Evaluation of alternative reagent schemes for the …
Evaluation of alternative reagent schemes for the flotation of platinum group minerals from various ores | Semantic Scholar. DOI: 10.1016/S0892-6875 …
Platinum & Palladium Ore Flotation Pilot Plant
Because of the presence of acid-consuming minerals in the ore, the flotation scheme devised for the anorthositic platinum-palladium ore was not satisfactory for the serpentinized ore. To obtain the desired …
An investigation of froth effects in scavenging flotation of platinum …
South Africa is the largest supplier of platinum group metals (PGMs), which are mined from three reefs in the Bushveld Igneous Complex. About 60% of the world's mined PGMs come from a single reef, the UG-2 reef (Mudd, 2010). Flotation is the primary method used to concentrate the PGMs. There are currently two major problems which are experienced …
Improved flotation performance at Karee Platinum …
Different control schemes were also implemented and tested on the surge tank in an effort to remove disturbances before they entered the flotation plant. ... carried out on another South African platinum flotation plant2 and the other on an Australian Gold plant3,4. The improvements in recovery were 0,75 per cent and 1,27 per
The effect of energy input on the flotation of a platinum …
The flotation experiments were conducted in continuous mode using the conditions given in Table 2. Energy inputs were chosen to cover the range of power intensities typically found in industrial mechanical flotation cells. A typical flotation column superficial gas velocity of 1 cm/s was used. Two bubble sizes were used depending on …
Recovery of PGMs from an oxide ore by flotation and …
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. ... flotation recoveries achieved using the sulphide co-collector schemes were 55.1% 3E (Pt, Pd and Au). Application of the hydroxamate oxide collector improved ...
Investigation into the mineralogy and flotation
1. Introduction. The 2.05 Ga Bushveld Complex in South Africa is host to some of the world's major platinum group mineral (PGM) ore deposits such as the Merensky reef, UG2 reef and Platreef.Although the majority of the mines exploiting these deposits have underground workings, several open cast operations do exist, most …
Potential Processing Routes for Recovery of Platinum …
Different Flotation Reagent Schemes. Use of Modified Xanthate Collectors ... The present article critically discusses all the factors that affect the flotation of platinum group element bearing ...
Investigating the Mineralogy of an Oxidised South …
flotation concentrators are already in place and therefore it is viable to explore alternative flotation reagent schemes in an effort to improve Platinum Group element (PGE) recovery when oxidised ore is processed. Little work has been done to quantitatively relate the surface oxidation to flotation performance which makes it …
The Geological Occurrence, Mineralogy, and Processing by Flotation …
Four stages of flash flotation follow using Outotec Skim-Air flash flotation technology and re- sult in overall recoveries of platinum and palladium of ≈92% and ≈87%, respectively. It is important to note that the grades of Pd and Pt in the gravity concentrate are as high as 184 and 114 g/t.
Application of Quantum Chemistry in the Study of Flotation …
Flotation reagents are significant for modifying the interfacial characteristics of mineral grains to achieve the effective separation of minerals. Since the 1960s, when quantum chemistry was first introduced into the study of flotation reagents, many achievements have been made, although some controversial topics remain. The …
Potential Processing Routes for Recovery of Platinum …
Different Flotation Reagent Schemes Use of Modified Xanthate Collectors. Bulatovic conducted a research study to evaluate alternative reagent schemes for the flotation of platinum group minerals from various ores. For the chromium-rich, highly oxidized ore from Panton Sill deposit in Australia, poor recoveries were obtained using …
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.
Monitoring of a Platinum Group Metal Flotation Plant with …
Froth flotation is one of the most important techniques in mineral processing to beneficiate valuable minerals from ore. As a consequence, advanced control of industrial flotation plants can significantly affect the efficiency of mineral beneficiation. Videographic monitoring of flotation cells is a vital element of advanced process control systems, as the froth …
The effect of agitation on the flotation of platinum ores
Deglon [185] investigated the influence of agitation on the flotation of platinum ores (d 40 = 75 µm) with reference to a result from a test on 60 L pilot-scale mechanical flotation cells on ...
Industrial experiences in the evaluation of various flotation …
This paper is a summary of the author's industrial experiences on the selection and optimization of flotation reagent schemes for the recovery of gold species. The trends given are a composite of data and experiences gained on 24 different gold ores from around the globe. The primary emphasis is on the benefits of matching the …
Monitoring of a Platinum Group Metal Flotation Plant with …
Froth flotation is one of the most important techniques in mineral processing to beneficiate valuable minerals from ore. As a consequence, advanced control of industrial flotation plants can significantly affect the efficiency of mineral beneficiation. Videographic monitoring of flotation cells is a vital element of advanced process control …
Surface characteristics and flotation behaviour of platinum …
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 ...
The Geological Occurrence, Mineralogy, and Processing by Flotation …
Basing on the analysis of main technological processes of PGM ore treatment, the most efficient schemes are identified, i.e.,gravity and flotation treatment with subsequent metallurgical ...
Potential Processing Routes for Recovery of Platinum …
Keywords Oxidized PGM ores Recovery Flotation Leaching Introduction Platinum Group Metals (PGMs) possess unique properties such as high conductivity, catalytic activity, and corrosion ... reagent schemes. Other researchers have focused on extraction of PGE from oxidized PGM ores using leaching methods. This paper reviews and discusses the …
Potential Processing Routes for Recovery of …
Abstract The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has con-ventionally been conducted through froth flotation, which typically …
The effect of using different comminution procedures on the flotation …
DOI: 10.1016/J.MINENG.2011.01.001 Corpus ID: 98478283; The effect of using different comminution procedures on the flotation of Platinum-Group Minerals @article{Chapman2011TheEO, title={The effect of using different comminution procedures on the flotation of Platinum-Group Minerals}, author={Neil Chapman and Natalie Jean …
Flotation of chromite and serpentine | Semantic Scholar
Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods. The low chromium-to-iron ratio of chromite ores is an important issue in some chromite deposits. The value of the chromite ore is indeed dictated in the market by its iron, as well as its chromium….
Investigation into the mineralogy and flotation performance of …
Effect of Alteration on the Mineralogy and Flotation Performance of PPM Platinum Ore. The 2.05-Ga Bushveld Complex in South Africa, host to many lucrative ore deposits (e.g. platinum group elements (PGE)), is surprisingly pristine and unaltered, given its geological age. In some….
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...
What are the common beneficiation methods for platinum …
After flotation in the 1960s, its watwell concentrator used a suede chute for gravity separation to obtain "Rustenberg platinum minerals" (30% ~ 35% platinum, 4% ~ 6% palladium, 2% ~ 3% gold and 0 ...
Investigation into the mineralogy and flotation
Separation and recovery of platinum group metals (PGM) from dilute solutions have been examined using precipitation, ion exchange, and solvent extraction. Flotation separation of palladium (Pd) was investigated in the current study. Experimental results showed that Cl − forms complexes with Pd 2+ ion and rendered Pd more soluble. …
Investigation into the mineralogy and flotation
While the beneficiation of PGE from pristine sulphide ores achieves platinum recoveries above 80 %, processing of oxidized ores by conventional flotation techniques typically results in very poor ...
Evaluation of alternative reagent schemes for the …
Evaluation of alternative reagent schemes for the flotation of platinum group minerals from various ores - ScienceDirect. Minerals Engineering. Volume 16, Issue 10, October 2003, Pages 931-939. Evaluation of alternative reagent schemes for the …
On the Management of Gangue Minerals in the Flotation of Platinum …
Optimising flotation performance has to accommodate these two completely different flotation behaviours in an effort to reject chromite whilst at the same time maximise Platinum Group Minerals ...
