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separation platinum metals:

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

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

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Modeling of Separation of Platinum Metals by Counter ...

Modeling of Metal Separation, Ionic Liquids Received: March 29, 2017 Accepted: May 51, 2017 Published: August 23, 2017 Modeling of Separation of Platinum Metals by Counter-Current Chromatography Vera Belova Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia Email address [email protected] Vera Belova.

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A review of methods of separation of the platinum-group ...

01-12-2005  The platinum-group metals (PGM) are technologically important metals which are becoming increasingly relevant in reducing harm to the environment. The separation and purification of the PGM is largely carried out by exploiting differences in the chemistry of their anionic chloro-complexes.

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GB9918437D0 - Separation of platinium group metals ...

separation group metals platinium platinium group metals Prior art date 1999-08-05 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 of the status listed.) Ceased

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

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. The chloride system provides the most effective operating medium for platinum group metals and is widely used.

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Selective Separation of Platinum Group Metals via ...

Mutual separation of platinum group metals (PGMs) is a particularly challenging issue in metal recovery technology. In this study, we report the successful separation of Pt(IV), Pd(II), and Rh(III)...

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Modeling of Separation of Platinum Metals by Counter ...

Modeling of Metal Separation, Ionic Liquids Received: March 29, 2017 Accepted: May 51, 2017 Published: August 23, 2017 Modeling of Separation of Platinum Metals by Counter-Current Chromatography Vera Belova Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia Email address [email protected] Vera Belova.

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Separation of platinum group metals - Anglo American ...

Separation of platinum group metals . United States Patent 6364931 . Abstract: A hydrochloric acid solution containing platinum group metals has its acidity adjusted to 5.5 to 6.5M HCl and its redox potential adjusted to at least 500 mV, before being treated by chromatography. Particularly clean ...

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Sparrho Separation of platinum group metals

This invention concerns a process and a medium for the separation of metals in solution by chromatography, particularly for the separation of platinum group metals from one another and from base metals. Previously, it has been proposed to use gel chromatography to separate platinum group metals (PGM) from one another on an industrial scale.

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A review of methods of separation of the platinum-group ...

01-12-2005  The platinum-group metals (PGM) are technologically important metals which are becoming increasingly relevant in reducing harm to the environment. The separation and purification of the PGM is largely carried out by exploiting differences in the chemistry of their anionic chloro-complexes.

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EP1504129A1 - Separation of platinum group metals -

A process for the chromatographic interseparation of rhodium in admixture with at least one base metal from a feed solution includes complexes of these metals. The process includes contacting the solution with at least one chromatographic medium, and eluting one or more fractions such that at least one fraction includes rhodium complex substantially free from base metal contamination.

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SEPARATION OF PLATINUM METALS BY PAPER

osti.gov journal article: separation of platinum metals by paper electrophoresis.. separation of platinum metals by paper electrophoresis.

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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,

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Chromatographic separation of platinum group metals

18-10-2013  Chromatographic separation of platinum group metals from simulated high level liquid waste using macroporous silica-based adsorbents. Author links open overlay panel Yuanlai Xu a Seong-Yun Kim a Tatsuya Ito b Haruki Tokuda a Keitaro Hitomi a Keizo Ishii b. Show more. Share. Cite.

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Selective Separation of Platinum Group Metals via ...

Mutual separation of platinum group metals (PGMs) is a particularly challenging issue in metal recovery technology. In this study, we report the successful separation of Pt(IV), Pd(II), and Rh(III)...

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Modeling of Separation of Platinum Metals by Counter ...

Modeling of Metal Separation, Ionic Liquids Received: March 29, 2017 Accepted: May 51, 2017 Published: August 23, 2017 Modeling of Separation of Platinum Metals by Counter-Current Chromatography Vera Belova Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia Email address [email protected] Vera Belova.

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Separation of Platinum Group Metals (PGM) from Liquid

Separation of Platinum Group Metals (PGM) from Liquid Media Technetium (particularly Tc 7+ ), ruthenium (particularly Ru 4+ ), rhodium (particularly Rh 4+ and Rh 3+ ), rhenium (particularly Re 7+ ), and iridium (particularly Ir 4+ and Ir 3+ ) can be ionically grouped with the Platinum Group Metals (PGM) because they form stable oxyanion complexes

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SEPARATION OF PLATINUM METALS FROM SPENT

deposited valuable platinum metals. The spent catalysts are solid waste and also the rich raw material for recovery of precious metals. The aim of this paper is a separation of present precious metals from spent catalysts. Samples of spent catalysts were used for laboratory experimental researches with the following average content of platinum

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A Procedure for the Separation of the Six Platinum Metals ...

Bahavior of Platinum Group Metals toward Ion Exchange Resins. Analytical Chemistry 1953, 25 (11) , 1628-1630. DOI: 10.1021/ac60083a014. G. H. Ayres and E. W. Berg. Separation of Palladium from Platinum, Iridium, and Rhodium with Dimethylglyoxime.. Analytical Chemistry 1953, 25 (6) , 980-981

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Separation of four platinum metals by anion-exchange in ...

Distribution coefficients of Pt, Ir, Pd and Rh in the systems Dowex 1 [Br−]−HBr plus 0.0035M bromine and Dowex 1 [Br−]−HBr plus 2% N2H4HCl, were determined with the aid of radioactive tracers by batch equilibration for the resins of nominal cross-linking 2, 4 and 8, respectively. Column experiments showed that Dowex 1X4 should be used for separations because of the favourable ...

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Separation of Platinum Metals Using the Ring-Oven ...

24-11-2020  A scheme was developed for the qualitative separation of the six platinum metals from a drop of mixture by using the ring-oven technique. Osmium( VIII), palladium(II), ruthenium(III), rhodium(III), iridium(III), and platinum(IV) were transferred one by one to the ring zone by washing, respectively ...

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Separation and preconcentration of platinum-group

01-10-2016  Separation and preconcentration of platinum-group metals from spent autocatalysts solutions using a hetero-polymeric S, N-containing sorbent and determination by high-resolution continuum source graphite furnace atomic absorption spectrometry. Eskina VV(1), Dalnova OA(2), Filatova DG(3), Baranovskaya VB(4), Karpov YA(5).

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The Separation of Platinum Group Metals (PGM) in

(1980). The Separation of Platinum Group Metals (PGM) in Chloride Media by Isothiouronium Resins. Separation and Purification Methods: Vol. 9, No. 2, pp. 209-265.

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Platinum metals-solution chemistry and separation

Platinum metals-solution chemistry and separation methods (ion-exchange and solvent extraction). Al-Bazi SJ(1), Chow A. Author information: (1)Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada.

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