rhenium recovery technologies

Review of Methods for Obtaining Rhenium from Man …

Recovery of rhenium from molybdenum and copper

The current technology for rhenium recovery involves capturing Re 2 O 7 from the gases produced during Mo and Cu pyrometallurgical processing. During the oxidative processing of the Cu and Mo sulfide ores, the rhenium contents are also oxidized to the volatile Re 2 O 7, which reports to the gas phase that also contains the SO 2 …

Rhenium recovery from secondary raw materials

Abstract. Rhenium is an irreplaceable component in some catalysts and heat-resistant alloys. Although much required, rhenium production from natural minerals is limited due to its scarcity and ...

Recovery of rhenium from a molybdenite roaster fume as high …

The recovery of rhenium from the fume was about 85% as calculated from mass balance, indicating some gaseous Re might have re-condensed or re-crystallised as aerosol and settled in the cool part of the fume extraction circuit. ... Review of technologies for rhenium recovery from mineral raw materials. Hydrometallurgy, 109 (2011), pp. 1-8. …

Review of rhenium extraction and recycling technologies …

Rhenium can be recovered together with tungsten, molybdenum, platinum and other valuable metals from spent catalysts, which contain about 0.3 wt% Re. Every …

Review on metal extraction technologies suitable for critical metal

Section snippets Extractive metallurgy of mining and processing waste. Critical metal recovery from solid mining and processing wastes can be challenging due to: i) the wastes consisting of subeconomic concentrations of primary ore minerals/metals whereas ores, by definition, contain economic concentrations, ii) the formation of …

Extraction of Rhenium from Lead Sludge of Copper Production

The recovery of rhenium in solution as ReO4- is 95–96%, they contain up to 520 mg/L of rhenium. ... "Review of technologies for rhenium recovery from mineral raw materials in Kazakhstan," Hydrometallurgy, vol. 109, no. 1-2, pp. 1–8, 2011. View at: Publisher Site | Google Scholar.

(PDF) Sorption of rhenium and uranium from solutions of their …

The base mineral raw materials for recovery of rhenium are solid and liquid by-products of copper, lead and uranium production.In pyrometallurgical processing of sulfide copper concentrates ...

(PDF) Review of rhenium extraction and recycling …

The present work addresses the recovery of rhenium from scrub liquor of molybdenite concentrate roasting fume and dust by solvent extraction method.

Selective recovery of rhenium from the simulating

Introduction. Rhenium (Re) is the rarest metallic element in the world. It is widely used in the fields of chemical industry, metallurgy, aerospace and national defense [1], [2] owing to its excellent physical and chemical properties such as a high melting point of 3180 °C and the highest modulus of elasticity of all the refractory metals (420 GPa).

—USBM SX/EW process flowsheet for rhenium recovery (Churchward …

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 ...

(PDF) Rhenium

Abstract. World mine production of rhenium from the main known sources in 2012 has been estimated at about 44.8 tonnes. Porphyry deposits accounted for roughly 85 to 90 per cent of primary rhenium ...

Efficient photochemical recovery of rhenium from aqueous …

Recovery of rhenium from aqueous solutions by photoinduced-electron transfer from an electron donor to excited-state ReO 4 − is reported for the first time. Specifically, irradiation of aqueous ReO 4 − in the presence of 2-propanol as the electron donor efficiently decreased the ReO 4 − concentration in the solution and resulted in …

Rhenium | Chemical Element, Alloying Agent | Britannica

Rhenium occurs up to about 20 parts per million in molybdenite and to a lesser extent in sulfidic copper ores. The recovery of rhenium is aided by the concentration of its volatile heptoxide (Re 2 O 7) in the flue dust and gases given off during the smelting of molybdenite ore or from its concentration with the platinum metals in the anode sludge during …

Hydrometallurgical Extraction of Rhenium from Mo-Bearing

Abisheva ZS, Zagorodnyaya AN, Bekturganov NS (2011) Review of technologies for rhenium recovery from mineral raw materials in Kazakhstan. Hydrometallurgy 109:1–8. CrossRef CAS Google Scholar Zhan-fang C, Hong Z, Zhao-hui Q (2009) Solvent extraction of rhenium from molybdenum in alkaline solution. …

Recovery of Molybdenum from Low Concentration Molybdenum …

Molybdenum, due to its high boiling point and high melting point, is an important non-renewable strategic resource for developing new and high-tech technologies [1,2,3].Molybdenite (MoS 2) concentrate is the material to produce molybdenum in industry, and it is usually processed by pyrometallurgy [4,5,6].In the process of pyrometallurgy, …

Ion exchange recovery of rhenium from industrially relevant …

Sorption recovery of rhenium from acidic sulfate and mixed nitrate–sulfate solutions containing molybdenum; A. Chmielarz et al. Development of the technology for recovery of rhenium in Polish copper smelters; S.F. Chung et al. Longitudinal dispersion of liquid flowing through fixed and fluidized beds

Review of Methods for Obtaining Rhenium from Man-Made

A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. ... The degree of rhenium recovery in the solution was 93-94 %. View. Show abstract ...

Recycling of Rhenium from W–Re-Alloyed Scraps by a

Rhenium (Re) was recycled from W–Re-alloyed scraps by a pyrometallurgical method, in which the scraps were first oxidized in air at 675 °C to volatize into Re2O7 vapor. The Re2O7 vapor was condensed and leached in ammonia solution, forming NH4ReO4 powder with a regular polyhedral shape and purity over …

Recovery of Rhenium from Molybdenum and Copper

Rhenium is recovered during pyrometallurgical processing of molybdenum sulfide and copper sulfide ores; the traditional technology involves removing rhenium(VII) oxide, Re2O7, from the sulfurous ...

Study on kinetics and mechanism of Re(VII) ion adsorption and

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(VII) from aqueous solutions are mainly based on ion-exchange resins ( Guo et al., 2019 ) and solvent extraction ( Hong et al., 2020 ; Patil and Shinde, 1974 ).

Author's personal copy

Recovery of rhenium from the wash sulfuric acid is carried out by solvent extraction technology, shown inFig. 1 (Abisheva and Zagorodnyaya, 2002; Zagorodnyaya et al., 1997).

Rhenium – a valuable and rare element

Limited resources make rhenium one of the rarest metals in the Earth's crust. Only certain ores contain traces of rhenium and its extraction takes place exclusively as a by-product of the processing of these ores. This makes it vitally important to recover this rare element by recycling used materials containing rhenium.

The improvement of rhenium recovery technology from …

The improvement of rhenium recovery technology from W-Re alloys. Article. Full-text available. Nov 2018. Olga G. Kuznetsova. A. M. Levin. Mikhail Sevostyanov. …

Leaching kinetics, separation, and recovery of rhenium and …

Recycling rate of rhenium reached more than 50% due to its scarce availability and the growing demand for rhenium containing superalloys in high-tech engines and turbines [1], [12]. This interest is aided by the fact that many governments consider rhenium as an element of strategic military importance, and are investing in recycling research to ...

Rhenium | U.S. Geological Survey

Rhenium is one of the rarest elements in Earth's continental crust; its estimated average crustal abundance is less than 1 part per billion. Rhenium is a metal that has an extremely high melting point and a heat-stable crystalline structure. More than 80 percent of the rhenium consumed in the world is used in high-temperature superalloys, …

Alloy information helps prioritize material criticality lists

The European Commission currently designates twenty-six materials (mostly metals) and three metal groups as critical, while the U.S. list comprises thirty-two materials (mostly metals) and two ...

The improvement of rhenium recovery technology from …

A basic technological scheme of the Re recovery process is proposed. It includes anodic dissolution of W-Re alloys, precipitation of calcium tungstate from the …

Rhenium recovery from ammonia solutions

A new technology platform called Looping Sulfide Oxidation (LSO) has been proposed to produce molybdenum and copper using alternative process chemistries. A detailed thermodynamic study of the reaction conditions used in LSO process indicates that rhenium recovery is possible at higher rates than currently realized in the industry.

The improvement of rhenium recovery technology from …

The improvement of rhenium recovery technology from W-Re alloys. November 2018. DOI: CC BY 3.0. Authors: Olga G. Kuznetsova. Russian Academy of Sciences. A. M. Levin. Institute of Metallurgy...