platinum group method

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Metals smelting-collection method for recycling of platinum group

Platinum group metals (PGMs) are widely applied in the field of catalysts due to their excellent catalyst activity and high-temperature stability. ... Cyanide leaching method for recovering platinum group metals from a catalytic converter catalyst. U.S. Patent 5,160,711. Google Scholar. Baghalha M, Gh HK, Mortaheb HR (2009) Kinetics of …

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Extraction behaviors of platinum group metals from an

A novel N,N'-dimethyl-N,N'-di-(2-phenylethyl)-thiodiglycolamide (MPE-TDGA) extractant that was soluble in imidazolium-based ionic liquids (ILs), such as 1-butyl-3-methyl-imidazolium nonafluorobutansulfonate ([Bmim][NfO]), was synthesized for the efficient and selective extraction of platinum group metals (PGMs) from simulated high-level liquid …

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The Properties and Applications of Platinum

Characteristics. Platinum metal has a number of useful properties, which explains its application in a wide range of industries. It is one of the densest metal elements—almost twice as dense as lead—and very stable, giving the metal excellent corrosion resistant properties. A good conductor of electricity, platinum is also malleable …

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Enrichment of Platinum Group Metals from Spent Automotive

Platinum group metals (PGMs) are used to purify automobile exhaust gases, and more than 60% of overall production of Pt, Pd, and Rh is used to produce automobile exhaust cleaners each year [1, 2].Owing to the popularity of automobiles and increasing automobile exhaust emissions, large amounts of spent automobile catalysts have …

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Platinum Group Elements Mineralogy, Beneficiation, and …

Platinum group elements have become imperative to many modern industrial applications (automobiles, jewelry, pharmaceuticals, electronics, fuel cells, etc.) but are mined in only a few places.

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Recovery of platinum group metals from spent automotive converters …

Platinum group metals have been classified as critical raw materials (CRMs) due to their strategic importance for the economy, therefore PGMs should be provided with a circular economy model for them. ... A review of methods of separation of the platinum-group metals through their chloro-complexes. React. Funct. Polym., 65 (3) (2005), pp. …

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Recovery of Noble Metals from Spent Catalysts: A Review

In the past several decades, many technologies to recover platinum group metals (PGMs) and rhenium (Re) from electronic waste and spent catalysts have been developed and published. The reasons for the rising interest in this area are: (1) The abundance of these elements in the earth's crust is < 10−3 ppm (~ 6.6 × 104 tons …

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(PDF) Refining Approaches in the Platinum Group Metal

The present study investigated a novel method of alkaline ferricyanide leaching to extract palladium (Pd) from a Western Australian disseminated platinum-group metal (PGM) oxide ore that bears Ni ...

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Solvent Extraction as a Method of Recovery and Separation of Platinum

Platinum group metals (PGMs) are a group of six metals with high market value and key importance to many industrial sectors. Due to their low prevalence in the Earth's crust and high demand, these metals have been recognized as critical materials for many years. Along with economic development, the natural resources of the platinum …

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Characterizing and recovering the platinum group minerals––a review

Abstract. Methods of characterizing and recovering the platinum group minerals are reviewed in this paper. First, a classification of platinum group minerals (PGMs) ore types is briefly introduced, followed by the introduction of some representative platinum group minerals. Second, the sample preparation techniques for mineralogy …

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Removal of platinum group metals from the used auto

The possibility of removing platinum group metals (PGM) from the used catalytic converters applying pyrometallurgical methods was also investigated.Metals such as copper, lead, cadmium and ...

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Nickel sulphide fire assay for the collection of the platinum group

Fire assay is a classical method for the separation of the platinum group elements and gold (PGE + Au). In nickel sulphide fire assay nickel and sulphur are used for the preconcentration of PGE + Au. In the past the authors have successfully reduced the weight of the collectors used without affecting the recovery of the elements from silicate material …

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Recovery and extraction of platinum from spent

According to the biological methods and with the help of desferrioxamine B, about 30% of platinum has been obtained from the spent catalyst (H [ 13 ]. The refinery reforming catalyst was tested to recover platinum by the bioleaching method. The percentage of platinum recovery by oxalic acid in the bioleaching process increases …

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Efficient enrichment of platinum group metals from spent …

Process flow chart of high-pressure transformation and the subsequent normal acid leaching method to enrich platinum group metals from spent automotive catalysts. Under the alkali high temperature solution, γ-Al 2 O 3 dissolved and cordierite in the SAC underwent a phase transformation, producing the ALLR and ALLS, respectively. The ALLS ...

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Determination of platinum group metals in dust, water, soil and

An efficient method that can suppress dust with the PGMs is required to avoid resuspension of the PGMs with dust, which pose health hazard to the people in the surrounding communities next to the cement plant. ... Liu Y, Tian F, Liu C, Zhang L (2015) Platinum group elements in the precipitation of the dry region of Xinjiang and factors ...

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Direct leach approaches to Platinum Group Metal (PGM) ores and

Platinum group metals are conventionally recovered from high-grade concentrates (typically assay of 200 to over 2000 g/t PGM with 0.4–2.8% Cr 2 O 3) by the traditional matte–smelting–refining technique depicted in Fig. 2 (Cole and Joe Ferron, 2002).Ore is first ground by conventional multistage crushing and ball milling, or by semi …

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(PDF) Extraction of Platinum Group Metals

Platinum group elements have become imperative to many modern industrial applications (automobiles, jewelry, pharmaceuticals, electronics, fuel cells, etc.) but are mined in only a few places.

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Commercial Processes for the Extraction of Platinum Group

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 limited natural ...

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Nickel sulfide and lead fire assay techniques in the determination …

Fire assay is a classical method for the separation of the platinum group elements and gold (PGE + Au). In nickel sulphide fire assay nickel and sulphur are used for the preconcentration of PGE + Au.

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(PDF) Commercial Processes for the Extraction of Platinum Group Metals

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 ...

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Determination of PGMs namely platinum, palladium and rhodium …

Platinum group metals are usually produced as by-products of copper-nickel ore refining. The classical lead fire assay is still an efficient method to extract and concentrate gold and platinum group metals like platinum, palladium and rhodium, together called the 4E elements as it is relatively inexpensive, accurate and have low …

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Process for recovering platinum group metals

A method of recovering platinum group metals (PGMs) from PGM- containing material, wherein the materia! is mixed with a chloride salt at a ratio of 40% to 300% by mass on a dry weight basis chloride to PGM-containing material, and the mixture is then reacted with chlorine gas in a chJorination reaction at a temperature of 750 to 850°C to ...

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Analysis of Platinum Group Elements in Environmental Samples …

The natural occurrence of platinum group elements (PGEs) in the upper earth crust is typically in the sub μg kg −1 range and is limited to distinct sites where PGEs are part of noble metal-rich ores (Ru: 0.1 μg kg −1; Rh: 0.06 μg kg −1; Pd: 0.4 μg kg −1; Os and Ir: 0.05 μg kg −1 and Pt: 0.4 μg kg −1) (Wedepohl 1995).Their main sources of …

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A Procedure for the Separation of the Six Platinum Metals from …

Chemical Methods for Separating and Determining Metals Contained in Platiniferous Materials. Analytical Chemistry 1953, 25 (11), 1617-1621. DOI: 10.1021/ac60083a012. W. …

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A new approach to recover platinum-group metals from spent …

Platinum group metals (PGMs), especially platinum (Pt), palladium (Pd), and rhodium (Rh), are widely used in automotive three-way catalysts (TWCs). PGM resources are scarce and unevenly distributed, with global reserves of 69,000 t in 2020, of which more than 99% are concentrated in South Africa, Russia, Zambia, and the United …

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Solvometallurgical Recovery of Platinum Group Metals from …

Extraction and separation of platinum group metals (PGMs) from secondary raw materials are usually carried out via hydrometallurgical processes. These processes use strongly …

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Recovery and Enrichment of Platinum Group Metals from Spent …

The methods of recovering platinum, palladium, and rhodium from spent automobile catalysts mainly include pyrometallurgical process, hydrometallurgical …

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Highly efficient recovery of platinum, palladium, and rhodium from

An efficient iron melting method was proposed for the enrichment of platinum group metals at low temperature (<1400 °C). The principle of spent catalysts carriers and slag design was put forward. The oxidations and sulfides of PGMs were found to be easily reduced to the metallic state during the melting

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Analysis of Platinum Group Elements with the iCAP PRO …

Figure 1. The six Platinum Group Elements (PGEs). These can be further sub-divided into the Iridium-Platinum Group Elements (IPGEs: iridium, osmium and ruthenium), and the Palladium-Platinum Group Elements (PPGEs: rhodium, palladium and platinum). Since 1979, the automotive industry has used PGEs Table 1. Instrument and method parameters.

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(PDF) Single-Step Hydrometallurgical Method for the Platinum Group

Platinum group metals (PGMs) are considered critical raw materials, thus their recycling and re-use is of outmost importance. Among the PGMs, platinum (Pt), palladium (Pd) and rhodium (Rh) are the ...

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