rhenium recovery molybdenum
rhenium recovery molybdenum
Recovery and separation of rhenium and molybdenum from ,
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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 (TA-MNP) and quaternary amine (QA-MNP) groups as ,...

Recovery of Molybdenum and Rhenium Using Selective ,
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A study has been conducted for the separate recovery of molybdenum and rhenium from alkali leaching solution of molybdenite roasting dust by a selective precipitation method Two kinds of ....

Rhenium - USGS
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Based on 80% recovery of estimated rhenium contained in molybdenum disulfide concentrat Secondary rhenium production is not included 2 Does not include wrought forms or waste and scrap The rhenium content of ammonium perrhenate is 6942% 3 Defined as production + imports – exports 4...

NIOSHTIC-2 Publications Search - 10007771 - Extraction and ,
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Molybdenum and rhenium were recovered as ammonium paramolybdate and ammonium perrhenate Electrolysis of brine-concentrate pulps to generate a hypochlorite oxidizing agent in situ resulted in the dissolution of 989 and 991 pct of the molybdenum and rhenium, respectively, at an energy consumption of 137 Kwhr/lb of molybdenum extracted...

Recovery of Molybdenum and Rhenium Using Selective ,
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The precipitation efficiency of molybdenum was higher than 99% in these conditions and molybdenum was observed to be precipitated as ammonium molybdate Contrary to the precipitating behavior of molybdenum, rhenium was precipitated very little in the given conditions, which suggested a possibility for the selective recovery of molybdenum and ....

Rhenium | Lipmann Walton & Co Ltd
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They later went on to process metallic rhenium from a virtually pure sample of molybdenite, (MoS2 58% molybdenum, 398% sulphur and 2 ppm Re) At room temperature, rhenium is inert in air, but when temperatures reach above 400°C it will rapidly oxidise forming a heptoxide which is ,...

The Development and Applications of the Dust and Rhenium ,
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A device, was used to recover dust and rhenium from molybdenum concentrate roasting exhaust gas, was developed The device combine the self-swash dust catcher and spherical tray tower technology: the self-swash dust catcher was used to recover dust and rhenium; spherical tray tower was used to further dust and rhenium recovery and its application to engineering in practice...

Recovery of Molybdenum & Rhenium From Molybdenite ,
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May 01, 2019· According to the results, recovery of rhenium from the scrub liquor is not practical unless molybdenum is removed in advance The extraction of molybdenum was carried out using a D2EHPA-TBP system which resulted in up to 998% Mo extraction in a two-stage solvent extraction at ,...

US8956582B2 - Rhenium recovery - Google Patents
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US8956582B2 US13/255,541 US201013255541A US8956582B2 US 8956582 B2 US8956582 B2 US 8956582B2 US 201013255541 A US201013255541 A US 201013255541A US 8956582 B2 US8956582 B2 US 8956582B2 Authority US United States Prior art keywords rhenium species acid aqueous solution values Prior art date 2009-03-13 Legal status (The legal status is an assumption and is not a legal ,...

Freeport-McMoRan Sierrita Inc
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disulfide, rhenium recovery, molybdenum disulfide production and packaging, molybdenum trioxide production and packaging, leach stockpiles, and solution extraction/electrowinning faciliti Sierrita produces copper concentrate, cathode copper and copper sulfate, along with...

Recovery of molybdenum and rhenium in scrub liquors of ,
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Abstract The present work addresses the recovery of rhenium from scrub liquor of molybdenite concentrate roasting fume and dust by solvent extraction method According to the results, recovery of rhenium from the scrub liquor is not practical unless molybdenum is removed in advance The extraction of molybdenum was carried out using a D2EHPA-TBP system which resulted in up to ,...

Process for recovery of molybdenum and rhenium from ores ,
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In the recovery of molybdenum and rhenium values from sulfide ores, silica impurity is reduced to low levels by adding alumina to a carbonate fusion mix in an amount sufficient to combine with the silica present to form insoluble aluminum silicates, thus preventing its removal from the fusion mass during removal of soluble molybdenum and rhenium values by leaching, and thereby avoiding the ....

US3681016A - Recovery of rhenium and molybdenum values ,
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a process for recovering rhenium and molybdenum values from solution comprising: extracting the soluble molybdenum and rhenium values with an amine solvent, stripping the values from the amine extract with an ammonium hydroxide solution, purifying the strip solution of copper, iron, silicon, phosphorous, and arsenic, crystallizing the molybdenum as ammonium tetramlybdate containing a ,...

Highly enhanced selectivity for the separation of rhenium ,
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Jun 10, 2015· So the recovery of rhenium and molybdenum is of great economic significance because of their higher use value Rhenium occurs in molybdenum disulfide (molybdenite) ores, and it is obtained as a by-product of molybdenum refinement The similar chemical behaviors and properties of rhenium and molybdenum make the separation quite difficult ...

Recovery of rhenium from molybdenum and copper concentrates ,
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Jan 05, 2021· Projections for the expanded use of rhenium as a catalyst in the catalytic reforming of gasoline stocks to make low-lead gasoline prompted the Federal Bureau of Mines to investigate techniques for rhenium and molybdenum separation and recovery...

Electro-Oxidation of Molybdenum Concentrate Using Bipolar ,
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With the purpose of extracting rhenium from molybdenum concentrate, electrolysis of slurry, prepared by mixing molybdenum sulfide concentrate and 10 m ,...

Separation of rhenium and molybdenum from molybdenite ,
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Apr 09, 2010· Molybdenum resources around the world are mainly associated with porphyry copper or Molybdenite (MoS2) is the main Mo mineral that has rhenium in its crystal lattice This paper investigates the recovery of rhenium and molybdenum ,...

Recovery of Rhenium and Molybdenum from Molybdenite ,
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Selective precipitation recovery of rhenium from aqueous solutions containing a coexisting metal (molybdenum, tungsten, or aluminum) by means of UV–visible light irradiation in the presence of 2 ....

Recovery of molybdenum and rhenium in scrub liquors of ,
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Abstract The present work addresses the recovery of rhenium from scrub liquor of molybdenite concentrate roasting fume and dust by solvent extraction method According to the results, recovery of rhenium from the scrub liquor is not practical unless molybdenum is removed in advance The extraction of molybdenum was carried out using a D2EHPA-TBP system which resulted in up to ,...

MOLYBDENUM, FERROMOLYBDENUM, AND AMMONIUM ,
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Molybdenum metal is a refractory metal used as an alloying agent in steels, cast irons, and superalloys3 , Rhenium Recovery Scrubber Roasting Leaching Wastewater Gas Wastewater Technical Grade Molybdic Oxide Sublimation Leaching Acid Water Pure Molybdic Oxide Reduction...

Molybdenum-Rhenium Implantable Medical Devices
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molybdenum 475% rhenium medical devices •An overview of the powder metallurgy processing methods for molybdenum 475% rhenium rods and sheet manufacturing •An examination of mechanical properties at room temperature of molybdenum 475% rhenium rod and sheet •Review of the microstructures and fractography of the molybdenum 475% rhenium ....

How Is Molybdenum Mined and Processed? | Refractory Metals ,
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Rhenium Recovery Some molybdenite concentrates, a by-product from copper ore, contain small amounts of rhenium (< 010%) The recovery of rhenium by molybdenum roaster is one of the main industrial sources of this rare metal Molybdenum Iron Smelting About 30-40% of the industrial molybdenum oxide is processed...

Recovery of Rhenium and Molybdenum from Molybdenite ,
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Selective precipitation recovery of rhenium from aqueous solutions containing a coexisting metal (molybdenum, tungsten, or aluminum) by means of UV–visible light irradiation in the presence of 2 ....

Behavior of Extraction, Stripping, and Separation ,
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rhenium while compared to molybdenum, the recovery of rhenium from molybdenum bearing materials has received much attention towards economic as well as environmental benefits1,2) Moreover, the separation of rhenium from molybdenum in aqueous solution is a difficult task in hydrometallurgy owing to their adjacent position, in the...

Molybdenum-Rhenium Implantable Medical Devices
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molybdenum 475% rhenium medical devices •An overview of the powder metallurgy processing methods for molybdenum 475% rhenium rods and sheet manufacturing •An examination of mechanical properties at room temperature of molybdenum 475% rhenium rod and sheet •Review of the microstructures and fractography of the molybdenum 475% rhenium ....

Materials | Free Full-Text | Treatment of Rhenium ,
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Yeast Saccharomyces cerevisiae biomass was applied for rhenium and accompanying elements (copper and molybdenum) removal from single- and multi-component systems (Re, Re-Mo, Re-Cu, and Re-Mo-Cu) Yeast biomass was characterized using X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy The effects of biosorption experimental parameters such as solution ....

PROCESS FOR THE RECOVERY OF MOLYBDENUM AND RHENIUM ,
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A pollution-free process for the dissolution in an acidic media of molybdenum sulfides with the formation of soluble molybdenum and rhenium ions followed by the recovery of these ions from solution in the electrolyte media, the process characterized by certain critical conditions, these being the use of: 1 an alkali metal and/or alkaline earth metal chloride electrolyte; 2 an acidity range ....

Molybdenum Ore Processing by Flotation
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May 05, 2016· This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangueIt is also basically sound for many other friable sulphide ores, such as antimony, silver and even some lead or The basic ideas stressed in this moly flotation flowsheet are the importance of simplicity and the quick removal ....

Molybdenum Processing - IMOA
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Rhenium recovery Some of the by-product molybdenite concentrates from copper mines contain small quantities (<010%) of rhenium Molybdenum roasters equipped to recover rhenium are one of the principal commercial sources for this rare metal...

Recovery of rhenium from molybdenum and copper ,
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Recovery of rhenium from molybdenum and copper concentrates during the Looping Sulfide Oxidation process Author links open overlay panel Joseph D Lessard Daniel G Gribbin Leonid N ,...