Magnetic Concentration of Platinum Group Metals from Catalyst Scraps Using Iron Deposition Pretreatment. Yu-ki Taninouchi 1, Tetsuo Watanabe 1 & Toru H. Okabe 1 Metallurgical and Materials Transactions B volume 48, pages 2027–2036 (2017)Cite this article
The concentrations and distribution of platinum group elements (Pt, Pd, Rh) in airborne particulate matter were studied in a period of one year from August 2001 to July 2002 in urban and in nonurban areas. Airborne dust samples were collected as a total amount (particles with an aerodynamic diameter <22 microm) and classified using an eight-stage Andersen impactor (<10 microm) at three ...
The six platinum group metals (PGMs) platinum, palladium, rhodium, ruthenium, iridium and osmium occur together in nature alongside nickel and copper. Along with gold and silver, the PGMs are precious metals and are very rare elements in the Earth's crust. The annual production of PGMs amounts to around 400 tonnes, several orders
Concentration of some platinum-group metals in coal. Int. J. Coal Geol., 1: 95--99. New data on some platinum group metals in coal indicate that the concentration of Pt is generally less than about 5 ppb, that of Pd is generally less than 1 …
Platinum is a lustrous silvery-white, malleable, ductile metal and a member of group 10 of the periodic table of the elements. It has the third highest density, behind osmium and iridium . Platinum is unaffected by air and water, but will dissolve in hot aqua regia, in hot concentrated phosphoric and sulphuric acids, and in molten alkali.
separating the platinum-group elements in the converter matte from the base metals, either by magnetic concentration or by leaching, to produce a very rich platinum-group metal concentrate containing about 60% platinum-group elements; and, (e) refining this concentrate to individual platinum-group metals with purities in excess of 99.9%.
There are between 3-7 grams of platinum group metals in a standard catalytic converter, but the amount varies based on manufacturer and model. In terms of the extent to which they are used, there are generally around 3 to 7 grams of PGMs in a standard catalytic converter. However, the amount varies depending on the size of the unit.
Platinum, together with the other platinum group metals, is present at low levels in the lithosphere, with an average platinum concentration of 0.001–0.005 mg/kg (4). Concentrates of economic importance are present in the Transvaal, South Africa, in Siberia and in the Urals at
Accurate and precise determination of platinum group elements (PGEs) at ppb concentrations in geological samples is important but problematic. This paper reports an improved analytical method for the determination of Pt, Pd, Ru, Ir and Rh at sub-ppb levels by isotope dilution-inductively coupled plasma mass
Platinum group elements (PGE) including Ru, Rh, Pt and Pd have been quantified in air particulate matter with an aerodynamic diameter equal or less than 10 microns (PM 10) using inductively coupled plasma mass spectrometry (ICP-MS).PM 10 aerosols have been collected from three sites representing various activities in Jeddah city, Saudi Arabia. These locations are residential site with heavy ...
initial concentration and preservation of PGEs, their assciation with anoo r-thosites, and formation of layered intrusions are discussed in detail. The main aim of this article is analysis of the requirementsinitial concentration and — preservation of PGE and PGM (Platinum Group Minerals) during the early
DOI: 10.4236/NR.2017.83012 Corpus ID: 85442975. Concentration of Platinum Group Elements during the Early Earth Evolution: A Review* @article{Pilchin2017ConcentrationOP, title={Concentration of Platinum Group Elements during the Early Earth Evolution: A Review*}, author={A. Pilchin and L. Eppelbaum}, journal={Natural Resources}, year={2017}, volume={8}, pages={172-233} }
From this stage onwards the concentration of the platinum group metals is more rapid and the processes entirely chemical. First the slime is subjected to roasting and leaching attacks to remove the last of the copper, nickel, iron and sulphur. This produces an enriched slime running approximately 65 per cent of the platinum group metals and gold.
Platinum Group Elements (PGEs) Platinum group elements are mined from mafic and ultramafic igneous rocks, in alluvial and placer deposits, hydrothermal veins, and contact mineralization deposits. They also occur in the mineral cooperite and in igneous rocks (Pohl, 2011). Here is a map of all PGE deposits in the world: (Goodfellow, 2006)
Source: Anglo Platinum. Notes: Grades are Anglo Platinum typical values, which may not match industry average. Mining Concentration Refining FabricationSmelting End Use Activities Output •Run of mine Ore (Merensky/ UG2/Platreef, 3-6 4E g/t) •Composite concentrate (100-500 4E g/t) •Tailings (to tailings dams) •Chromite recovery
Platinum Group Metals Ltd. (AMEX:PLG) price on Friday, October 29, fall -3.77% below its previous day's close as a downside momentum from buyers pushed the stock's value to $2.30. A look at the stock's price movement, the close in the last trading session was $2.39, moving within a …
The platinum-group elements (PGEs)—platinum, palladium, rhodium, ruthenium, iridium, and osmium—are metals that have similar physical and chemical properties and tend to occur together in nature. PGEs are indispensable to many industrial applications but are mined in only a few places. The availability and accessibility of PGEs could be disrupted by economic, environmental, political, and ...
The U.S. Geological Survey's 2014 Platinum Group Elements Fact Sheet describes some of reasons why productive deposits are so elusive: The Earth's upper crust contains only about 0.0005 parts per million (ppm) platinum. The average grade of platinum-group elements (PGEs) in ores mined for their PGE concentrations range from 5 to 15 ppm.
The platinum group metals contain palladium, osmium, iridium, rhodium, ruthenium, and, of course, platinum. Precious metals were first found in Bushveld Igneous Complex in 1897. Sudbury Basin. Although platinum is very rare on Earth, it is found in greater abundance on the moon and on asteroids. It's not surprise then that in areas on Earth ...
Platinum-group minerals in the LG and MG chromitites of the eastern Bushveld Complex, South Africa. Mineralium Deposita, 50, 1-17. 149 Oguri, K., Shimoda, G. & Tatsumi, Y., 1999. Platinum-group elements in geological samples using improved NiS fire-assay and tellurium coprecipitation with inductively coupled plasma-mass spectrometry (ICP-MS).
The platinum group elements, their atomic numbers, chemical symbols, and value ..... 44 Table 2. Tonnage and grade characteristics of reserves and resources associated with reef-type platinum-group elements deposits. Past production is not included. Large …
Concentration mechanisms of the platinum-group elements in layered intrusions of the Kola-Karelia region ... on ophiolitic associations are employed to discuss some petrological aspects of the ...
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).
Platinum is about 30 times rarer than gold due to its low concentration in the Earth's crust, the WPIC reports. The majority of platinum supply comes from South Africa and Russia.
As a result, even though the concentration of PGEs is extremely small, these mines are fairly economical because in the process of extracting platinum, copper and nickel are also extracted. Other, smaller deposits do exist, including the Sudbury Basin, an impact crater in Ontario, in the Urals in Russia, and the Great Dike in Zimbabwe.
The Development Of A Concentration Procedure For The Platinum Group Metals And Chromite From The Ug 2 Reef Of The Bushveld Complex. Download full The Development Of A Concentration Procedure For The Platinum Group Metals And Chromite From The Ug 2 Reef Of The Bushveld Complex Book or read online anytime anywhere, Available in PDF, ePub and Kindle.
David Hutchinson, Jeffrey Foster, Hazel Prichard, Sarah Gilbert, Concentration of Particulate Platinum-Group Minerals during Magma Emplacement; a Case Study from the Merensky Reef, Bushveld Complex, Journal of Petrology, Volume 56, Issue 1, January 2015, Pages 113–159, ...
Platinum is an extremely rare metal, occurring at a concentration of only 0.005 ppm in Earth's crust. It is sometimes mistaken for silver. Platinum is often found chemically uncombined as native platinum and as alloy with the other platinum-group metals and iron mostly.
Platinum: Thirty-six of the 122 samples had "less than" values for platinum (generally <2 ppb). The highest concentration of Pt (aside from the suspect value from the coal waste sample from Texas) is 33 ppb from the Greenbrier Co., WV sample. The second sample from that location has only 2 ppb Pt.