Magnetic Separation Uranium

of the magnetic field and the mass, electrical charge, and speed of the ion. Lighter ions are more easily deflected by the magnetic field and consequently have a smaller diameter trajectory. For the separation of U-235 and U-238, the diameter of the 235U+ ion beam is about 0.6% smaller than that of the 238U+ ion. In an electromagnetic isotope

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One-pot magnetic separation of uranium (U) in seawater and groundwater samples has been made possible by synthesizing phosphoramidate functionalized Ag coated citrate-Fe 3 O 4 nanoparticles (NPs). The magnetic saturation value of these functionalized NPs is 27.1 emu g −1.The synergistic extraction mechanism of U(VI) ion by the surface-modified phosphoramidate and citrate molecules make these

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Jul 24, 2011 Electromagnetic Isotope Separation Uranium Enrichment. ... that is located in a strong magnetic field. For the EMIS ion source, solid uranium tetrachloride (UCl 4 ) is electrically heated to

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For the recovery of uranium from spent nuclear fuel, selective sulfurization of uranium (UO 2) and rare-earth oxides R 2 O 3 (R=Nd, Eu) using sulfurizing reagents, such as H 2 S and CS 2 was examines followed by the magnetic separation of sulfurized compounds of rare-earths. The R 2 O 3 for Nd and Eu were selectively sulfurized by CS 2 at 500 C forming Nd 2 S 3 and EuS, respectively, while

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The present invention describes a process for removing uranium from a copper concentrate by magnetic separation (low and high field) aiming the reduction of the content of uranium in a copper concentrate to commercially acceptable levels

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Abstract A new process for the extraction of uranium from seawater was developed. In the process, uranium adsorption is effected using powdered magnetic adsorbents; the adsorbents are then separated from seawater using magnetic separation technology. This process is superior to a column method using a granulated hydrous titanium oxide adsorber bed in the following ways: (1) a higher

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May 10, 2017 POMNs showed superior aqueous dispersibility and could be readily recovered by magnetic separation. The uranium(VI) sorption of POMNs achieved equilibrium in 5 min with a capacity of 141.4 mg g −1 in a single-element solution of uranium at pH 8.0 and 298.15 K

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Uranium-235 makes up only about 0.72% of natural uranium, so the separation factor of any uranium enrichment process needs to be higher than 1250 to produce 90% uranium-235 from natural uranium. The Maud Committee had recommended that this be done by a process of gaseous diffusion , [8] but Oliphant had pioneered another technique in 1934

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Criteria were developed for the selection of candidate wastes for testing the magnetic separation of uranium or other paramagnetic materials or both. A survey of Department of Energy (DOE) hazardous wastes was conducted to determine good candidates for bench-scale

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OSTI.GOV Technical Report: Selection of a matrix for the recovery of uranium by wet high-intensity magnetic separation

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Synthesis of Surface Ion-Imprinted Magnetic Microspheres by Locating Polymerization for Rapid and Selective Separation of Uranium (VI) Jun Qian . a,b, Shuang Zhang . a,b, Yuan Zhou . a,b, Ping Dong . a,b, DaobenHua . a,b,c, * a . School for Radiological and Interdisciplinary Sciences (RAD–X), School of Radiation Medicine

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Uranium isotope separation by magnetic field gradient and visible light acting in a liquid medium. Borges, O.N. (Instituto de Engenharia Nuclear, Rio de Janeiro (Brazil)) Annual Progress Report of

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For the recovery of uranium from spent nuclear fuel, sulfide reprocessing process, which consists of voloxidation, selective sulfurization, and magnetic separation or selective dissolution steps, are proposed. In this paper selective sulfurization of rare-earth oxides in the presence of uranium oxides was studied by thermogravimetry and X-ray

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OSTI.GOV Conference: Magnetic separation of uranium from waste materials. Magnetic separation of uranium from waste materials. Full Record; Other Related Research

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Apr 01, 2014 The as-prepared magnetic CoFe 2 O 4 particles showed an excellent ability to remove uranium from aqueous solution with a maximum uranium(VI) sorption capacity of about 170.07 mg/g at 25 C. The sorption of uranium(VI) was fast, with sorption equilibration at 180 min

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