process recovery rhenium

US4321089A Process for the recovery of molybdenum and ...

A process for the recovery of molybdenum and rhenium from their sulfide ores which comprises subjecting the ores to microwave energy in the presence of oxygen to selectively heat the sulfides to convert them to oxides, and recovering the formed oxides. Alternatively, the sulfides in the ore are selectively heated with microwave energy in the presence of chlorine to convert them to the ...

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New Hampshire Addiction Treatment | The Process Recovery ...

The Process Recovery Center. Trusted Effective. Our integrative and evidence based treatment modalities are proven to yield results. You can enter treatment with peace of mind and the knowledge that you are receiving the highest calibre of care. Life is a journey. Recovery is a process.

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

This is a post refereed version of the paper published in: Separation and Purification Techniques. Samuel K Mamo, Mathieu Elie, Mark G. Baron, Andrew M Simons, Jose GonzalezRodriguez* (2019) Leaching kinetics, separation, and recovery of rhenium and component metals from CMSX4 superalloys using hydrometallurgical processes, Separation and Purification Techniques 212, 150160.

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rhenium magnetic separation

Recovery and separation of rhenium and molybdenum from . Jun 01 2019 · The recovery and separation of rhenium and molybdenum from acidic aqueous solutions that simulate mine waters is studied through an adsorption process using magnetite nanoparticles functionalized with tertiary (TAMNP) and quaternary amine (QAMNP) groups as adsorbents.

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Extraction and recovery of molybdenum and rhenium from ...

Get this from a library! Extraction and recovery of molybdenum and rhenium from molybdenite concentrates by electrooxidation : process demonstration. [Bernard J Scheiner; R E Lindstrom; D L Pool; United States. Bureau of Mines.] The Federal Bureau of Mines has successfully demonstrated an electrooxidationsolvent extractioncarbon adsorption process for recovering molybdenum and rhenium ...

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Molybdenum Processing

Rhenium recovery. Some of the byproduct molybdenite concentrates from copper mines contain small quantities (<%) of rhenium. Molybdenum roasters equipped to recover rhenium are one of the principal commercial sources for this rare metal.

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Selective Rhenium Recovery from Spent Reforming Catalysts ...

1830 Ind. Eng. Chem. Res. 1999, 38, 18301836 Selective Rhenium Recovery from Spent Reforming Catalysts T. N. Angelidis,* D. Rosopoulou, and V. Tzitzios Laboratory of General and Inorganic Chemical Technology, Department of Chemistry (Box 114), Aristotle University, GR 54006, Thessaloniki, Greece

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Recovery of Platinum and Rhenium from Wastespent ...

Mar 31, 2016· The recovery of platinum achieves %, and the purity of sponge platinum climbs to %, and rhenium recovery rate reaches % with …

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Rhenium: a hidden asset DigitalRefining

There are many reasons for this, but the main reason concerns the inability to separate the remaining Re with a practical process for its recovery and subsequent refining. In fact, most precious metals catalyst refiners recover rhenium by dissolving their carriers (typically aluminium oxide) using strong caustic or acidic chemicals in a process ...

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Rhenium | KGHM Corporate Website

Rhenium's unique properties make it suitable and attractive for all applications requiring resistance to high temperatures, and damage and deformation. For KGHM rhenium is a byproduct of the copper production process. Metallic rhenium. KGHM produces its metallic rhenium in the form of gray tablets.

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Recovery of Radiogenic Osmium187 from Sulfide Copper Ores ...

The implementation of this technology of processing mother liquor derived from solidphase stripping of rhenium results in an average recovery from these solutions of 80 per cent of the osmium metal. (80 per cent is direct recovery of osmium from the mother liquor, the other 20 per cent in solid and liquid byproducts is recycled.)

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US Patent for Rhenium recovery Patent (Patent 8,956,582 ...

There is provided a hydrometallurgical process of recovering rhenium values from mixtures thereof with other metal values in which the rhenium values constitute a minority amount, for example superalloys, which comprises subjecting the mixture to strongly oxidizing acid conditions, preferably an aqueous mixture of hydrochloric acid and nitric acid, so as to form perrhenate species of at least ...

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TANAKA Precious Metals|Recovery and Refining

As a last measure, success was found in the handling process for industrial waste. Products and Solutions:Low Precious Metal Materials and Recycling (Recovery and Refining to Remanufacture) by Tanaka Precious Metals; Maximize the advantages of the limited assets “Urban Mines”

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PAPER OPEN ACCESS The improvement of rhenium recovery ...

rhenium recovery in the form of perrhenic acid from binary WRe alloys. It is shown the desirability of avoiding the precipitation of metal in the form of potassium perrhenate. A basic technological scheme of the Re recovery process is proposed. It includes anodic dissolution of

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US8956582B2 Rhenium recovery Google Patents

There is provided a hydrometallurgical process of recovering rhenium values from mixtures thereof with other metal values in which the rhenium values constitute a minority amount, for example superalloys, which comprises subjecting the mixture to strongly oxidizing acid conditions, preferably an aqueous mixture of hydrochloric acid and nitric acid, so as to form perrhenate species of at least ...

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Novel Aqueous Processing of the Reverted TurbineBlade ...

The extraction of rhenium increased from 9% to 98% with an increase in extractant concentration from to mol L–1 in the organic phase. On a metaltometal basis, the recovery value of 93% rhenium as NH4ReO4 ( g L–1 Re in the solution) demonstrated the potential of the present process.

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Recovering platinum/rhenium from spent hydrocarbon ...

As rhenium values have increased, recovery techniques from spent catalysts have not kept pace. However, most users look to their refiners for increased recovery yields. Finally, there is a practical, costeffective breakthrough that addresses this issue: after years of research, Sabin scientists have developed a unique method of recovering ...

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Recovering rhenium photochemically Chemical Engineering ...

Apr 01, 2016· And unlike solventextraction methods, the new process generates no nitrogencontaining wastewater. Traditionally, rhenium is obtained by collecting perrhenate ions (ReO4–) in water from rhenium(VII) oxide (Re2O7) in molybdenite (molybdenum ore) roasting gas, then repeatedly recrystallizing it by means of heat concentration and cooling.

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US4557906A Recovery of rhenium Google Patents

In a process for recovering rhenium, a starting material containing tungsten and rhenium is reacted with sodium hydroxide and an oxidizing reactant to form a fused solid. The fused solid is dissolved in water to solubilize the tungsten and rhenium values and then pass through an anion exchange resin to remove the rhenium values and form a solution containing the tungsten values.

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Recovery and separation of molybdenum and rhenium from a ...

Get this from a library! Recovery and separation of molybdenum and rhenium from a process solution. [D D Fischer; D J ; R E Lindstrom; United States. Bureau of Mines.] Recovery and separation of molybdenum and rhenium from a process solution was accomplished by a technique developed by the Federal Bureau of Mines involving a combined solvent extraction and ...

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(PDF) Separation and recovery of ruthenium: A review

of the recovery process reported by Naito et al. was similar. to the method developed for the recovery of noble metals. from HLLW by Jensen [49] at Pacific North West Lab, but.

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Recovery of Molybdenum Rhenium From Molybdenite …

Table of ContentsElectrooxidation Theory PrinciplesEquipment and Operating ProcedureBipolar Cell DevelopmentLargeScale 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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Extractive metallurgy of rhenium: a review | SpringerLink

A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no known primary rhenium deposits; thus, the method in which primary rhenium is produced is dependent on the commodity of which it is a byproduct, , copper, molybdenum, uranium, etc. In addition, focus on the recovery of rhenium from secondary sources, …

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recovery of platinum and rhenium

processes used for the recovery of nobel metals from spent catalysts would be worthy and considerable. There are some methods for recovery of platinum , rhenium and other nobel metals from catalysts [110] .One effective method for recovery of Pt and Re from spent catalysts containing these metals or from solutions containing the

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Efficient, EnvironmentallyCompatible Recovery ...

Jul 26, 2012· Opportunities exist for enhancing rhenium yield through technological improvements in discrete steps in the recovery process. Due to rhenium"s excellent high temperature properties (high creep resistance, high melting point, etc.) it is widely used as an alloying agent for high temperature applications including: PtRe petroleum reforming ...

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Recovery of rhenium from copper leach solutions using ion ...

Nov 01, 2017· To verify the process of extracting rhenium in industrial application, three ion exchange columns packing with 105 L resins were operated to recover rhenium by direct ion exchange method. In the adsorption process, the recovery rate of rhenium reached % after approximately 960 BVs of leach solution flow.

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RHENIUM PROMETIA

Rhenium production is feasible because of the large ore tonnage processed, the presence of sufficient molybdenite to make its recovery economically practical, and the presence of specialized facilities that allow Rhenium recovery from molybdenite. USGS estimated the total global source of Rhenium at 12,500 Mg, which corresponds to more than two

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Recovery of Palladium from Spent Activated Carbon ...

Activated carbonsupported palladium catalysts are liable to progressive deactivation even in the absence of any gaseous contaminants during the oxidation of hydrogen under ambient conditions. The high value of palladium coupled with environmental considerations means that new, efficient and cost effective methods for the quantitative recovery of palladium from such materials are required.

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(PDF) Extractive Metallurgy of Rhenium: A Review

Figure 5 —USBM SX/EW process flowsheet for rhenium recovery (Churchward and Rosenbaum, 1963). Figure 4 — Flowsheet for the recovery of rhenium from sulfuric acid scrubbing solution (Abisheva ...

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Process for rhenium recovery Nihon Kogyo Kabushiki Kaisha

Feb 25, 1986· A process for rhenium recovery by the use of an anion exchange resin, characterized in that rhenium is eluted from the rheniumadsorbed anion exchange resin with a hydrochloric acid solution containing a metal chloride selected from the group consisting of cadmium chloride and zinc chloride. 2. A process for rhenium recovery by the use of an ...

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Recent advances of rhenium separation and enrichment in ...

Freeport pressure oxidation rhenium recovery process. After the discovery of rheniite (ReS 2 ) at Kudryavyi volcano in the mid1990s, Russian researchers found that the hightemperature fumarole gases from the volcano contained rhenium (– g/t) considerably in the form of gaseous rhenium chlorides (ReCl 5 ) and fluorides (ReF 5 ).

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