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(PDF) Froth flotation of a Merensky Reef platinum bearing

01/12/2015 Ionic N,N-dialkyl dithiocarbamates and their derivatives are widely used as collectors in froth flotation enrichment of non-ferrous sulfide ores,

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The estimation of platinum flotation grade from froth

The estimation of platinum flotation grade from froth image features by using artificial neural networks C. MARAIS and C.A. ALDRICH Department of Process Engineering, University of Stellenbosch The use of machine vision in the monitoring and control of metallurgical plants has become a very attractive option in the last decade, especially since computing power has

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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.

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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

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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

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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 scheme utilizing a mercaptobenzothiazone collector and sulfuric acid. Rougher concentrates containing approximately 11 oz Pt-Pd/ton and 90 pct

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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

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Estimation of platinum flotation grades from froth image data

The estimation of platinum flotation grade from froth image features by using artificial neural networks Marais, C. ; Aldrich, Chris ( 2011 ) The use of machine vision in the monitoring and control of metallurgical plants has become a very attractive option in the last decade, especially since computing power has increased drastically inthe last few years.

get price

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

get price

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

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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.

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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

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Minerals Engineering Froth flotation of a Merensky Reef

Froth flotation Merensky Reef Platinum group element (PGE) ore Thiol collector mixtures Precious metal a b s t r a c t The Bushveld Igneous Complex (BIC) in northern South Africa has the largest deposit of platinum group elements (PGEs) in the world. In trace amounts, these are closely associated with base metal sulphides (BMS). Froth flotation is used as a bulk

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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

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Froth Flotation Process

20/01/2021 The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on making them hydrophobic (water-repel) individually to carefully separate them from one another and the slurry they are in. For this purpose we use chemicals/reagents: Frothers (MIBC) is what allows the

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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 group metals, alternative processing of

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OVERVIEW OF PGM PROCESSING Anglo American Platinum

• Platinum (Pt), Palladium (Pd), Rhodium (Rh) and Ruthenium (Ru) are the most prevalent of the six PGMs, Froth Flotation Drying and smelting in electrical furnace Air/O 2 Base Metal Refiningblown Converters Sulphur Removal •Nickel •Copper •Cobalt Sulphate •Sodium Sulphate •Nickel sulphate Base Metal Refining (incl. Magnetic Concentration for some players) Precious

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Froth flotation of a Merensky Reef platinum bearing ore

01/03/2016 Consequently, mixtures of collectors were used in batch froth flotation tests in an attempt to improve concentrate grades and recoveries of BMS from a Merensky Reef platinum ore. The mixtures consisted of a xanthate (SIBX) with a dithiophosphate (DTP) or a dithiocarbamate (DTC). Each mixture was tested at mole ratios of 80:20 and 60:40, with the xanthate the major component. An increase in

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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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Minerals Engineering Froth flotation of a Merensky Reef

Froth flotation Merensky Reef Platinum group element (PGE) ore Thiol collector mixtures Precious metal a b s t r a c t The Bushveld Igneous Complex (BIC) in northern South Africa has the largest deposit of platinum group elements (PGEs) in the world. In trace amounts, these are closely associated with base metal sulphides (BMS). Froth flotation is used as a bulk sulphide recovery to

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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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Minerals Free Full-Text Monitoring of Flotation

30/04/2021 Relatively few studies have considered flotation froth image analysis in unsupervised process monitoring applications. In this study, it is shown that froth image analysis can be combined with traditional multivariate statistical process monitoring methods for reliable monitoring of industrial platinum metal group flotation plants. This can be accomplished with well-established methods of

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REF Case study search

Anglo American Platinum and Rio Tinto supported financially the Froth and Foam Research Group to increase the understanding of the fundamentals of flotation and the importance of froth in mineral separation. This research had two key deliverables; first, to measure flowing froth properties using image analysis; in particular bubble size and velocity, and second to develop a CFD model of

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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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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

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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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