flotation platinum us6679383

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Deglon et al. (2000) measured the superficial gas velocity in a variety of industrial flotation cells in South African platinum concentrators using a graduated, clear plastic tube that was fitted ...

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 …

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

The present article critically discusses all the factors that affect the flotation of platinum group element bearing minerals, flotation routes, essential gaps, the …

DOI: 10.1016/J.MINENG.2012.02.019 Corpus ID: 94866139; The role of dithiophosphate as a co-collector in the flotation of a platinum group mineral ore @article{Corin2012TheRO, title={The role of dithiophosphate as a co-collector in the flotation of a platinum group mineral ore}, author={Kirsten Claire Corin and Jacques Bezuidenhout and Cyril T. …

This study investigated the effect of energy/power input on the flotation of a platinum ore in a pilot-scale oscillating grid flotation cell. From this study one may conclude that energy/power input has a significant effect on the flotation rate which is strongly dependent on the particle and bubble size. For larger bubbles, increasing …

Causal model of an industrial platinum flotation circuit (2021) Chris Steyn et al. CONTROL ENGINEERING PRACTICE Probing the Effect of Water Recycling on Flotation through Anion Spiking Using a Low-Grade Cu–Ni–PGM Ore: The Effect of NO3−, SO42− and S2O32− ...

1. Background. Despite their potential benefits as online sensors, computer vision monitoring of froth flotation systems has not yet had a significant impact on the automatic control of flotation plants (Aldrich et al., 2010).This is particularly so in the platinum flotation industry, even though it has seen development of the some of the …

This study investigated the viability of using AMD as a replacement for potable water in the flotation of a platinum-group-minerals (PGM)-bearing Merensky ore. Rougher and cleaner flotation testwork was conducted …

Flotation of Platinum Group Elements Ores: A Review. P. Sahu P. Dash M. Jena N. Mandre. Materials Science. Mineral Processing and Extractive Metallurgy…. 2022. …

The impact of grinding environment on flotation has been investigated for different ores. In the flotation of platinum-group minerals (PGMs) from the Overysel …

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) bearing …

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 …

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 ...

Cawthorn [1] has estimated that South Africa has reserves and resources of platinum group elements (PGEs) of about 85,000 metric tons. In Russia, Norilsk alone has Pt and Pd 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

1. Introduction. Flotation is a widely used, cost-effective separation technique for wastewater treatment [1], mineral beneficiation [2], micro-oxygenation of wine [3], fermentation [4], ink removal [5], plastic recycling [6] etc. Flotation techniques are used for the various chemical, mineral and biological industries.In this technique, components …

This chapter discusses various aspects of PGM (platinum group metal) ores. In general, PGM ores are concentrates in the crust found in two different ways, by leaching the metal-rich lava (mantle ...

The ion flotation method has been applied for wastewater and water treatment, recovery of precious and platinum group metals, preconcentrating of rare earth elements, selective separation of ...

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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 …

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 …

The valorisation of platinum group metals from flotation tailings: A review of challenges and opportunities | Semantic Scholar. DOI: 10.1016/j.mineng.2023.108216. …

The BIC is the largest known repository of PGE global resources, primarily in the Upper Group 2 (UG2), Merensky Reef, Platreef, and the BIC satellite intrusion, Nkomati Nickel Deposit (Blengini et al., 2020; USGS 2022).South Africa remains the world's top producer of platinum and the second-largest producer of palladium (McFadzean et al., …

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 ...

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. …

Abstract - In this paper, the effect of weathering on the mineralogy and flotation performance of a weathered Platinum group metal (PGM) ore was investigated. A comprehensive characterisation of the weathered ore was carried out, where physical, chemical, and mineralogical and liberation properties of the sample were determined. …

United States Patent 6679383. Abstract: Provided is a method involving flotation of a feed of platinum group metal ore material to prepare a platinum group …

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 ...

The flotation circuit pulp stream always showed higher recoveries of PGMs [70 -78%] compared to CRD (54 – 62%). Keywords: Platinum group metals, flotation, water streams, residual flocculant, Bushveld Igneous Complex . 1. Introduction . Fresh water is very scarce and plays a vital role in the mining industry.

Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these minerals with ...

The anionic chlorocomplexes of platinum(IV) and iridium(III) are separated by ion flotation from acidic, aqueous solutions with cationic surfactants of the type C 16 H 33 NR' 3 Br, where R' is methyl, ethyl, n-propyl, or n-butyl. The PtCl 6 2-, which forms readily floatable salts with each of the surfactants, is selectively floated from the IrCl 6 3-and …

Semantic Scholar extracted view of "The use of electrochemical measurements in the flotation of a platinum group minerals (PGM) bearing ore" by A. Buswell et al.

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 …

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.

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 …

The electrolytic flotation has mainly been used for small plants with capacity between 20 and 30 m 3 h −1. In dissolved air flotation, the bubbles are produced by controlling the pressure of water saturated with air. Three main processes of dissolved air flotation include vacuum flotation, microflotation, and pressurized flotation.

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 is to provide a comparative high-level overview of aspects of the geological occurrence, mineralogy, and processing by …

The main application of the models is to assist both flotation cell operation and design by providing a scale-up procedure to predict froth performance. The models can also be integrated into the existing process control system, such * Corresponding author. Tel.: +27-14-598-2233; fax: +27-14-5982432.

The platinum-palladium mineralization was associated with the sulfides which made up about 1 pct of the rock. Microscopic examination of screened fractions of crushed ore showed that most of the sulfides could be liberated at 200 mesh. The Bond Index value for grinding the ore to minus 200 mesh was 16 kW·h/ton.