Rhenium Containing Separator

Rhenium: a hidden asset - digitalrefining.com

To function in hydrocarbon processes, these metals are deposited on a variety of substrates, or carriers, to meet specific requirements. In addition to PGMs, many of these catalysts also contain another valuable precious metal, rhenium (Re), which is usually used in combination with platinum.

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Molybdenum | Plansee

The strength of molybdenum increases even further the more the material is cold-worked. In contrast to that of other metals, the ductility of molybdenum materials also increases with increasing cold working. We add rhenium as an alloy element to increase the ductility of molybdenum and to reduce its brittle-ductile transition temperature.

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Method for platinum recovery from materials containing ...

Jan 21, 2016· 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 …

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Recover Rhenium by Solvent Extraction - 911metallurgist.com

Table of ContentsProcess SynthesisExperimental WorkPilot Plant Extraction Study Rhenium is industrially recovered all over the world as a by-product of molybdenite processing. There are no separate deposits of rhenium minerals. Molybdenite concentrates, produced as co-products of porphyry copper deposits, contain 0.01 to 0.2% rhenium occuring as a substitutional impurity in the …

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Rhenium: A Hidden Asset - Sabin Metal Corporation

Robert T. Jacobsen, Sabin Metal Corp., USA, discusses how rhenium in spent precious metals bearing process catalysts can prove a hidden asset, enhancing hydrocarbon processing profits. Hydrocarbon processing catalysts typically...

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Selective Rhenium Recovery from Spent Reforming Catalysts ...

Rhenium-containing reforming catalysts tolerate greater amounts of carbon formation and make it possible to operate at lower pressures and higher temperatures, which leads to improved yields and octane ratings.6 Reforming catalysts are dual functional in that they promote simultaneously reactions that are specific functions of the metal ...

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Roasting Rhenium Flotation - biofuels2050.eu

Recovery of Molybdenum & Rhenium From … Table of ContentsElectrooxidation Theory & PrinciplesEquipment and Operating ProcedureBipolar Cell DevelopmentLarge-Scale Electrooxidation TestsMolybdenum and Rhenium RecoveryConclusions As part of the goal to maximize minerals and metals recovery from primary domestic resources, design factors associated with minimizing …

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Recent advances of rhenium separation and enrichment in ...

To solve this problem, rhenium may be recovered either from raw materials (solutions from processing of copper and copper-molybdenum concentrates) with improved separation/enrichment technologies, or from recycled materials containing rhenium (such as dust, slime, spent catalysts, waste recycling alloys, etc.). The key to the question is how to ...

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Recovery of Molybdenum & Rhenium From Molybdenite …

Table of ContentsElectrooxidation Theory & PrinciplesEquipment and Operating ProcedureBipolar Cell DevelopmentLarge-Scale Electrooxidation TestsMolybdenum and Rhenium RecoveryConclusions As part of the goal to maximize minerals and metals recovery from primary domestic resources, design factors associated with minimizing current leakage in bipolar cell configurations were studied by the …

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Rhenium - Revolvy

Aug 06, 2012· Rhenium is a chemical element with symbol Re and atomic number 75. It is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table . With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust . Rhenium has the third-highest melting point and highest boiling point of any element at 5873 K. Rhenium ...

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Recent advances of rhenium separation and enrichment in ...

To solve this problem, rhenium may be recovered either from raw materials (solutions from processing of copper and copper-molybdenum concentrates) with improved separation/ enrichment technologies, or from recycled materials containing rhenium (such as dust, slime, spent catalysts, waste recycling alloys, etc.). The key to the question is how ...

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Topologically Close Packed Phases in an Experimental ...

PDF | The kinetics, morphology and composition of the formation of TCP phases in an experimental alloy containing no tungsten is studied. At high temperature P phase forms after 20 h, whereas ...

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Recycling of rhenium-containing wire scrap | Request PDF

Rhenium is a refractory metal and is one of the rarest elements. Due to its high cost, recycling of rhenium-containing scraps is of economic interest.

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recovery of platinum and rhenium - Cheresources.com

The amount of platinum and rhenium in the solution were determined by using the ICP analysis . The existing platinum and rhenium in the catalyst solution are separated from other parts of the spent catalyst in a coloumn containing ion exchange resins.The ion exchange resin is Amberjet 4200 Cl which is a strong anionic resin.

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Behavior of Extraction, Stripping, and Separation ...

The main objective of the present study is to separate the rhenium and molybdenum as well as recovery of the targeted metal ion. The behavior of extraction, stripping and separation possibilities of rhenium and molybdenum from molybdenite roasting dust leaching solutions using tri-otyl-amine (TOA) as an extractant has been investigated.

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Leaching kinetics, separation, and recovery of rhenium and ...

Apr 01, 2019· Rhenium was quantitatively recovered from the resulting HCl solution using mixed-phosphine oxide solvents . Truong et al., also employed tributyl phosphate (TBP) for selective recovery of Re from a synthetic HCl solution containing rhenium, molybdenum and vanadium . However, both methods were unable to quantitatively separate Re and Mo from the ...

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Enhancing PGM / rhenium returns from spent hydrocarbon and ...

The new baghouse is designed for the special needs of the Pyro-Re process while still being useful and fully compliant with environmental regulations as well as capture efficiency for the entire range of inorganic carrier catalyst including those that do not contain rhenium. Environmental issues

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Neptunium - Wikipedia

Neptunium is a chemical element with the symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element.Its position in the periodic table just after uranium, named after the planet Uranus, led to it being named after Neptune, the next planet beyond Uranus.A neptunium atom has 93 protons and 93 electrons, of which seven are valence electrons.

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Catalytic reforming - Wikipedia

Catalytic reforming is a chemical process used to convert petroleum refinery naphthas distilled from crude oil (typically having low octane ratings) into high-octane liquid products called reformates, which are premium blending stocks for high-octane gasoline.The process converts low-octane linear hydrocarbons (paraffins) into branched alkanes (isoparaffins) and cyclic naphthenes, which are ...

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Method of extraction of osmium and rhenium from the ...

The osmium-containing extract is subjected to the thermal treatment at 40-85°С, aged and filtered with production of the solid-phase osmium concentrate. Rhenium is extracted from the raffinate by the extractant containing 10-40 % of the tertiary amines at the ratio О:H=1:25-100.

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METHOD FOR PLATINUM RECOVERY FROM MATERIALS CONTAINING ...

Apr 27, 2017· In conventional rhenium recovery methods, it is difficult to separate such small amounts of platinum from materials containing rhenium, in order to avoid contamination of the final product. The present disclosure enables the recovery of substantially pure rhenium and substantially pure platinum from alloys containing a mixture of these and ...

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Production of nickel–cobalt concentrate in rhenium ...

It is shown that its constituent components separate quantitatively: refractory metals such as niobium, tantalum, molybdenum, and tungsten concentrate in the anodic slime, while partially cobalt and rhenium, as well as most of the aluminum, chromium, and nickel, transfer into the electrolyte.

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Rhenium and Rhenium Alloys Supplier Worldwide - H. Cross

Rhenium is distributed in extremely minute quantities throughout nature but does not exist as a separate mineral. Approximately 4 parts per billion of the earths crust contain rhenium and no ore contains more than 1 part per billion. Most rhenium today is produced as a by-product of the copper mining industry.

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Process of recovering rhenium values from complex ...

Mar 11, 1975· The reaction mixture containing the precipitated solids, either coming directly from the reactor or from the magnetic separator in those instances where iron is used as the base metal, is forwarded to a filter or other liquid-solids separation equipment wherein the solids containing precipitated rhenium values are separated from the mixture.

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Rhenium Alloys: Rhenium materials, manufacturing and products

The most common rhenium containing alloys are molybdenum 41% rhenium (Mo41%Re) and molybdenum 47.5% rhenium (Mo-47.5%Re). Rhenium (symbol Re), discovered in 1925 by German scientists Ida and Walter Noddack, is one of the last naturally occurring elements to be identified.

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Separation of rhenium and molybdenum from molybdenite ...

This paper investigates the recovery of rhenium and molybdenum from a molybdenite concentrate using a hydrometallurgical treatment method. The molybdenite concentrate is leached with nitric acid and subjected to solvent extraction to recover and separate rhenium and …

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EXTRACTION AGENT FOR PRECIOUS METALS AND RHENIUM, …

The present invention extracts precious metals from an acidic solution containing precious metals in an early and highly efficient manner. Provided is an extraction agent for precious metals that is represented by the general formula below. In the formula, R1 and R2 each represent the same alkyl group or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents ...

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Rhenium-containing phosphines and phosphine oxides : new ...

Get this from a library! Rhenium-containing phosphines and phosphine oxides : new design strategies for highly active and, or enantioselective organometallic catalysts for …

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Method for manufacturing rhenium-containing alloy powder ...

It is an object of the present invention to provide a novel and superior method for manufacturing a rhenium-containing alloy powder which makes it possible to easily and stably a nickel-rhenium alloy powder, as well as other rhenium-containing alloy powders whose main component is a metal that can be alloyed with rhenium, such as platinum ...

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Recovery of Molybdenum and Rhenium Using Selective ...

Recovery of Molybdenum and Rhenium Using Selective Precipitation Method from Molybdenite Roasting Dust in Alkali Leaching Solution Sung-Ho Joo1,2, Young-Uk Kim1, Jin-Gu Kang 2, Ho-Sung Yoon , Dong-Su Kim3 and Shun Myung Shin1,2,+ 1Department of Resource Recycling, University of Science & Technology (UST), Daejon 305-350, Korea 2Metal Recovery Group, Mineral Resources …

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