our products

D&Q Mining is a high-tech company integrating R&D, production and sales. It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc., for aggregate, mining and waste recycling.

flotation processing of pgms

The PGM flotation predictor: Predicting PGM ore 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 are not adequately

More

Recovery of PGMs from an oxide ore by flotation and leaching

Froth flotation is the process used in the Platinum Group Metal industry to upgrade the run-of-mine ore for subsequent processes such as smelting and hydrometallurgical PGM refining. The PGM concentrator plants achieve high PGM recoveries (>85%) when treating prestine (unweathered) sulphide ores. However, the depletion of prestine sulphide PGM bearing minerals has triggered interest in

More

(PDF) PGM extraction from oxidized ores using flotation

Different flotation reagent schemes and lixiviants were evaluated and their PGMs extraction response measured. Characterization of the PGM ore used in this study indicated that it was enriched in

More

The PGM flotation predictor: Predicting PGM ore flotation

01/10/2012· Laboratory scale rougher flotation rate tests on several PGM ores were used to establish the initial “default” flotation predictor parameters which appear in the user interface when the flotation predictor software is run. This was achieved by performing mineralogical investigations on concentrates collected at 1, 3, 7, 20 and 40 min during the flotation rate tests on each ore. The

More

Extraction of Platinum Group Metals IntechOpen

02/10/2017· 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 chrome feed, alternative routes to smelting of PGM are

More

Potential Processing Routes for Recovery of Platinum

06/11/2017· The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries of over 85%. The achieved successes of PGM concentration by flotation from the pristine sulfide ores are largely due to the occurrence of PGMs in close association with base metal sulfide minerals like

More

FUNDAMENTALS OF THE FLOTATION BEHAVIOUR OF PALLADIUM

to be exploited due to its relative ease of processing given the fairly large quantities of sulphides hosting the well-associated platinum-group minerals (PGMs) (Jones, 1999). Recent developments in flotation technology have led to the exploitation of the more difficult to process chromite-bearing UG-2 reef. New expansions are focused on

More

Reagent Optimization across a UG2 Plant

large PGMs processing operations because the correct improvement opportunities to flotation recovery and grade [5,6]. Also, the cost of reagents typically runs into tens of millions of dollars per annum for a large PGMs operation, and therefore reagent optimization presents a good opportunity for cost improvement, especially in these critical financial times [7]. This study was undertaken to

More

OVERVIEW OF PGM PROCESSING Anglo American Platinum

•PGMs •Gold Incorporating PGMs into various end applications Processing: c.10% of input from non-integrated miners Major PGM miners are integrated from mining to refining and therefore maintain considerable processing assets that produce both refined PGMs and by-products

More

The PGM flotation predictor: Predicting PGM ore flotation

01/10/2012· Laboratory scale rougher flotation rate tests on several PGM ores were used to establish the initial “default” flotation predictor parameters which appear in the user interface when the flotation predictor software is run. This was achieved by performing mineralogical investigations on concentrates collected at 1, 3, 7, 20 and 40 min during the flotation rate tests on each ore. The

More

Potential Processing Routes for Recovery of Platinum

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries of over 85%. The achieved successes of PGM concentration by flotation from the pristine sulfide ores are largely due to the occurrence of PGMs in close association with base metal sulfide minerals like

More

PGM extraction from oxidized ores using flotation and leaching

Flotation and leaching were investigated as possible processing routes for improving PGM recovery from a Southern African oxidized PGM ore. Different flotation reagent schemes and lixiviants were evaluated and their PGMs extraction response measured. Characterization of the PGM ore used in this study indicated that it was enriched in oxide minerals as a result of weathering and therefore

More

THE PRIMARY PRODUCTION OF PLATINUM GROUP METALS (PGMs)

Wet chemical treatment known as froth flotation produces a concentrate which is dried and smelted in an electric furnace at temperatures over 1,500°C. A matte containing the valuable metals is transferred to converters to remove iron and sulphur. PGMs are then separated from the base metals nickel, copper and cobalt, and refined to a high level of purity using a combination of solvent

More

Development of PGMs and Chrome Extraction Circuit from UG

process route which is a mill float mill float plant operation from this, the gravity concentrate is extracted. The sulphides are concentrated by flotation. The flotation concentrates undergo smelting and convertion, to produce a PGM-containing nickel-copper matte. The matte is treated by using hydrometallurgy to separate the base metals from the precious metals [9]. Finally, the PGMs

More

FUNDAMENTALS OF THE FLOTATION BEHAVIOUR OF

to be exploited due to its relative ease of processing given the fairly large quantities of sulphides hosting the well-associated platinum-group minerals (PGMs) (Jones, 1999). Recent developments in flotation technology have led to the exploitation of the more difficult to process chromite-bearing UG-2 reef. New expansions are focused on

More

Treatment of Platinum Flotation Products Johnson

During the ion exchange process, with the rate of solution passing being: 2 volumes of solution to 1 volume of resin per hour, the following residual pgm content in the sorbate was (in mg l −1): platinum . 1; palladium 1–1.5; rhodium 1; ruthenium 3–4; iridium 1–2. The residual contents correspond to a total pgms recovery of 95 to 98%

More

pH Control in Flotation of PGM Platinum Group Metal

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else’s

More

processing platinum flotation

The complex process for refining platinum. Image from UNCTAD. A platinum flotation circuit. In a process called flotation separation, air bubbles are blown through the mixture and carry platinum particles to the surface of the bath. The platinum-rich froth is skimmed from the bath and allowed to dry into a concentrated powder.

More

Froth Flotation Process Mineral Processing & Metallurgy

Metallurgical ContentFROTH FLOTATIONFroth Flotation HandbookBubble Contact Angle Froth FlotationHow Flotation Chemicals are UsedFunctions of Flotation ReagentsClassification of Flotation ReagentsFlotation Processing Costs The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on making them

More