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Catalytic reforming with rhenium-platinum catalyst ...

OSTI.GOV Patent: Catalytic reforming with rhenium-platinum catalyst containing more rhenium than platinum

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rhenium platinum containing

One example of a material containing both platinum and rhenium is a class of materials called superalloys Creepresistant rheniumcontaining nickel and cobalt base superalloys were developed to provide high temperature performance in severe environments, such as those encountered in gas turbine engines and in blades for gas turbine generators . Author: Louis A Britton, Georges Z Markarian ...

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rhenium platinum containing - aproject.pl

Rhenium. Well there are many of them A good deal of the rhenium extracted is made into super-alloys to be used for parts in jet engin Not surprisingly for a transition metal, rhenium is also a good catalyst In fact a combination of rhenium and platinum make up the catalyst of choice in the very important process of making lead-free and high-octane.

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US4356081A - Catalytic reforming with rhenium-platinum ...

Catalytic reforming with rhenium-platinum catalyst containing more rhenium than platinum Download PDF Info Publication number US4356081A. US4356081A US06/144,137 US14413780A US4356081A US 4356081 A US4356081 A US 4356081A US 14413780 A US14413780 A US 14413780A US 4356081 A US4356081 A US 4356081A Authority US United States Prior art keywords platinum rhenium

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Catalytic reforming with rhenium-platinum catalyst ...

Catalytic reforming with rhenium-platinum catalyst containing more rhenium than platinum . United States Patent 4356081 . Abstract: A new reforming process employs a new rhenium-platinum catalytic composite having a rhenium to platinum weight ratio in the range of not less than 2 to about 5, whereby longer relative cycle length is obtained when reforming a naphtha having less than about 0.5 ...

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US Patent for Catalytic reforming with rhenium-platinum ...

Catalytic reforming with rhenium-platinum catalyst containing more rhenium than platinum . Apr 28, 1980. A new reforming process employs a new rhenium-platinum catalytic composite having a rhenium to platinum weight ratio in the range of not less than 2 to about 5, whereby longer relative cycle length is obtained when reforming a naphtha having less than about 0.5 ppm by weight of sulfur than ...

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Method for platinum recovery from materials containing ...

The present disclosure relates to hydrometallurgical methods for the isolation and recovery of platinum from rhenium-containing materials, and more particularly, from superalloys containing rhenium, platinum, and other metals. The disclosure also relates to apparatuses capable of carrying out the hydrometallurgical methods and the product streams generated from the methods and apparatuses.

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rhenium platinum containing

One example of a material containing both platinum and rhenium is a class of materials called superalloys Creepresistant rheniumcontaining nickel and cobalt base superalloys were developed to provide high temperature performance in severe environments, such as those encountered in gas turbine engines and in blades for gas turbine generators . Author: Louis A Britton, Georges Z Markarian ...

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rhenium platinum containing - aproject.pl

Rhenium. Well there are many of them A good deal of the rhenium extracted is made into super-alloys to be used for parts in jet engin Not surprisingly for a transition metal, rhenium is also a good catalyst In fact a combination of rhenium and platinum make up the catalyst of choice in the very important process of making lead-free and high-octane.

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Rhenium - Wikipedia

Rhenium in the form of rhenium-platinum alloy is used as catalyst for catalytic reforming, which is a chemical process to convert petroleum refinery naphthas with low octane ratings into high-octane liquid products. Worldwide, 30% of catalysts used for this process contain rhenium.

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rhenium platinum containing

METHOD FOR PLATINUM RECOVERY FROM MATERIALS. Sep 28, 2017 The present method provides for the isolation of platinum from an alloy containing platinum and rhenium, in which the platinum and/or rhenium that is produced does not contain more than 10% by weight, more preferably not more than 5% or 1% by weight, and most preferably not more than 0.1% by weight of any other

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rhenium platinum containing - bottledwatermachine.fr

CCR PLATFORMING PDF. nbsp 0183 32 Most catalytic reforming catalysts contain platinum or rhenium on a silica or silica-alumina support base and some contain both platinum and rhenium This page was last edited on 11 Decemberat To maintain the required reaction temperature and the rate of reaction the vaporized stream is platformming in the second fired heater before it flows through the

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The Role of Rhenium and Sulfur in Platinum-Based ...

Chemisorption, ir, and XPS data indicate that rhenium atoms covered with chemisorbed sulfur atoms divide the metal surface of platinum-containing catalysts into ensembles consisting of a small ...

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Method of rhenium and platinum concentrates receiving from ...

The method for extracting platinum group metals and rhenium from spent catalysts by hydrochloric acid leaching solution containing active chlorine, extraction of metals by sorption on a solid ion exchanger with the desorption of the ammonia solution, followed by the separation of rhenium from platinum adsorption on strong-base anion exchanger with desorption and deposition from decorate in the ...

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Hydroconversion of n-heptane on catalysts containing ...

1990-05-07  Applied Catalysis,61 (1990) 283-292 283 Elsevier Science Publishers By., Amsterdam Printed in The Netherlands Hydroconversion of n-Heptane on Catalysts Containing Platinum, Rhenium and Platinum Rhenium on Sodium Mordenite A.K. ABOUL-GHEIT, M.F. MENOUFY and A.K. EL-MORSI Egyptian Petroleum Research Institute, Nasr City, Cairo (Egypt) (Received 6 September

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Extraction of rhenium and platinum from the dead reforming ...

Download Citation Extraction of rhenium and platinum from the dead reforming catalyst by electrochemical hydrochlorination The behaviors of platinum, rhenium and

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Catalytic reforming - Wikipedia

Most catalytic reforming catalysts contain platinum or rhenium on a silica or silica-alumina support base, and some contain both platinum and rhenium. Fresh catalyst is chlorided (chlorinated) prior to use. The noble metals (platinum and rhenium) are considered to be catalytic sites for the dehydrogenation reactions and the chlorinated alumina provides the acid sites needed for

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Method for platinum recovery from materials containing ...

The present disclosure relates to hydrometallurgical methods for the isolation and recovery of platinum from rhenium-containing materials, and more particularly, from superalloys containing rhenium, platinum, and other metals. The disclosure also relates to apparatuses capable of carrying out the hydrometallurgical methods and the product streams generated from the methods and apparatuses.

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Platinum-rhenium catalysts carbon monoxide - Big Chemical ...

Platinum-rhenium catalysts carbon monoxide In considering the nature of platinum-rhenium catalysts, ... adsorbed on platinum and rhenium sites in platinum-rhenium catalysts were different from those found with catalysts containing only platinum or rhenium. However, for catalysts calcined in air at 500°C prior to reduction in hydrogen, it was concluded that the platinum exhibited much less ...

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rhenium platinum containing stone crusher essay

Some platinum metals, especially ruthenium but also rhenium, osmium, and iridium, form luminescent complexes with nitrogen-containing ligands, e.g., 2,2′-bipyridine (bpy). These complexes may participate in redox reactions with concomitant chemiluminescence in three different ways.

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Rhenium–platinum antitumor systems The Ukrainian ...

In particular, we describe the work of the rhenium-platinum antitumor system (introduction of rhenium and platinum compounds). Among known metal-based anticancer drugs and drug candidates dirhenium(III) compounds differ profoundly due to their strong antiradical and antioxidant properties determined by quadruple bond unsaturation. Such advantages of metal complexes as more

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Hydroconversion of n-heptane on catalysts containing ...

1990-05-07  Applied Catalysis,61 (1990) 283-292 283 Elsevier Science Publishers By., Amsterdam Printed in The Netherlands Hydroconversion of n-Heptane on Catalysts Containing Platinum, Rhenium and Platinum Rhenium on Sodium Mordenite A.K. ABOUL-GHEIT, M.F. MENOUFY and A.K. EL-MORSI Egyptian Petroleum Research Institute, Nasr City, Cairo (Egypt) (Received 6 September

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rhenium platinum reforming - africaentrepreneurs.co.za

Most catalytic reforming catalysts contain platinum or rhenium on a silica or silicaalumina support base, and some contain both platinum and rhenium. Fresh catalyst is chlorided (chlorinated) prior to use. The noble metals (platinum and rhenium) ... Get Price. Catalytic reforming process (Patent) A process wherein, in a series of reforming zones, employing one or a series of reactors, each ...

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Rhenium - Element information, properties and uses ...

Until quite recently no mineral containing rhenium combined with just a non-metal had ever been found. Not until 1992 that is, when a team of Russian scientists discovered rhenium disulphide at the mouth of a volcano on an islands off the east coast of Russia between the Kamchatka peninsula and the Japanese islands. The chemistry of rhenium is also rather interesting. For example, it shows the ...

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[PDF] Mixed-metal rhenium-platinum cluster compounds ...

The reaction between [Re 2 (μ-H) 2 (CO) 8 ] and [Pt(PPh 3 ) 2 (C 2 H 4 )] at 273 K results in the insertion of the [Pt(PPh 3 ) 2 ] fragment into a Re(μ-H)Re bond, giving the triangular cluster [Re 2 Pt(μ-H) 2 (CO) 8 (PPh 3 ) 2 ], characterized spectroscopically. On increasing the temperature, an irreversible transformation occurs, due to the exchange of one phosphine and one carbonyl ...

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The mineralogy of Rhenium - Mindat.org

The final data column compares this percentage against the percentage of all minerals that contain the element listed in each row. Click on a heading to sort. Element Valid Minerals listed with element and Rhenium % of Re minerals Relative to % in all minerals ; Sulfur: 6 minerals with Re and S: 100.00%: 398.86% higher: Iron: 3 minerals with Re and Fe: 50.00%: 137.93% higher: Copper: 3 ...

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The mineralogy of Platinum - Mindat.org

The final data column compares this percentage against the percentage of all minerals that contain the element listed in each row. Click on a heading to sort. Element Valid Minerals listed with element and Platinum % of Pt minerals Relative to % in all minerals; Sulfur: 42 minerals with Pt and S: 36.21%: 81.61% higher: Copper: 37 minerals with Pt and Cu: 31.90%: 154.99% higher: Iron: 21 ...

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