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froth flotation of platinum - search results

Platinum Palladium Flotation

24/06/2017 This report presents the result of a bench-scale study employing froth flotation to recover a sulfide concentrate containing platinum-palladium values from a mineralized gabbro. Best results were obtained with a flotation

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Estimation of platinum flotation grades from froth image

01/04/2011 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 shows strong relationships between various froth features and

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AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING

AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING FLOTATION OF PLATINUM FROM UG-2 ORE Deepika .I. Bennie This MSc. in Chemical Engineering Dissertation is submitted in fulfilment of the requirements for the MSc. (Engineering) in Chemical Engineering Degree, Faculty of Engineering at the University of KwaZulu-Natal. Supervisor: Prof. B.K. Loveday Co-supervisor: Dr L. Maharaj Date of

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The estimation of platinum flotation grade from froth

THE ESTIMATION OF PLATINUM FLOTATION GRADE FROM FROTH IMAGE FEATURES 145 The inertia is a measure of the number of local variations in the image. Therefore an image with a large number of local variations will have a larger value of inertia. Local homogeneity (fi, 4) [3] Homogeneity is the measure of the tendency of similar grey levels to be neighbours. Correlation (f i,5) [4] Correlation

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Froth Flotation of a Particular ore

Froth flotation of a Merensky Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate. Presented at Minerals Engineering Conference Precious Metals ‘15, Falmouth. Kloppers, L., Maree, W., Hangone, G. and Oyekola, O. 2016. Froth flotation of a Merensky Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate, Minerals

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Flotation cell technology and circuit J design—an Anglo

The evolution of Froth Flotation in Anglo Platinum can be simplistically summarized into three different ‘concentrator eras’ as follows: Flotation cell technology and circuit design—an Anglo Platinum perspective by C.M. Rule* and A.K. Anyimadu* Synopsis Froth flotation is the primary mineral processing separation step employed in the beneficiation of PGM ore bodies. Anglo Platinum

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Recovery of Platinum, Palladium, and Gold From Stillwater

beneficiated by froth flotation (l-l) and matte smelting-leaching (4). Because of long processing times en­ countered with conventional treatment of PGM sulfide concentrates and the ultimate probable dependence on a foreign smelter and refinery to produce the platinum

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Froth flotation

Froth flotation is a process for selectively separating of hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century. It has been described as "the single most important operation used for the recovery and upgrading of sulfide o

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1 Froth Flotation Fundamental Principles

1 Froth Flotation Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air bubbles are then carried to the surface and removed, while the particles that remain completely wetted stay

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Estimation of platinum flotation grades from froth image

01/04/2011 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 shows strong relationships between various froth features and

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Froth flotation of a Merensky platinum bearing ore with

The performance of the froth flotation process is largely dependent on the chemical additives used and these chemicals have been extensively studied. Mixtures of collectors are widely used in the flotation of sulphide and platinum group mineral (PGM) ores. A range of performance benefits for the use of mixtures over pure collectors have been observed on many systems. These include improved

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Froth Flotation of a Particular ore

Froth flotation of a Merensky Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate. Presented at Minerals Engineering Conference Precious Metals ‘15, Falmouth. Kloppers, L., Maree, W., Hangone, G. and Oyekola, O. 2016. Froth flotation of a Merensky Reef platinum bearing ore using mixtures of SIBX with a dithiophosphate and a dithiocarbamate, Minerals

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The estimation of platinum flotation T grade from froth

The estimation of platinum flotation grade from froth image features The experiments were conducted in completely random order to avoid biased results. The six variables considered were air flow rate (x1), pulp level (x2), collector (x3), activator (x4), frother (x5) and depressant (xx6). A series of scoping tests were done to find the two levels for the design in order to keep to a mass pull

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Flotation cell technology and circuit J design—an Anglo

The evolution of Froth Flotation in Anglo Platinum can be simplistically summarized into three different ‘concentrator eras’ as follows: Flotation cell technology and circuit design—an Anglo Platinum perspective by C.M. Rule* and A.K. Anyimadu* Synopsis Froth flotation is the primary mineral processing separation step employed in the beneficiation of PGM ore bodies. Anglo Platinum

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Pilot Mill Flotation of Serpentinized Platinum-Palladium

The Bureau of Mines investigated methods for beneficiating platinum­ palladium ores from the Stillwater Complex, Montana. Results of bench­ scale and pilot-scale studies employing froth flotation to recover s ulfide concentrates containing platinum-palladium values from a ser­ penti nized ore are presented. Best results in the pilot mill were

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Recovery of Platinum, Palladium, and Gold From Stillwater

beneficiated by froth flotation (l-l) and matte smelting-leaching (4). Because of long processing times en­ countered with conventional treatment of PGM sulfide concentrates and the ultimate probable dependence on a foreign smelter and refinery to produce the platinum

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A practical approach to plant-scale flotation optimization

Froth velocity and froth height above the cell lip are the two variables measured and used to select the operating air rate. Pulp level is then adjusted to increase or decrease mass pull. A technique has been developed using the Anglo Platinum Bubble Sizer on an industrial flotation cell

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TECHNICAL NOTES 9 FLOTATION mineraltech

in the concentrate froth when it passes over the froth lip of the flotation cell. Particles can become detached from the liquid film and transfer from the froth phase to the Plateau borders in the froth from where they can drain back into the pulp phase. 8.1.4 Entrained phase Particles are entrained in the Plateau borders of the froth and will tend to settle down toward the pulp-froth

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Froth Flotation Photos and Premium High Res Pictures

482 Froth Flotation Premium High Res Photos. Browse 482 froth flotation stock photos and images available, or search for mining or mineral exploration to find more great stock photos and pictures. beautiful young woman relaxing in a bathtub with her eyes closed froth flotation stock pictures, royalty-free photos & images.

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The estimation of platinum flotation T grade from froth

The estimation of platinum flotation grade from froth image features The experiments were conducted in completely random order to avoid biased results. The six variables considered were air flow rate (x1), pulp level (x2), collector (x3), activator (x4), frother (x5) and depressant (xx6). A series of scoping tests were done to find the two levels for the design in order to keep to a mass pull

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The estimation of platinum flotation grade from froth

However, comparatively few applications in automated process control of flotation systems have been reported, particularly in the platinum industry. One of the reasons is that to date froth features could not be related to key performance indicators such as froth grade and recovery. The research focus areas have been the use of froth appearance to detect predefined operational states (Moolman

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Froth Flotation Of Platinum Equipment

17/02/2021 Estimation of platinum flotation grades from froth . 01.04.2011 In one of the few studies done on the relationship between platinum metal group froth features and grades, Forbes (2007) has recently shown that by using a nonlinear model, froth velocity measurements could explain between 51% and 80% of the variance in flotation grade of a platinum froth.

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Estimation of platinum flotation grades from froth image

Estimation of platinum flotation grades from froth image data . By C. Marais and Chris Aldrich. Abstract. Features extracted online from froth images on flotation plants are potentially useful to the developmentof advanced control for flotation systems, provided that these features can be related to the key indicatorvariables of the plant, such as valuable metal loadings and recovery. Although

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A practical approach to plant-scale flotation optimization

Froth velocity and froth height above the cell lip are the two variables measured and used to select the operating air rate. Pulp level is then adjusted to increase or decrease mass pull. A technique has been developed using the Anglo Platinum Bubble Sizer on an industrial flotation cell

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Froth Flotation Of Platinum Equipment Caesar

The estimation of platinum flotation grade from froth image features by using artificial neural networks The 4th International Platinum Conference, Platinum in transition ‘Boom or Bust’, The Southern African Institute of Mining and Metallurgy, 2010. Froth flotation . Froth flotation is a process for selectively separating hydrophobic materials from hydrophilicThis is used in

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The PGM flotation predictor: Predicting PGM ore flotation

Froth flotation Flotation modelling Process optimisation Flotation kinetics abstract Performance of froth flotation recovery plants for platinum group minerals (PGMs) is usually monitored by means of routine chemical assays of samples taken at various locations in the plant. Whilst these assays can alert the plant metallurgist to variations in recovery, the reasons for changes in recovery

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A Comparison between Column and Mechanical Cell

Froth flotation has been used to concentrate minerals for over a century (Finch and Dobby, 2.5.6 The use of column cells as cleaners in platinum flotation: an industrial trend. 16 2.6 Factors effecting the optimization of the column cell 16 2.6.1 Depressant dosage 16 2.6.2 Cell Height 19. vii 2.6.3 Froth Depth 21 2.6.4 Recirculating the pulp in a column cell 22 2.6.5 Froth Washing 23 2.7

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TECHNICAL NOTES 9 FLOTATION mineraltech

in the concentrate froth when it passes over the froth lip of the flotation cell. Particles can become detached from the liquid film and transfer from the froth phase to the Plateau borders in the froth from where they can drain back into the pulp phase. 8.1.4 Entrained phase Particles are entrained in the Plateau borders of the froth and will tend to settle down toward the pulp-froth

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Effect of pH on the Recovery and Grade of Base Metal

recovery and grade of the Platinum Group Metals (PGMs) and base metal sulphides from the UG2 ore of the bushveld complex. This was achieved through running a series of test work in a Denver flotation cell at varying pH 6-11 at constant reagent dosage. The UG-2 reef is characterized by two predominant gangue phases i.e. chromite and silicate, that have significantly different physical and

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