The results of an experimental study into the reduction smelting of rhenium-containing cyclone dust obtained from lead production are presented. The optimal dust processing modes characterized by the extraction of water-soluble rhenium (80–84.3%) and water-insoluble arsenic compounds (65–70%) into sodium sulfate slag are established. …Web
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Minerals Engineering Volume 161, 15 January 2021, 106719 Review of rhenium extraction and recycling technologies from primary and secondary resources …Web
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Rhenium is a scarce and highly important metal for industry and technology. In the present study, the cyanobacterium Arthrospira platensis (Spirulina) was used to remove rhenium and related elements …Web
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Technological flowsheets of rhenium recovery from various by-products of copper concentrate processing are proposed. It is shown that dusts of oxidizing agglomerating roasting of lead charge are a real source for rhenium recovery in lead industry. The 91% of rhenium, 85.2% of cadmium, 92.3% of zinc and 90.7% of.Web
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Technology and base metals cover a wide range of the periodic table of the elements. ... Rhenium recovery, as perrhenate ion (ReO 4-), is well over 99% and rhenium purity vs. other metals is 99.99+%. Rhenium separation is from a <1 g/L feed solution and the perrhenate ion eluate is a >10 g/L rhenium concentrated solution.Web
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DOI: 10.1016/J.SEPPUR.2017.09.021 Corpus ID: 104125676; Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP @article{Cheema2018SelectiveRO, title={Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP}, author={Humma …Web
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The using of hydrometallurgical and electrochemical technologies... | Rhenium, Recovery and Alloys | ResearchGate, the professional network for scientists. Figure 1 - available via license ...Web
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The improvement of rhenium recovery technology from W-Re alloys Article Full-text available Nov 2018 Olga G. Kuznetsova A. M. Levin Mikhail Sevostyanov Artem Oolegovych Bol'shikh View Show...Web
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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 ...Web
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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 …Web
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The electrochemical technology including the electrowinning and electrodialysis is used for production of perrhenate acid from perrhenate salts [2], [20], the production of metal from ammonium perrhenate solutions. ... Rhenium recovery is predicted to be a process with a great potential because over 80% of rhenium can be …Web
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Instead, the rhenium is associated with either molybdenum or copper (of up to 0.2% in content) as a by-product in metallurgical industry. This makes the separation of rhenium from the major ...Web
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Selective dissolution of a tungsten (85 wt.%)–rhenium (15 wt.%) alloy with rhenium in hydrochloric acid at the temperature of 298 K and anodic polarization modes was carried out to develop a porous …Web
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Not much capital has been invested in developing rhenium recovery technologies thus far because they have been deemed as highly expensive with reference to the installation costs of the currently used technologies. However, from a methodological viewpoint, the spent resins saturated with Re ions can be quickly processed, and …Web
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Rhenium (Re) is the rarest metallic element. Re recovery from leaching solution of uranium ore can not only expand the Re resource, but also improve the mining value of uranium ore.Web
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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 ...Web
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It is considered, that the fundamentals of an improved technology of rhenium recovery in the form of perrhenic acid from binary W-Re alloys. It is shown the desirability of avoiding the...Web
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The total efficiency of rhenium recovery based on 900 ppm rhenium content of concentrate and 1.42 g NH 4 ReO 4 produced from 1600 g molybdenite concentrate is about 70%. Download : Download full-size image; ... AI training, and similar technologies. For all open access content, the Creative Commons licensing terms apply. ...Web
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Rhenium is a rare-earth metal that is widely used in heat-resistant superalloys, platinum-rhenium catalysts, and prospective structural materials for rocket and space technology [1] [2][3][4][5][6 ...Web
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Rhenium is extracted from roasting fume and dust, leaching residue, and aqueous solution to produce a rhenium bearing solution. Subsequently, rhenium rich …Web
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A selective-and-advanced scheme of rhenium recovery from pregnant uranium-bearing sulfate (sulfuric acid) solutions of the Dobrovolnoye deposit ISL (Russia) using mobile installations was proposed.Web
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Therefore, developing efficient Re recovery technology is significant for its adequate application and the national safety. Adsorption, as a green and efficient technique, shows great potential for Re recovery from low or ultra-low concentration solutions. ... Selective recovery of Rhenium from industrial leach solutions by synergistic solvent ...Web
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A literature review on the production processes of rhenium by pyrometallurgical (roasting, smelting, distillation) and hydrometallurgical (leaching, …Web
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The article presents the results of oxidative leaching of lead sludge from copper production in order to extract rhenium into solution. The optimum regimes for product leaching man-made product in the presence of sodium peroxocarbonate Na2CO3·1.5H2O2 has been established: Experimental work was carried out under the …Web
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The paper deals with the study of rhenium recovery by AMR anionite from model high-acidic sulfuric solution as well as its desorption by ammonia solution in column experiments. ... In order to meet the increasing demand for elements, a number of technologies are being developed to recover elements already present in … Expand. 3. …Web
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Technological flowsheets of rhenium recovery from various by-products of copper concentrate processing are proposed. It is shown that dusts of oxidizing …Web
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Rhenium (Re) is a kind of rare metal with the second highest melting point of 3180 °C in periodic table. Owing to its excellent physicochemical properties, rhenium plays an irreplaceable role in the fields of high-temperature alloys and hydrogenation catalysts [1,2,3,4,5].Since a low amount of independent rhenium ore deposits exists, most …Web
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This work demonstrated the practical application of EB-radiation technology in the synthesis of PIL gel, which is a promising adsorbent for Re(VII) and U(VI) recovery . ... (2020) Recovery of rhenium(VII) from synthetic leaching solutions of uranium ore using ionic liquid modified cellulose microsphere adsorbents. Hydrometallurgy 197:105457 ...Web
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Ion exchange recovery of rhenium from aqueous solutions was studied with emphasis on modeling of phase equilibrium and mass transport. Weak anion exchangers were used and rhenium uptake was studied in nitrate, chloride and sulfate matrices. ... The challenge towards modern technologies has been enquiring and culminating in the …Web
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This paper presents a review of both primary and secondary processing technologies for the recovery of rhenium. Historical rhenium metal power price from 1952-2012 (year 2012: Metal Pages 2012 ...Web
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Rhenium recovery into. ammonium perrhenate was 92.5%. Involving into the production of rhenium solid by-products of. increase in ammonium perrhenate production in Kazakhstan for 22%. from existing ...Web
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It is considered, that the fundamentals of an improved technology of rhenium recovery in the form of perrhenic acid from binary W-Re alloys. It is shown the …Web
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Developing the recovery technology of rhenium under the background of high molybdenum is of great significance to the recovery of rhenium resources in the leaching solution of molybdenum ...Web
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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 …Web
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Hua R (2017) Study on recovery technology and economic evaluation of associated rhenium resources in in-situ leaching of sandstone type uranium ore. BeijingAtomic Energy Press. Hua R, Zhang Y, Liu F, Li Y, Lee CP, Dong Z (2020) Study of the ability of 2-AMPR resin to separate Re(VII) from U(VI) in acidic aqueous solutions.Web
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The selective extraction of rhenium from the leach liquor of molybdenite roasting flue-dust and its subsequent stripping were investigated using the solvent extraction technique. In this study, tri-butyl phosphate (TBP) as organic extractant in kerosene and metals bearing solution (in mg/L: 6042 Mo, 208 Re, 534 Cu, 1982 Fe, 32 Mg, and 19 Pb) …Web
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Review of technologies for rhenium recovery from mineral raw materials in Kazakhstan. Hydrometallurgy, 109(1–2): 1–8. Article CAS Google Scholar ... Masud S, Muhsan M A, Mahmood I, Lee J C (2018). Selective recovery of rhenium from molybdenite flue-dust leach liquor using solvent extraction with TBP. Separation and Purification …Web
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The degree of extraction of rhenium in the target products is 80–99.5%. The purpose of this article is to study the process of oxidative leaching of lead sludge from copper production in order to effectively extract rhenium into the solution. Lead sludge contains 600–1200 g/t of rhenium and is considered to be an additional source of the ...Web
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Rhenium metal powder is a material of industrial importance. Several industrial and laboratory methods have been developed for the preparation of ultrafine Re metal powder and nanoparticles. The present study provides a better understanding of the characteristic and formation of Re metal powder from the decomposition of (NH 4) 2 ReX …Web
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