Brown algae based new sorption material for fractional recovery …
Hydrometallurgical process is appropriate to deal with low-grade Mo concentrates, but leaching efficiency of Mo is low and numerous expensive oxidants are consumed. ... Recovery Rhenium from roasted dust through super Para-magnetic Nano-particles. International Journal of Refractory Metals and Hard Materials, Volume 60, 2016, …
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Recovery Rhenium Market Size, Growth, Forecast 2023–2030
Recovery rhenium refers to the process of extracting and recycling rhenium from various sources such as spent catalysts, scraps, and residues. Rhenium, a rare and expensive metal, is an important ...
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How to Separate & Recover Molybdenum
In current technology, rhenium is recovered from the roaster gases produced during the oxidation of molybdenite concentrates. The gases are scrubbed and the dilute rhenium solution passed through a strong base resin to adsorb the rhenium. Elution is accomplished with NH4SCN; the … See more
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The characterisation and origins of interphase
The recovery of rhenium from acidic wash solution originating from a copper smelting process using sodium thiosulfate were investigated. Effects of reaction time, reaction temperature, flocculant addition and redissolubility of precipitate on the precipitation of rhenium have been studied.
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Selective recovery of Rhenium from industrial leach solutions …
Rhenium recovery is predicted to be a process with a great potential because over 80% of rhenium can be recovered (Shen et al., 2021). Currently, the processes used to recover Re ...
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Hydrometallurgical Extraction of Rhenium from Mo-Bearing …
Rhenium concentration in scrubbed liquor remains significantly less (30–200 mg/L) than Mo(VI) concentration []; however, the high economic value of rhenium over molybdenum is more attractive to the metallurgists in recent time.Flue-dusts' leaching in water/dil. H 2 SO 4 followed by ion exchange and solvent extraction are the major …
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Recovery of rhenium from a molybdenite roaster fume as high …
Rhenium (Re) was recovered as high purity ammonium perrhenate (APR) from a scrub liquor produced by a pilot plant treating 2000 m 3 /h of a fume discharged from a molybdenite roaster. The hydrometallurgical process adopted incorporates first a neutralisation stage using lime to remove most of Mo, all Cu, As and other minor …
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Recovery of rhenium from aqueous mixed metal …
Recovery. Selectivity. Photoreaction. Molybdenum. Tungsten. 1. Introduction. Rhenium, a minor metal with a high melting point (3180 °C, second only to that of …
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Recovery of Rhenium from Molybdenum and Copper
Conditions at which Re2O7 is reduced to rhenium metal by S2 have been identified and key process conditions are outlined to maximize performance of the LSO scheme and rhenium recovery. Discover ...
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Recovery of rhenium from molybdenite calcine by a resin-in-pulp process
This paper introduces a resin-in-pulp (RIP) hydrometallurgical process, which is widely used in gold leaching and recovery industry, to recover rhenium effectively and economically from molybdenite calcine by leaching, absorbing and eluting operations. With fresh water leaching and strong basic anion resin absorbing simultaneously, followed by …
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IURPVXOIXULFPHGLDXVLQJ$05 Rhenium from Reline …
rhenium recovery with impregnated resins and Levextrtel-type resins named as Solid Extractants (TVEX) in FSU countries [1, 7, 11], which combine the properties of ionexchange resins and - selective solvent extractants. Purolite A170 anionite is among the most wide-spread resins used today for rhenium recovery from industrial liquors [69].
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Co-volatilizing-water leaching process for efficient utilization …
Rhenium-bearing molybdenite concentrate is a typical mineral resource to recover molybdenum and rhenium, but has long been poorly utilized via oxidative roasting-leaching route. In this work, a novel flowsheet consisting of chloride leaching, co-volatilization, selective condensation, and water leaching has been proposed and verified …
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(PDF) Application of thermal analysis to the rhenium recovery process
The phases for sample S1 are: (Ca, Mg)S, CuS–MeS, complex compounds of [Ca]//CO3,SO4, matte and Re in low percentage. At Tp3 = 609 C, the mass gain is probably associated with 123 Application of thermal analysis to the rhenium recovery process from copper and molybdenum…
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(PDF) Extractive Metallurgy of Rhenium: A Review
A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no …
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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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Extractive metallurgy of rhenium: a review
Selective dissolution and recovery of rhenium and process is the complete removal of the ion exchange circuit platinum. shown in Fig. 14. Experiments were performed on crushed and uncrushed catalysts in both packed columns and agitated The following summaries will present examples of both of leach vessels.
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Theoretical Prediction of Rhenium Separation from …
Introduction. Rhenium (Re) is an extremely rare and precious element with high melting and boiling points. It is also the only refractory metallic element that does not react with carbon. 1−4 Consequently, Re has important applications in petroleum and aerospace industries. It is mostly used in the form of superalloys (78%), with the …
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Extractive metallurgy of rhenium: a review | Mining, …
A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no known primary rhenium deposits; …
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Recovery of Molybdenum and Rhenium Using Selective …
The base mineral raw materials for recovery of rhenium are solid and liquid by-products of molybdenum, copper, lead and uranium production. Therefore, the recovery of rhenium from them is usually carried out by a hydrometallurgical process.36) The hydrometallurgical process for the produc-tion of rhenium from the related by-products can be ...
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Recovery Rhenium from roasted dust through super Para …
In this research, after providing metal ions solution, the absorption of Rhenium ions is examined under different operational conditions through the super Para-magnetic Nano-particles of Fe3 O 4, which helped to determine the best conditions for absorption to occur. Washing the Nano-absorbent after recovering Rhenium ions from Nano-particles ...
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Recovery of rhenium from copper leach solutions using ion …
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 97.13% after approximately 960 BVs of leach solution flow.
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Review of rhenium extraction and recycling …
Recycling rhenium from spent alloys and catalysts is a multi-step process combining pyrometallurgical and hydrometallurgical techniques, where its separation and …
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Rhenium(VII) solvent extraction with mixtures of tertiary …
Introduction. Tertiary aliphatic amines R 3 N with hydrocarbon radicals of the С 8 –С 10 groups are widely used in rhenium technology. In particular, they have long been employed in commercial recovery of rhenium from scrubbing sulphuric acid solutions of the gas purification system at copper smelters of the Zhezkazganredmet state enterprise, …
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Recovery of rhenium from molybdenum and copper
The recovery of rhenium from the Mo and Cu ores has been estimated at 40–60% and significant opportunity exists to improve the efficiency of the process [13]. A new technology known as Looping Sulfide Oxidation (LSO) has been proposed to process MoS 2 concentrates and Cu sulfide concentrates to MoO 2 and anode Cu, respectively …
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Recovery Rhenium Market Size, Growth, Forecast 2023–2030
Recovery Rhenium, also known as reclaimed rhenium, refers to the process of extracting and reusing rhenium, a rare and valuable metal, from various industrial waste streams, such as spent catalysts…
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Recovery of rhenium from molybdenum and copper …
The recovery of rhenium from the Mo and Cu ores has been estimated at 40–60% and significant opportunity exists to improve the efficiency of the process [13]. A …
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Recovery Rhenium Market Size, Growth and Forecast from …
Recovery Rhenium, also known as rhenium recycling, refers to the process of extracting and reusing rhenium from various sources, such as spent catalysts, electronic waste, and aerospace components.
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Recovery of ReO4− by weakly basic anion exchangers: Modeling …
The superiority of weak anion exchangers in Re recovery stems from favorable interactions between the perrhenate anion and the alkylated amine groups. Moreover, Re can be eluted from weak anion exchangers with dilute NaOH or NH 4 OH thus allowing simple process for production of rhenium salts, e.g. NH 4 ReO 4. The …
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Selective recovery of rhenium from molybdenite flue-dust …
The recovery of rhenium from waste superalloys has always been a research focus. This study focuses on the performance of extraction of rhenium and its separation with molybdenum in alkali leaching solution of waste superalloy by methyl trioctylammonium chloride (N263). ... Hydrometallurgical process is appropriate to deal …
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Review of rhenium extraction and recycling technologies …
In order to increase rhenium recovery in this process, some additives are used in the solution to oxidize the low valence rhenium oxide in the flue gas when using water scrubbing for pyrometallurgical rhenium streams (Zhang and Zhao, 2007). The solution also contains ~ 50 g/L H 2 SO 4 after washing the gases. Part of rhenium …
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