Platinum group | stone 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 stone behaviour of these metals is paradoxical
Separating the Platinum Group Metals by Liquid-Liquid ...
Separating the Platinum Group Metals by Liquid-Liquid Extraction NEW PROCESS HAS POTENTIAL ECONOMIC ADVANTAGES OVER CONVENTIONAL SELECTIVE PRECIPITATION By P. Charlesworth Marthc.! Kuqtenhurg Refiners (I’K) Limited, Ro>ston, England To extract the platinum group metals from ore, and to refine them to the very high purity required for their many applications,
Platinum group - Wikipedia
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).
A review of methods of separation of the platinum …
1.3. Properties of the platinum-group metals and chemistry important in their separation. In order to appreciate the rationale behind the separation of each of the PGM from a concentrate, it is necessary to identify some key aspects of PGM chemistry.
Separating the Platinum Group Metals by …
The platinum group metals platinum, palladium, rhodium, iridium, osmium and ruthenium together with silver and gold generally occur in nature associated with the major base metals iron, copper, nickel and cobalt and a wide range of minor elements such as lead, tellurium, selenium and arsenic, and both technical and commercial considerations demand that the individual platinum group metals be ...
EP1577408A4 - Method for separating platinum …
platinum group group element separating platinum separating Prior art date 2002-11-29 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy …
Platinium Group - Powerful ticketing software and …
Platinium Group (PG) occupies a prominent role in the ticketing industry. Interacting with some of the biggest names of the Sports and Entertainment businesses, the company provides its powerful technology to international event organisers across the world.
US3920790A - Separating and purification of …
A method of performing an aqua regia leach on a mixture of PGMs and gold wherein prior to the leach step the PGMs and gold are alloyed with lead by fusing a lead compound, a flux and a reductant for the lead compound if necessary, allowing the melt to solidify, removing the slag formed and dissolving the lead in nitric acid, the alloying procedure tending to render ruthenium and iridium less ...
Platinum Group Element - an overview | …
(B) Platinum-group element plus Au signature of the S4, Paraburdoo, and Reivilo layers, chondrite normalized. All display a relatively flat pattern with depletion in Pd. (C) Trace and rare earth element spidergram of the Kuruman and Dales Gorge spherule layers, normalized to upper continental crust.
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Separation and purification of platinum group …
25-11-1975 · In a method for separating palladium from a mixture of PGMs (platinum group metals), which contains palladium and at least one other PGM, by precipitating the palladium with dimethylglyoxime from a solution of the mixture, the improvement wherein (a) the solution is that of amine complexes (formed in solution) of the metals and (b) said metals are in a reduced state; with the …
CiteSeerX — Separating the Platinum Group …
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): To extract the platinum group metals from the ore, and to refine them to the very high purity required for their many applications, requires a multitude of complex operations. A t present the final re.fining stage that produces the individual platinum group metals is carried out by selective precipitation from a ...
Platinum Group - All New Projects by Platinum …
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Gold Ore, Silver Ore and Platinum Group Metals …
11-10-2013 · Silver, Gold, and Platinum group metals ores are presented in this second video which educates viewers on exploration and mining of precious metals ores. This …
Rapid and selective recovery of palladium from …
15-11-2018 · Yamada, M., Rajiv Gandhi, M. & Shibayama, A. Rapid and selective recovery of palladium from platinum group metals and base metals using a thioamide-modified calix[4]arene extractant in ...
Method for separating platinum group element - …
17-11-2005 · In order to achieve this object, the invention provides a separation process for platinum group elements comprising: a step (A) for treating a material containing selenium/tellurium and platinum group elements with alkali, a step (B) for leaching selenium/tellurium, and a step (C) for separating the platinum group element-containing leaching residue and the selenium/tellurium leachate.
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Platinum - Element information, properties and …
The very properties of platinum that had made it so hard to work with became valued and platinum was used for lab equipment, and other applications where its broad stone resistance was required. Johnson Matthey perfected the techniques of separating and refining the platinum group metals and in 1879 Matthey produced a standard metre measure made of a platinum and iridium alloy.