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Paramagnetic separation of uranium plutonium ...

Download Citation Paramagnetic separation of uranium plutonium: Application to decontamination projects The technical basis, limitations and the potential applications of paramagnetic ...

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High Gradient Magnetic Separation of Uranium Ores

2018-11-6  High Gradient Magnetic Separation of Uranium Ores. Continuing interest in processes that will effect separations in the fine particle size range has prompted intense interest in the use of high gradient magnetic separation (HGMS) for beneficiation of uranium ores. Some of the uranium minerals are paramagnetic

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Magnetic Separation of Uranium from Waste Materials

Abstract. 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 magnetic separation tests. Representatives of 21 DOE sites were ...

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Wet high intensity magnetic separation of some uranium ...

2011-12-14  Van Dieed )(5) Most of the primary uranium minerals are known to be paramagnetic in nature. U-minerals occur very rarely as independent minerals and are often found to be associated with the magnetic or paramagnetic gangue mine-rals in a variety of ores. Such ores are consi-dered suitable for

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Magnetic separation of uranium from waste materials ...

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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Magnetic separation of uranium from waste materialsINIS

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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Process for the separation of metals from aqueous media ...

A method according to claim 1 in which said paramagnetic metal is uranium. 7. A method for the separation of uranium from an aqueous medium containing ions of uranium which comprises contacting said medium with bacterial having phosphatase activity in the presence of a glycerophosphate which is converted by said bacteria into a phosphate which ...

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Magnetic separation for environmental remediation ...

1994-11-1  Magnetic Separation is a physical separation process that segregates materials in a mixture on the basis of magnetic susceptibility. Most of the actinides and their compounds and fission products are paramagnetic, and most host materials such as water, graphite, soil, and sand are diamagnetic.

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Uranium its measurement - UCIL

2009-12-26  Uranium metal is shiny, silvery, ductile and slightly paramagnetic. Chemically, metallic uranium is highly reactive. It dissolves in acids upon moderate heating and reacts with ... separation and determination of uranium. But for the purpose of field measurement, the most useful property of uranium is its radioactivity.

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Uranium Production – Federation Of American Scientists

2021-9-13  Uranium is a heavy, silvery-white metal which is pyrophoric when finely divided. It is a little softer than steel, and is attacked by cold water in a finely divided state. It is malleable, ductile, and slightly paramagnetic. In air, the metal becomes coated with a layer of oxide.

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Magnetic Separation of Uranium from Waste Materials

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 magnetic separation tests. Representatives of 21 DOE sites were contacted, and ...

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wsra - IAEA

2005-5-7  paramagnetic separations pointed to a potential waste minimization process [8]. Bench-scale tests of pretreatment by magnetic separation of process wastes containing magnesium fluoride contaminated with uranium have shown reduction in the level of contamination comparable with that obtained from the

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A Redox-Innocent Uranium(IV)-Quinoid Metal-Organic

2021-1-30  A Redox-Innocent Uranium(IV)-Quinoid Metal-Organic Framework Vanja E. Refn, Mariusz Kubus, Susanne Mossin, RenéWugt Larsen, and Kasper S. Pedersen* ... to exhibit interesting properties relevant for gas separation and storage, ... sion is supported by X-band electron paramagnetic resonance spectroscopy where no resonances could be observed between

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Uranium Production – Federation Of American Scientists

2021-9-13  Uranium is a heavy, silvery-white metal which is pyrophoric when finely divided. It is a little softer than steel, and is attacked by cold water in a finely divided state. It is malleable, ductile, and slightly paramagnetic. In air, the metal becomes coated

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Uranium its measurement - UCIL

2009-12-26  Uranium metal is shiny, silvery, ductile and slightly paramagnetic. Chemically, metallic uranium is highly reactive. It dissolves in acids upon moderate heating and reacts with ... separation and determination of uranium. But for the purpose of field measurement, the most useful property of uranium is its radioactivity.

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Superconductivity and Ferromagnetic Quantum Criticality

2014-5-9  The uranium atom forms the quasi-kagomé lattice, indicating the possible magnetic frustration. ... The possibility of phase separation between the paramagnetic state and the ferromagnetic state at \(P=0\) cannot be excluded. The high quality single crystals are inevitably required for the study of ferromagnetic superconductivity.

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Strongly coupled binuclear uranium–oxo complexes from ...

2012-2-21  The most common motif in uranium chemistry is the d0f0 uranyl ion [UO2]2+ in which the oxo groups are rigorously linear and inert. Alternative geometries, such as the cis-uranyl, have been ...

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Facile Dinitrogen and Dioxygen Cleavage by a

2021-6-23  U1U1’ separation in complex 3 (3.775(3) c)islonger than the sum of the covalent single bond radii for U(3.40 c), which suggests that there is no significant U-U interaction. Notably,the long N5-N5’ distance (2.807(4) c)corresponds to the complete cleavage of N2 via asix-electron reduction. Themagnetic moment of complex 3 declines ...

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Determination of Uranium Concentration in Uranium Ore

Uranium is the famous element from the actinide series in the periodic table which has an atomic number of 92. it is silver color, ductile, flexible and slightly paramagnetic metal which has high density. Uranium is the material of vast technological importance

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Determination of Uranium Concentration in Uranium Ore ...

Keywords: Uranium ore, X-Ray Fluorescence spectroscopy, ICP-OES, Microwave acid digestion, internal addition Introduction Uranium is the famous element from the actinide series in the periodic table which has an atomic number of 92. it is silver color, ductile, flexible and slightly paramagnetic metal which has high density. Uranium

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A Redox-Innocent Uranium(IV)-Quinoid Metal-Organic

2021-1-30  A Redox-Innocent Uranium(IV)-Quinoid Metal-Organic Framework Vanja E. Refn, Mariusz Kubus, Susanne Mossin, RenéWugt Larsen, and Kasper S. Pedersen* ... to exhibit interesting properties relevant for gas separation and storage, ... sion is supported by X-band electron paramagnetic resonance spectroscopy where no resonances could be observed between

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Uranium its measurement - UCIL

2009-12-26  Uranium metal is shiny, silvery, ductile and slightly paramagnetic. Chemically, metallic uranium is highly reactive. It dissolves in acids upon moderate heating and reacts with ... separation and determination of uranium. But for the purpose of field measurement, the most useful property of uranium is its radioactivity.

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Evidence of native radiation-induced paramagnetic defects ...

2008-3-15  This study presents the first unequivocal identification of natural radiation-induced defects in illites. Middle Proterozoic illites related to unconformity-type uranium deposits of Canada and Australia were studied using electron paramagnetic resonance (EPR) spectroscopy at X- and Q-band frequencies. The saturation behaviour of EPR spectra as a function of power demonstrates that native ...

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Facile Dinitrogen and Dioxygen Cleavage by a

2021-6-23  U1U1’ separation in complex 3 (3.775(3) c)islonger than the sum of the covalent single bond radii for U(3.40 c), which suggests that there is no significant U-U interaction. Notably,the long N5-N5’ distance (2.807(4) c)corresponds to the complete cleavage of N2 via asix-electron reduction. Themagnetic moment of complex 3 declines ...

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Superconductivity in uranium ferromagnets - IOPscience

2017-5-5  Here, m is the magnetic moment per uranium atom at zero temperature, m = 1.4μ B at ambient pressure , and n = a −3 is the density of uranium atoms, which can be approximately taken to be the cube of the inverse nearest-neighbor uranium atom separation a = 3.85 Å . The mean-field magnetization and the jump in the specific heat are

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Uranium Production - Nuclear Weapons

2018-2-25  Uranium is a heavy, silvery-white metal which is pyrophoric when finely divided. It is a little softer than steel, and is attacked by cold water in a finely divided state. It is malleable, ductile ...

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Determination of Uranium Concentration in Uranium Ore ...

Keywords: Uranium ore, X-Ray Fluorescence spectroscopy, ICP-OES, Microwave acid digestion, internal addition Introduction Uranium is the famous element from the actinide series in the periodic table which has an atomic number of 92. it is silver color, ductile, flexible and slightly paramagnetic metal which has high density. Uranium

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Determination of Uranium Concentration in Uranium Ore

Uranium is the famous element from the actinide series in the periodic table which has an atomic number of 92. it is silver color, ductile, flexible and slightly paramagnetic metal which has high density. Uranium is the material of vast technological importance

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The role of uranium–arene bonding in H2O reduction ...

2017-12-11  Uranium coordination compounds are well known for the activation of small molecules 1,2,3,4,5,6,7,8 such as CO 2, CO, N 2 and H 2 O. The reaction pathways and elementary steps of uranium-mediated ...

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Beyond Charge Balance: Counter‐Cations in

Organically-soluble SECs have also been proposed for applications including stabilization of emulsions, 129 extraction and separation of uranium 130 and NMR paramagnetic relaxation reagents. 131

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