The effect of using different comminution procedures on the flotation
The flotation performance of the samples prepared either by dry grinding in Loesche vertical roller mill or by wet grinding in a rod mill are compared and the effects of dry and wet grinding are ...
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(PDF) Effect of Alteration on the Mineralogy and Flotation Performance
The Pilanesburg Platinum Mines (PPM) operation in South Africa treats ore from an open pit and routinely suffers from low and erratic PGE flotation recoveries. This article investigates the effect ...
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A study on the recovery of fine chromite from …
Abstract and Figures. The recovery of chromite from the tailings streams of South African UG2 platinum concentrators adds significant financial returns to these operations. Whilst the coarser ...
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Flotation
Flotation. This is an overview of setting up and conducting a flotation rate test. The test is a means of determining the flotation characteristics of an ore. It is conducted in a laboratory scale cell usually with a volume of two point five litres. The intention is to generate relationships of cumulative recovery, mass pull and grade versus ...
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The Effect of Using Different Comminution Procedures on the Flotation
The Effect of Using Different Comminution Procedures on the Flotation of Platinum Group Minerals The use of High Pressure Grinding Rollers (HPGR) has been widely reported to have major benefits in the treatment of minerals such as iron ore and diamonds. To date there have been few investigations into its use in the treatment of ores containing …
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Challenges Related to the Processing of Fines in the …
Flotation. Challenges Related to the Processing of Fines in the Recovery of Platinum Group Minerals (PGMs) License. CC BY 4.0. Authors: Kirsten Claire Corin. …
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Flotation of platinum group metal ore materials
Get details on patent AU2002343693 - Flotation of platinum group metal ore materials by Newmont USA Limited and more at IP in Australia
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On the Management of Gangue Minerals in the Flotation of Platinum …
The Bushveld Complex of South Africa contains almost 90% of the world's reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to treat ever-decreasing grades of the relevant ore deposits. The major challenge in the flotation of these ore bodies is the control and …
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The Use of Acid Mine Drainage (AMD) in the Flotation of a Platinum …
Water scarcity is compelling mining houses to not only recycle process water but to also identify alternative sources of make-up water in concentrators. South Africa has significant volumes of acid mine drainage (AMD) generated from vast mining operations. This study investigated the viability of using AMD as a replacement for potable water in …
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Nano-Silica based mineral flotation frother: Synthesis and flotation …
The flotation performance of the nano-frother was benchmarked with a commercial conventional frother (SasFrother). At an optimum nano-frother dosage of 20 g/t a recovery of 73.8%, 77.0%, 84.0% and 78.2% platinum, palladium, nickel and copper respectively was realized.
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The valorisation of platinum group metals from …
Flotation tailings from South Africa's platinum group minerals (PGM) represent complex polymetallic orebodies comprising a low-grade platinum group …
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Extraction of Platinum Group Metals | IntechOpen
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 …
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Flotation
The FLOTATION PROCESS is one of the commonest methods of extracting the valuable minerals from certain classes of ores, and it is generally more efficient as regards the recovery of the minerals than any other process applicable to the treatment of similar types of ores. The metallic contents of the minerals are recovered from the …
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Flotation of Platinum Group Metal Ores | Semantic …
An investigation into the effects of UG2 Ore variability on froth flotation. South Africa is the world's largest producer of platinum group elements (PGEs). Mining takes place in the …
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Flotation froth image recognition with convolutional neural networks
Convolutional neural network architectures. Convolutional neural networks (CNNs) belong to a class of deep, feed-forward artificial neural networks that have been successfully applied to image analysis in many different disciplines. They are biologically inspired variants of multilayer perceptrons that emulate the animal visual cortex, the most ...
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Comparison of single and mixed reagent systems for flotation of copper …
Silver, gold and PGM (platinum group minerals) are closely associated with these copper sulphides, although only in trace amounts. The identified gold and silver particles occurred as fine inclusions (~10–32 µm) in copper minerals. ... Flotation: Froth flotation is a standard technique for concentrating copper sulphide minerals from ores ...
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DOI: 10.1595/147106704X1667 Treatment of …
ferrous metals by a complex treatment of the flotation products from South African platinum- containing chrome ores. The procedure involves: autoclave leaching, roasting, …
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Platinum
Tailings obtained with the modified procedure were higher in platinum and palladium content (0.02 oz/ ton Pt and 0.11 oz/ton Pd) than those obtained from flotation …
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The Use of Acid Mine Drainage (AMD) in the Flotation of a Platinum …
Rougher and cleaner flotation testwork was conducted at laboratory scale to compare the performances of potable water (baseline water), AMD treated with Ca(OH)2, and AMD treated with the Veolia ...
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Nano-Silica based mineral flotation frother: Synthesis and flotation …
The generated nano-silica had an average particle size distribution of 35-41 nm. The flotation performance of the nano-frother was benchmarked with a commercial conventional frother (SasFrother). At an optimum nano-frother dosage of 20 g/t a recovery of 73.8%, 77.0%, 84.0% and 78.2% platinum, palladium, nickel and copper respectively was realized.
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Flotation of platinum group metal ore materials
The present invention provides a method involving flotation of platinum group metal ore materials in which a lead-containing activator reagent, and preferably also a xanthate collector reagent, are added to the platinum group metal ore material prior to and/or during flotation and the flotation is conducted using an oxygen-deficient …
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Improving Nickel Recovery in Froth Flotation by …
The flotation and DAF treatment tests were carried out at Boliden's Kevitsa concentrator plant. Kevitsa is a low-grade Ni-Cu-PGE deposit, where nickel is carried mainly by pentlandite and copper by …
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(PDF) Froth flotation process and its application
The paper is about the froth flotation process and its application. It is a metallurgical process for the extraction of metals in a pure state from their ores: especially for sulfide ores. Froth ...
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Investigating the recoveries and grades of individual platinum …
Substantial price increases for platinum (2,4%), palladium (43,2%) and rhodium (187,2%) in 2020 resulted in an increase in PGM sales despite a drop in PGM production. A UG2 ore was subjected to laboratory scale flotation tests to evaluate elemental grades and recoveries of the individual elements in the production basket.
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Platinum-Group Metal Ores
Flotation of Platinum Group Metal Ores. Srdjan M. Bulatovic, in Handbook of Flotation Reagents: Chemistry, Theory and Practice, 2010 Publisher Summary. 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 …
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THE APPLICATION OF LARGE SCALE STIRRED MILLING …
monitoring, ball milling, rougher flotation, rougher concentrate regrinding and cleaner /recleaner flotation. The rougher concentrate is reground in an IsaMill, which is a stirred mill that operates with inert silica sand grinding media. For this project, Anglo Platinum required a stirred mill of a unit size not previously available.
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PGM recovery from chromite tailings – a new art or more …
Keywords: Flotation, Platinum Group Metals, Chromite, Bead milling . 1 Abstract Recent years has seen an upsurge in the interest for recovering Platinum Group Metal (PGM) concentrates from ...
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Effect of using different grinding media on the flotation of a …
DOI: 10.1016/J.MINENG.2018.06.019 Corpus ID: 103834600; Effect of using different grinding media on the flotation of a base metal sulphide ore @article{Corin2018EffectOU, title={Effect of using different grinding media on the flotation of a base metal sulphide ore}, author={Kirsten Claire Corin and Z. G. Song and Jennifer …
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The extractive metallurgy of South Africa's platinum ores
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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The Use of Acid Mine Drainage (AMD) in the Flotation of a Platinum …
Water scarcity is compelling mining houses to not only recycle process water but to also identify alternative sources of make-up water in concentrators. South Africa has significant volumes of acid mine drainage (AMD) generated from vast mining operations. This study investigated the viability of using AMD as a replacement for potable water in the flotation …
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