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The process flow chart in Fig. 10 summarises the separation and recovery of the rhenium value from CMSX-4 superalloy scraps, and Table 2 lists the solution concentration (mg L −1) of each component metal at all stages of the separation process. The residue filtered off the initial leach solution mainly contains tungsten and hafnium.
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Recycling rhenium from spent alloys and catalysts is a multi-step process combining pyrometallurgical and hydrometallurgical techniques, where its separation and the subsequent steps are similar ...
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Summarized the siutuation of the vanadium titanium magnetite tailings recycling in Chengde, TiO2 in ilmenite tailings grade almost more than 2%, caused by TiO2 resources waste, put forward by gravity separation, magnetic separation,and flotation combined process method for titanium iron ore tailings reelection, and put forward the technological process selection by reducing the grinding ...
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12%Separation in ferromagnetic liquid (FML) is recommended for separating gold from concentration products of placers. Magnetic liquid separation is based on the appearance in FML of a ponderomotive force of a nonuniform magnetic liquid additional to the gravity buoyancy force. A horizontal component of this force in the separation medium bulk participates in …
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Separation of Platinum Group Metals (PGM) from Liquid Media Technetium (particularly Tc 7+ ), ruthenium (particularly Ru 4+ ), rhodium (particularly Rh 4+ and Rh 3+ ), rhenium (particularly Re 7+ ), and iridium (particularly Ir 4+ and Ir 3+ ) can be ionically grouped with the Platinum Group Metals (PGM) because they form stable oxyanion complexes
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Over the past decade, metal nanoparticles (MNPs) have attracted extensive attention due to their unique physiochemical properties that make them highly applicable in various fields such as chemical sensing, energy storage, catalysis, medicine, and environmental engineering. Their physiochemical properties depend drastically on the MNP size and morphology, which are largely determined by their ...
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Magnetic adsorbents can be rapidly sepa- Rhenium is an uncommon metallic element, which is rated from the matrix by an external magnetic field and has extensively used in the petrochemical industry, aviation exhibited significant advantages in separation science [19]. medicine, metallurgy, etc. Molybdenum is a refractory Magnetic separation ...
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of two samples of non-magnetic tailings obtained by 60 min carbothermic roasting of red mud at 1300 C and the mixture of 84.6 wt.% of red mud and 15.4 wt.% Na 2SO4 at 1150 C, respectively, with subsequent magnetic separation of metallic iron. The influence of temperature, leaching duration,
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Highly enhanced selectivity for the separation of rhenium and molybdenum using amino-functionalized magnetic Cu-ferrites. Journal of Materials Science 2015, 50 (18), 5960-5969.
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Magnetic separation takes advantage of differences in the magnetic properties of minerals. Minerals fall into one of three magnetic properties: ferromagnetic, paramagnetic and diamagnetic. Ferromagnetic minerals are themselves magnetic (i.e., magnetite and pyrrhotite) and can be easily separated from other minerals with a magnet since they will ...
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There are many methods of separation (concentration) of minerals: 1) Gravity separation. There are more than 12 types of gravity separation of minerals. It is used for the extraction of gold, coal, cassiterite, wolframite, rare earth mineral, niobium, zirconium, uranium minerals, and others. Read more. 2) Magnetic separation. There are more than 14 types of magnetic separation of minerals.
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The main resonance line shows a significant anisotropy and one may find the three groups of lines with the f The mixed-valence rhenium (IV, V) complexes 1675 spectroscopic splitting parameters g 1 = 4.8, g2 = 2.6 and g 3 = 1.7. It is possible to ob- serve the presence of six superhyperfine structure lines (2I1 + 1 = 6, where I1 = 5/2) of good ...
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Here, we focus on the optical absorption response of a new member TMDs, rhenium disulphide (ReS 2) whose monolayer and bulk forms have the nearly identical band structures. The nonlinear saturable ...
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In this work, a novel di-2-ethylhexylamine modified magnetic chitosan (FCS-DIOA) was successfully synthesized and used to recovery Re(VII) in Mo–Re binary mixtures. The percentage content and the chemical structure of adsorbent were characterized by elemental analysis, gas sorption, magnetic properties, X-ray diffraction analysis, infrared spectroscopy, and Boehm titration, respectively.
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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 adsorbents.
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12%Magnetic adsorbents can be rapidly separated from the matrix by an external magnetic field and has exhibited significant advantages in separation science . Magnetic separation process is obviously much more convenient, economic, and efficient. However, there are fewer reports on the recovery of rhenium and molybdenum using magnetic sorbents.
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Separation and Purification Technology, 191: 116–121. CAS Article Google Scholar Chen B, Cao Y, Zhao H, Long F, Feng X, Li J, Pan X (2020a). A novel Fe 3+-stabilized magnetic polydopamine composite for enhanced selective adsorption and separation of Methylene blue from complex wastewater. Journal of Hazardous Materials, 392: 122263
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Magnetic separation was carried out using a Davis Tube Tester. The effect of pretreatments on the magnetization and magnetic separation were investigated. The results showed that the ore has similar magnetic property with goethite. The heating of the ore at 673 K did not improve significantly on its properties whether goethite changes to magnetite.
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A one-step radiolabeling procedure of highly magnetic particles with the therapeutic β-emitter rhenium-188 (188Re) has been developed. Magnetic targeted carriers (MTCs) are composites of metallic ...
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Magnetic Separation – Simulations in Process Engineering High-gradient magnetic fishing (HGMF) is a method for the downstream processing of biomolecules such as proteins. In the first step of this method magnetic particles are coated with a layer that contains specific ligands for a certain target molecule. The particles are then…
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Recovery of valuable materials from spent lithium ion batteries using electrostatic separation. A.V.M. Silveira, M.P. Santana, E.H. Tanabe, D.A. Bertuol December 10, 2017. Pilot-scale plant study on solid-state metalized reduction–magnetic separation for magnesium-rich nickel oxide ores. Baozhong Ma, Weijiao Yang and 4 more December 10, 2017
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The magnetic separation is a physical separation technique which is based mixtures or using the magnetic properties of the material, such as its sensitivity to the attraction or repulsion magnets. It is also known as magnetization, because the objects that can be separated by this technique are magnetized by the magnetic field of the magnets.
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Magnetic susceptibility measurements have been made on ReO 3 as a function of temperature between 77 and 300 K. The results of the measurements show that ReO 3 has a temperature independent paramagnetism of 0.086 × 10 −6 emu/g. A separation of the individual contributions to the measured susceptibility is made and the resultant values are compared with data …
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Precise Re concentrations are commonly analysed by ID-NTIMS. The use of multicollector ICP-MS may alternatively be more time effective for similar precisions. One major drawback with ICP-MS is the lack of control concerning instrumental mass bias, which tends to be time dependant for a given machine setting. The mass discrimination in the ICP-MS is a sum of numerous phenomena, mainly the space ...
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Copper ore divides into ore sulfide,ore oxide and mixing ore according to its oxide rate . The main process for copper ore is flotation, for refractory mixed copper ore and refractory oxide ore, normally use hydrometallurgy process .It is a high technological enterprise that integrated research, manufacture, sales and service . The company has multiple subsidiaries such as Mineral ...
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Multiple discriminant function analysis of carbon-13 nuclear magnetic resonance spectra. Functional group identification by pattern recognition. ... The determination of rhenium in molybdenite concentrates by instrumental neutron activation analysis with californium-252 as neutron source. ... Separation of platinum and palladium from base ...
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The proposed method is the separation of isotopes of rhenium in an electromagnetic separator using an ion source in comparison with existing methods have proven to be very effective in obtaining a feasibility result. The practical use of the proposed technical solution allows to increase the enrichment of the partial isotopes of rhenium.
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Highly enhanced selectivity for the separation of rhenium and molybdenum using amino-functionalized magnetic Cu-ferrites J. Mater. Sci., 50 ( 2015 ), pp. 5960 - …
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2) Magnetic separation. There are more than 14 types of magnetic separation of minerals. It is used for the extraction of magnetite, hematite, ilmenite, rare earth mineral, and other.
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Separation of Rhenium from Lead-Rich Molybdenite Concentrate via Hydrochloric Acid Leaching Followed by Oxidative Roasting. Metals, 2016, 6(11), 282. (SCI/EI) Mudan Liu, Zhixiong You*, Zhiwei Peng, Xiang Li, Guanghui Li*. Enrichment of Rare Earth and Niobium from a REE-Nb-Fe Associated Ore via Reductive Roasting Followed by Magnetic ...
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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 ...
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Magnetotactic response of bacterial cells to the magnetic field showed that strain MTB-KTN90 well has grown in culture medium under microaerobic conditions and has produced magnetic nanoparticles. The magnetosomes are easily isolated and purified from the broken magnetotactic bacterial cells by this method and magnetic separation (Figs. 1 and 2).
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