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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  The present article critically discusses all the factors that affect the flotation of platinum group element bearing minerals, flotation routes, essential gaps, the problems associated with their processing, and suitable reagent suites used in different ore deposits and plant practices.

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Estimation of platinum flotation grades from froth image data

2011.4.1  In this paper, estimation of flotation grades and recoveries from froth image data is therefore considered based on laboratory and industrial plant data. It is shown that grades and recoveries can be reliably estimated from a number of different features by use of linear and nonlinear models.

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Contrasts between platinum group element contents and

13 Citations. Explore all metrics. Summary. This paper presents new data on sulfide assemblages, platinum group elements (PGE's) and halogen contents of biotites in anorthositic series rocks from the Duluth Complex. The data are contrasted with similar data from troctolitic series rocks.

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  The present article critically discusses all the factors that affect the flotation of platinum group element bearing minerals, flotation routes, essential gaps, the problems associated with...

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Platinum - Palladium Flotation - 911 Metallurgist

2017.6.24  A flotation method using mercaptobenzothiazole collector in an acid circuit was devised for preparing a platinum-palladium concentrate from Stillwater complex gabbro (Montana). Bench-scale experiments

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Ore Deposit Models #12. The Platinum Group Element

1987.9.9  The platinum group element deposits are subdivided within a genetic framework; the three principal deposit types are formed by (1) Orthomagmatic, (2) Alluvial or (3) Hydrothermal processes. The Orthomagmatic class can be further subdivided into three sub-classes: deposits that formed as a result of (a) magma mixing, (b) contamination of

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Treatment of Platinum Flotation Products Johnson Matthey

A flowsheet has been developed for the production of rich concentrates of precious and non-ferrous metals by a complex treatment of the flotation products from South African platinum-containing chrome ores. The procedure involves: autoclave leaching, roasting, hydrochlorination and precious metal recovery by sorption.

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  ABSTRACT. The unique physical and chemical properties of platinum group elements are making them indispensable in many modern industrial applications. Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these ...

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  Flotation of Platinum Group Elements Ores: A Review. P. Sahu, P. Dash, +1 author. N. Mandre. Published in Mineral Processing and 20 January 2022. Materials Science. ABSTRACT The unique physical and chemical properties of platinum group elements are making them indispensable in many modern industrial applications.

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Platinum - Palladium Flotation - 911 Metallurgist

2017.6.24  A flotation method using mercaptobenzothiazole collector in an acid circuit was devised for preparing a platinum-palladium concentrate from Stillwater complex gabbro (Montana). Bench-scale experiments

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NorthMet Copper-Nickel-Platinum Mine - NS Energy

NorthMet is the first copper-nickel-platinum group metals (PGMs) mine planned to be developed in Minnesota, US. Poly Met Mining, a wholly-owned subsidiary of Canada based PolyMet Mining Corporation, is the

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The use of electrochemical measurements in the flotation of a platinum ...

2002.6.1  Electrochemical potential is considered an important parameter for controlling the recovery and selectivity of sulphide minerals during flotation.The aim of this work was to use mineral potential measurements to gain an understanding of respective mineral flotation performance in the processing of a platinum group mineral (PGM)

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Platinum-group element (PGE) deposits and occurrences:

2005.2.1  Deposits containing Ni, Cu and platinum-group elements (PGE) are usually associated with mafic and ultramafic rocks. The deposits may be subdivided into two groups (Naldrett, 1981). (i) Ores with Ni and Cu as the principal products and where the noble metals (PGE and Au) are byproducts. They contain more than 10% sulfide minerals (e.g.,

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The effect of agitation on the flotation of platinum ores

2005.7.1  Deglon [185] investigated the influence of agitation on the flotation of platinum ores (d 40 = 75 µm) with reference to a result from a test on 60 L pilot-scale mechanical flotation cells on ...

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  Platinum-group elements (PGE), gold, and silver have occupied a special position and considerable economic importance in the world’s mineral history (Potts 1992). ... 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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On the impact of grinding conditions in the flotation of semi

2023.7.1  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].

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Oxygen pressure leaching–flotation joint process for

2019.5.1  The grade of PGMs enriched in the flotation concentrate is 420 g/t through the flotation technology. Key words: platinum group metals; oxygen pressure leaching; flotation; recovery 1 Introduction Platinum group metals (PGMs) are widely used in manufacturing catalysts, electronic devices, space materials, biomedical devices, and

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Flotation of platinum-group metal minerals from the Duluth

1991.1.1  Flotation of platinum-group metal minerals from the Duluth complex: Submitted to the Minnesota Minerals Coordinating Committee [Iwasaki, Iwao] on Amazon. *FREE* shipping on qualifying offers. Flotation of platinum-group metal minerals from the Duluth complex: Submitted to the Minnesota Minerals Coordinating

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Platinum group and arsenide minerals in copper-nickel

Precious metals are commonly believed to be recovered along with sulfide minerals in flotation, but a few neutron activation analyses showed that the recoveries of gold and silver were unexpectedly low. Reasons for low recoveries of platinum group metals remained unresolved due to interferences in the analyses. Electron microprobe, scanning electron

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...

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Nano-Silica based mineral flotation frother: Synthesis and flotation

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. About 8.4 L of slurry was

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Estimation of platinum flotation grades from froth image data

2011.4.1  Research highlights Online froth image processing is a potentially important approach to estimating the performance of flotation cells and can serve as basis for development of advanced process control systems. The relationship between froth features and grades and recoveries is not well-established in platinum flotation yet. This study

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(PDF) Froth flotation of a Merensky Reef platinum bearing

2015.12.1  Platinum group elements (PGE) are recovered by flotation from the Merensky reef in the Bushveld Complex, South Africa. The reef contains approximately 1% sulphide minerals in the form of ...

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The use of electrochemical measurements in the flotation of a platinum ...

2002.6.1  However unexplainable flotation results in low grade sulphide ores are often attributed to galvanic interactions with little regard for how feasible such interactions are from a physical point of view. In platinum group mineral (PGM) bearing sulphide ores from the Bushveld complex, South Africa, the combined sulphide grade is typically less ...

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  Flotation of Platinum Group Elements Ores: A Mineral Processing and Extractive Metallurgy Review ( IF 5) Pub Date : 2022-01-20, DOI: 10.1080/08827508.2022.2027768

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The effect of agitation on the flotation of platinum ores

2005.7.1  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

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The effect of energy input on the flotation of a platinum ore

2017.8.15  This section presents and discusses results for the effect of energy/power input on the flotation of a platinum ore in the pilot-scale oscillating grid flotation cell. Firstly, a brief summary of the results of Safari et al. (2016) for the sulphide flotation tests in the laboratory oscillating grid flotation cell are presented.

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The effect of using different comminution procedures on the flotation ...

2011.7.1  Another factor which could play a role in the different flotation responses of platinum observed during the study is pulp potential. More positive pulp potentials are indicative of a more oxidizing environment. Fig. 4 illustrates the pulp potential measured after reagent addition. Dry milling produces a more positive pulp potential than wet ...

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Review of hydrodynamics and gas dispersion in flotation

2000.3.1  Hydrodynamic and gas dispersion parameters, obtained from industrial flotation cells on South African Platinum concentrators, are reviewed in this paper. Hydrodynamic results show that power intensities are slightly higher than those typically observed in industrial flotation cells while impeller tip speeds and Froude numbers are

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The use of electrochemical measurements in the flotation of a platinum ...

2002.6.1  The use of electrochemical measurements in the flotation of a platinum group minerals (PGM) bearing ore @article{Buswell2002TheUO, title={The use of electrochemical measurements in the flotation of a platinum group minerals (PGM) bearing ore}, author={A. Mark Buswell and Dee Bradshaw and Philip J. Harris and Zafir

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Characterization of precious metal mineral occurrences in

In a sulfide flotation beneficiation process, it is assumed that precious metals are contained within sulfide minerals as small (micron-sized) platinum group minerals (PGM), as Au-Ag minerals, or in solid solution. The 75% recovery implies that some precious metal mineral (PMM) phases may not be hosted by sulfide minerals.

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Flotation of Platinum Group Elements Ores: A Review

2022.1.20  ABSTRACT The unique physical and chemical properties of platinum group elements are making them indispensable in many modern industrial applications. Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these

Read More
Review of hydrodynamics and gas dispersion in flotation

Pergamon 0892-6875(00)00003-0 Minerals Engineering, Vol. 13, No. 3, pp. 235-244, 2000 2000 Published by Elsevier Science Ltd All fights reserved 0892-6875/00/$ - see front matter REVIEW OF HYDRODYNAMICS AND GAS DISPERSION IN FLOTATION CELLS ON SOUTH AFRICAN PLATINUM CONCENTRATORS D.A. DEGLON D. EGYA

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Novel Concentration Process for Platinum Group Metals in

2023.10.30  Platinum group metals (PGMs) are primarily used in automotive exhaust catalysts (autocatalysits). Spent autocatalysts are the most important secondary resource for PGMs. However, transporting autocatalyst scraps and recovering PGMs from the scraps are costly and time-consuming, owing to the low PGM content in spent autocatalysts. Thus,

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Causal model of an industrial platinum flotation circuit

2021.4.1  The causal model of flotation was trained for the period 7 June 2019 to 2 July 2020, which is the same period as the J g sampling campaign. The resulting model was tested on a nine day period from 2 to 11 July 2020. Data sources used to derive the model are: (1) J g and d 32 from a manual APBS samples, (2) Z and u from the online camera ...

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Flotation of Platinum Group Metal Ores Semantic Scholar

An investigation into the effects of UG2 Ore variability on froth flotation. N. V. Ramlall. Environmental Science, Engineering. 2014. South Africa is the world’s largest producer of platinum group elements (PGEs). Mining takes place in the Bushveld Complex, and recent statistics, (Mudd, 2010), showed that the UG2 reef is the main. Expand.

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The Geological Occurrence, Mineralogy, and Processing

2021.1.22  reserves of about 2500 metric tons [2]. Platinum group metals or elements commonly refer to ruthenium, rhodium, palladium, osmium, iridium, and platinum and will be referred to as PGEs in the present paper. These metals are present in a very wide range of platinum group minerals, which will be referred to as PGMs. Table1shows the 2018

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Treatment of Platinum Flotation Products Johnson Matthey

A flowsheet has been developed for the production of rich concentrates of precious and non-ferrous metals by a complex treatment of the flotation products from South African platinum-containing chrome ores. The procedure involves: autoclave leaching, roasting, hydrochlorination and precious metal recovery by sorption. Autoclave oxidative leaching

Read More
Platinum-group element (PGE) deposits and occurrences:

2005.2.1  Deposits containing Ni, Cu and platinum-group elements (PGE) are usually associated with mafic and ultramafic rocks. The deposits may be subdivided into two groups (Naldrett, 1981). (i) Ores with Ni and Cu as the principal products and where the noble metals (PGE and Au) are byproducts. They contain more than 10% sulfide minerals (e.g.,

Read More
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