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platinum group processes

Extraction and Refining of the Platinum Metals Johnson ...

The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum. They ha

PRODUCTION AND USES OF PLATINUM GROUP METALS

CHAPTER 3 PRODUCTION AND USES OF PLATINUM GROUP METALS 3.2 PRIMARY REFINING PROCESSES In primary PGM production, ores from the major deposits all go through a similar series of initial process stages involving crushing, milling, and froth fl otation to produce a base metal-PGM concentrate. This concentrate, containing considerable quantities

Commercial Processes for the Extraction of Platinum Group ...

Jan 06, 2018  Process of recovering platinum group metal. US Patent 5252305. 65. Hoffmann JE (1988) Recovering platinum-group metals from auto catalyst. JOM 40(6):40 ...

OVERVIEW OF PGM PROCESSING - Anglo American Platinum

Platinum Group Metals (PGMs) are recovered through underground and open pit mining from poly-metallic sulphide ores containing PGMs, Nickel, Copper and other metals: • Platinum (Pt), Palladium (Pd), Rhodium (Rh) and Ruthenium (Ru) are the most prevalent of the six PGMs,

Platinum group chemical element group Britannica

Platinum group, six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and platinum (Pt). The elements all possess a silvery white colour—except osmium, which is bluish white. The chemical behaviour of these metals is paradoxical

Extraction of Platinum Group Metals IntechOpen

Oct 02, 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

Platinum Group Elements - MIT

PGEs also serve as excellent catalysts for many manufacturing processes. For instance, in the commercial production of nitric acid for nitrogen fertilizers, ammonium gas is oxidized by high pressure air over a platinum-rhodium catalyst ("Platinum today: Nitric Acid"). ... There are large deposits of platinum group elements in the Merensky and ...

Extraction and Refining of the Platinum Metals

sulphur. The platinum group metals, together with some gold, total about fifty ounces to the ton. The complete process of extraction consists essentially of enriching this matte to approximately 65 per cent content of platinum metals and then treating this concentrate with acids to separate the

Separating the Platinum Group Metals by Liquid–Liquid ...

The process chemistry is the key to separation ().It must allow separation of the platinum group metals from the base metals, where the major difference is in complex formation, and also separation of individual platinum group metals from each other, to a high degree of purity.

OVERVIEW OF PGM PROCESSING - Anglo American Platinum

Platinum Group Metals (PGMs) are recovered through underground and open pit mining from poly-metallic sulphide ores containing PGMs, Nickel, Copper and other metals: • Platinum (Pt), Palladium (Pd), Rhodium (Rh) and Ruthenium (Ru) are the most prevalent of the six PGMs,

Platinum group chemical element group Britannica

Platinum group, six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and platinum (Pt). The elements all possess a silvery white colour—except osmium, which is bluish white. The chemical behaviour of these metals is paradoxical

Platinum-Group Metals Statistics and Information

Platinum supported catalysts are used in the refining of crude oil, reforming, and other processes used in the production of high-octane gasoline and aromatic compounds for the petrochemical industry. Since 1979, the automotive industry has emerged as the principal consumer of PGM. ... Platinum-Group Metals PDF Format:

Platinum Group Elements - MIT

PGEs also serve as excellent catalysts for many manufacturing processes. For instance, in the commercial production of nitric acid for nitrogen fertilizers, ammonium gas is oxidized by high pressure air over a platinum-rhodium catalyst ("Platinum today: Nitric Acid"). ... There are large deposits of platinum group elements in the Merensky and ...

What Are Platinum Group Metals (PGMs)? - ThoughtCo

Dec 10, 2018  Both platinum and palladium are often used as catalysts, meaning they speed up chemical reactions without themselves being chemically altered in the process. Iridium considered the most corrosion-resistant pure metal, can resist salts, oxides, and mineral acids, but is affected by sodium chloride and sodium cyanide.

Platinum Group Metals in Catalysis: Fabrication of ...

Mar 29, 2003  This short review article presents an overview of the preparation of platinum group metal complexes that are utilized as catalysts or catalyst precursors. The organization of this article begins with a description of the sources of the platinum group metals, goes through their basic refining and separation methodologies, and then into each individual metal's elaboration into value-added ...

Pgm refining Johnson Matthey

As the largest secondary platinum group metals (pgm) refiner in the world, we've developed highly advanced processes for extracting and separating pgms from products – so advanced that we can refine pgms to a purity of 99.95%.

Platinum Mining and Refining Education

Platinum Processes Uses. A solid platinum nugget. Image from popsci. Nuggets or grains of pure platinum can be found in nature, but more frequently, platinum is found alloyed with other metals, such as iron, copper, gold, nickel, and the other PGMs.The size of platinum grains or nuggets varies from small granules to pebbles weighing up to 20 pounds (9 kg) or more.

The Properties and Applications of Platinum

Aug 21, 2020  An alloy of the platinum group metals (PGMs), which includes platinum, was used to decorate the Casket of Thebes, an Egyptian tomb that dates back to about 700BC. This is the earliest known use of platinum, although pre-Columbian South Americans also made ornaments from gold and platinum alloys .

Industrial - Nitric Acid - PMM - Johnson Matthey

Many chemical processes employ platinum group metal catalysts to improve the efficiency of various reactions. Platinum-based catalysts have now been used in the commercial manufacture of nitric acid for a century. Nitric acid is made in three stages. The first step is the oxidation of ammonia gas with air to form nitric oxide.

Recovery of Platinum Group Metals from Spent Catalysts ...

May 07, 2018  The recovery of platinum group metals (PGMs) from spent automobile catalysts is a difficult process because of their relatively low contents in the scrap. In this study, to improve the efficiency of the existing recycling techniques, a novel physical concentration method involving treatment with FeCl2 vapor has been examined. The reactions occurring between typical catalyst components

Platinum Group Metals at Work: Industrial Applications

The Platinum Group Metals (PGMs) have several unique and valuable properties that make them indispensable for many industrial applications. The PGMs are extremely rare and are considered strategic metals or critical metals because they are necessary for many industrial and technological processes but are in short supply and have no adequate alternatives.

Platinum - Wikipedia

One suitable method for purification for the raw platinum, which contains platinum, gold, and the other platinum-group metals, is to process it with aqua regia, in which palladium, gold and platinum are dissolved, whereas osmium, iridium, ruthenium and rhodium stay unreacted.

How Is Platinum Extracted? - Reference

Apr 13, 2020  Because platinum is so rare, it must be extracted after being mined through a process that involves crushing it into incredibly small particles and separating these particles from one another. This is known as the flotation separation method, and produces a frothy layer of particles that can be skimmed to provide the extracted platinum.

OVERVIEW OF PGM PROCESSING - Anglo American Platinum

Platinum Group Metals (PGMs) are recovered through underground and open pit mining from poly-metallic sulphide ores containing PGMs, Nickel, Copper and other metals: • Platinum (Pt), Palladium (Pd), Rhodium (Rh) and Ruthenium (Ru) are the most prevalent of the six PGMs,

Platinum-Group Metals Statistics and Information

Platinum supported catalysts are used in the refining of crude oil, reforming, and other processes used in the production of high-octane gasoline and aromatic compounds for the petrochemical industry. Since 1979, the automotive industry has emerged as the principal consumer of PGM. ... Platinum-Group Metals PDF Format:

What Are Platinum Group Metals (PGMs)? - ThoughtCo

Dec 10, 2018  Both platinum and palladium are often used as catalysts, meaning they speed up chemical reactions without themselves being chemically altered in the process. Iridium considered the most corrosion-resistant pure metal, can resist salts, oxides, and mineral acids, but is affected by sodium chloride and sodium cyanide.

Platinum Group Metals in Catalysis: Fabrication of ...

Mar 29, 2003  This short review article presents an overview of the preparation of platinum group metal complexes that are utilized as catalysts or catalyst precursors. The organization of this article begins with a description of the sources of the platinum group metals, goes through their basic refining and separation methodologies, and then into each individual metal's elaboration into value-added ...

Platinum Group Metals at Work: Industrial Applications

The Platinum Group Metals (PGMs) have several unique and valuable properties that make them indispensable for many industrial applications. The PGMs are extremely rare and are considered strategic metals or critical metals because they are necessary for many industrial and technological processes but are in short supply and have no adequate alternatives.

Platinum - Wikipedia

One suitable method for purification for the raw platinum, which contains platinum, gold, and the other platinum-group metals, is to process it with aqua regia, in which palladium, gold and platinum are dissolved, whereas osmium, iridium, ruthenium and rhodium stay unreacted.

Pgm refining Johnson Matthey

As the largest secondary platinum group metals (pgm) refiner in the world, we've developed highly advanced processes for extracting and separating pgms from products – so advanced that we can refine pgms to a purity of 99.95%.

Platinum-group elements, S, Se and Cu in highly depleted ...

Platinum-group elements, S, Se and Cu in highly depleted abyssal peridotites from the Mid-Atlantic Ocean Ridge (ODP Hole 1274A): Influence of hydrothermal and magmatic processes Claudio Marchesi a*, Carlos J. Garrido a, Jason Harvey b, José María González-Jiménez c, Károly Hidas a, Jean-Pierre Lorand d, Fernando Gervilla a, e a.

The Properties and Applications of Platinum

Aug 21, 2020  An alloy of the platinum group metals (PGMs), which includes platinum, was used to decorate the Casket of Thebes, an Egyptian tomb that dates back to about 700BC. This is the earliest known use of platinum, although pre-Columbian South Americans also made ornaments from gold and platinum alloys .

How Is Platinum Extracted? - Reference

Apr 13, 2020  Because platinum is so rare, it must be extracted after being mined through a process that involves crushing it into incredibly small particles and separating these particles from one another. This is known as the flotation separation method, and produces a frothy layer of particles that can be skimmed to provide the extracted platinum.

Geology of Platinum Properties, Mining, and Formation of ...

Apr 26, 2021  Platinum’s future value is almost certainly guaranteed, given the number and variety of uses that it enjoys throughout society. Being a malleable and ductile metal, it is ideal for jewelry, dental appliances, electrical contacts, electrical equipment, and other items that

Production of Platinum and Palladium – Two of the Rarest ...

Mar 21, 2017  The process of extracting platinum from the ore deposits is very labor intensive. In order to produce one troy once (31.135g) of pure platinum, about 7 to 12 tons of ore must be extracted in a span of six months. The first step in the extraction process is to crush the ore that contains platinum and submerge it in reagent mixture with water.

Leaching and recovery of platinum group metals from UG-2 ...

Existing processes for the recovery of platinum group metals (PGM) from UG-2 ores place stringent requirements with regard to chromite content (about 2.8 per cent) upon feed material to the plant. The conventional process sequence involves: smelting of a flotation concentrate to remove gangue material and to produce an iron-nickel-copper-PGM matte

XRF Helps Meet the Platinum Group Metals Mining Challenge

PGM extraction and refinement is also a capital- and labor-intensive process. According to the International Platinum Group Metals Association (IPA), it can take as long as six months from initial mining activities to produce the final metal. PGM ore is mined typically underground but sometimes in

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