However unexplainable flotation results in low grade sulphide ores are often attributed to galvanic interactions with little regard for how feasible such interactions are from a physical point of view. In platinum group mineral (PGM) bearing sulphide ores from the Bushveld complex, South Africa, the combined sulphide grade is typically less ...

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.

During flotation tests, most of the platinum-group mineral grains that remained associated with gangue reported to the flotation tailings, and those associated with liberated base-metal sulphides ...

Flotation of Platinum Group metals PGMs ores originated from an ore body along The Great Dyke in Zimbabwe. The Great Dyke holds the world's 2nd largest …

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...

The chromitites of the Bushveld Complex in South Africa contain vast resources of platinum-group elements (PGE); however, except for the economic upper group (UG)-2 chromitite seam, information on the distribution of the PGE in the ores and on the mineralogical nature, assemblages, and proportions of platinum-group minerals …

The South African platinum industry has advanced into an era of predominantly mining and processing Upper Group Two (UG-2) ore to extract Platinum Group Metals (PGMs). Flotation concentrates derived from processing UG-2 ore are typically characterized by high chrome contents (>3 wt.%) which are not amenable to …

The uniqueness of Platinum-Group Elements (PGE) deposits and their formation dictates the development of the treatment process and the reagent regime for different ore types. There is however little data published on the flotation of PGE-bearing minerals due to its highly confidential nature ( Bulatovic, 2003 ).

This chapter describes the production of concentrates containing the platinum-group metals (PGMs). South Africa is the largest primary producer of PGMs followed by Russia. South African ores ...

The current study investigated the effects of thiol collectors on the flotation of base metals (BMs) and platinum group metals (PGMs) ores. The properties of a single-mineral flotation test were conducted using sodium isobutyl xanthate (SIBX), sodium ethyl xanthate (), potassium ethyl xanthate (PEX), and sodium isopropyl xanthate (SIPX) …

In this work, a new technique to treat Pt–Pd sulfide flotation concentrates and spent auto-catalysts by pressure cyanidation is put forward, and the results of 5 kg-scale batch experiments in a 50 L autoclave are reported for process development. ... The content of platinum group metals (PGMs) in proterozoic platinum ores is about 1–10 …

In the optimization of platinum group metal flotation plants, various parameters are considered in order to achieve the desired recovery and grade of the precious metals. There should be a balance ...

Abstract. Platinum Group Metals (PGMs) play a significant role in the manufacturing of catalysts, super alloys, electronics, space materials, biomedical equipments, jewellery, etc. due to their excellent electrical and thermal conductivity as well as chemical resistivity. The rising demand of PGMs in industrial applications and their …

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...

Synopsis The Kell Process has been developed for the extraction of platinum group metals (PGMs)and base metals from sulphide flotation concentrates. The process has been successfully tested on several different sulphide flotation concentrates, including those from the UG2 chromitite horizon and the Platreef mafic/ultramafic layer. It has been …

DOI: 10.1016/j.mineng.2023.108216 Corpus ID: 259765305; The valorisation of platinum group metals from flotation tailings: A review of challenges and opportunities @article{Gibson2023TheVO, title={The valorisation of platinum group metals from flotation tailings: A review of challenges and opportunities}, author={Borbor A.K.K. …

¶The behaviour of platinum-group elements (PGE) during milling and flotation of the UG-2 chromitite layer is still poorly understood. The PGE in the UG-2 chromitite occur primarily in discrete ...

The uniqueness of Platinum-Group Elements (PGE) deposits and their formation dictates the development of the treatment process and the reagent regime for different ore types. There is however little data published on the flotation of PGE-bearing minerals due to its highly confidential nature (Bulatovic, 2003).

Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these minerals with base metal sulfides, chromites, and silicates, fine grinding is necessitated.

In the flotation of platinum group minerals (PGMs) in South Africa, CuSO 4 is used as an activator. The Bushveld Complex mineralogy is such that PGMs are frequently closely associated with base metals such as chalcopyrite, pyrrhotite and pentlandite ( Schouwstra and Kinloch, 2000 ) and hence CuSO 4 is used as an activator …

ABSTRACT The unique physical and chemical properties of platinum group elements are making them indispensable in many modern industrial applications. Platinum-group minerals are usually beneficiated by flotation or gravity separation followed by flotation. Due to poor liberation characteristics and interstitial attachment of these …

Considering the average content of 1.5 g of platinum, 1.3–1.4 g of palladium, and 0.15 g of rhodium per kilogram of catalytic converter, the potential recycling of catalytic converters from these retired vehicles could yield an estimated 75 kg of platinum, 70 kg of palladium, and 7.5 kg of rhodium.

In order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) are contained which include sulphides, arsenides, tellurides, and ferroalloys among others, while at the same time ensuring the optimal depression of gangue minerals. In order to …

The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, …

In order to increase the recovery of PGMs by flotation, it is necessary to optimise the liberation of the key minerals in which the platinum group elements (PGEs) …

An investigation into the effects of UG2 Ore variability on froth flotation. N. V. Ramlall. Environmental Science, Engineering. 2014. South Africa is the world's largest producer of platinum group elements (PGEs). Mining takes place in the Bushveld Complex, and recent statistics, (Mudd, 2010), showed that the UG2 reef is the main…. Expand.

This study investigates the flotation kinetics of individual platinum-group elements (PGEs) and gold, namely Pt, Pd, and 2E+Au (i.e., Pt+Pd+Au), in the context of Platreef ore flotation.

Download Citation | On Oct 1, 2023, Borbor A.K.K. Gibson and others published The valorisation of platinum group metals from flotation tailings: A review of challenges and …

A brief summary of the different beneficiation and extraction techniques practiced at different places are discussed in detail. Flotation and enhanced gravity separation techniques used in some of the major platinum group metal producing plants for recovery of the platinum group of elements are also highlighted and conclusions are …

The Geological Occurrence, Mineralogy, and Processing by Flotation of Platinum Group Minerals (PGMs) in South Africa and Russia. by. Cyril O'Connor. 1,* and. Tatiana Alexandrova. 2. 1. Department of …