Journal of Mineral Processing, 2009. During the recovery of the valuable platinum group minerals and base metal sulphides in the Merensky Reef ore by flotation, a certain amount of naturally floatable gangue (NFG) is recovered, which dilutes the concentrate.
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Russia and South Africa are the world's leading producers of platinum group elements (PGEs). This places them in a unique position regarding the supply of these two key industrial commodities. The purpose of this paper …
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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 …
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Platinum ore used in this work was obtained from the feed to the primary mill (run of mine) at Anglo Platinum's Amandelbult mine. The ore has a density of 3.47 g/cm 3. The moisture content of the platinum ore was determined by drying a 500 g sample of the platinum ore at 50 °C in an oven, overnight and then the weight after drying was ...
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Because of the presence of acid-consuming minerals in the ore, the flotation scheme devised for the anorthositic platinum-palladium ore was not satisfactory for the serpentinized ore. To obtain the desired pulp pH of 3.7 for …
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The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves …
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Flotation tailings from South Africa's platinum group minerals (PGM) represent complex polymetallic orebodies comprising a low-grade platinum group elements (PGE) …
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The present article critically discusses all the factors that affect the flotation of platinum group element bearing minerals, flotation routes, essential gaps, the problems …
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The 2.05-Ga Bushveld Complex in South Africa, host to many lucrative ore deposits (e.g. platinum group elements (PGE)), is surprisingly pristine and unaltered, given its geological age.
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Flotation is routinely used for the beneficiation of platinum ores for which the bulk of world production is from South Africa.Most South African platinum concentrators use mechanically agitated flotation cells which operate with power intensities higher than the typical industrial range of 1.0–2.0 kW/m 3.This is due to the general philosophy in the platinum industry that …
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A laboratory scale application of the attainable region technique on a platinum ore. G Danha, D Hildebrandt, D Glasser, C Bhondayi. Powder ... Measurement of a proxy for froth phase bubble sizes as a function of froth depth in flotation machines Part 1. Theoretical development and testing of a new technique. C Bhondayi, MH Moys. International ...
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In South Africa, the largest platinum-group metal deposit is the Bushveld Igneous Complex (BIC), containing 3-9 g/t platinum-group metals in ore, associated with base metals (Ni, Cu, etc.) with ...
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Batch flotation tests were conducted on a typical ore from the Merensky reef to investigate the role of dithiophosphate (DTP) and copper sulphate (CuSO4) addition on the flotation response of the ...
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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 …
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For iron ore flotation, different applications, such as anionic-anionic collectors, ... Bubble size measurements were conducted in an APBS MK4 Anglo Platinum Bubble Sizer apparatus connected to the flotation machine and under similar conditions of formation. For each test condition, 25–35 photographs were analyzed using the image ...
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Larger Scale Rougher Flotation Tests. In larger scale tests using the best conditions previously determined for the MBT-sulfuric acid flotation scheme, ore charges to the rougher flotation circuit were increased to 5,000 grams. The …
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