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magnetic separation of ions:

Magnetic separation of rare-earth ions: Transport ...

2021-2-11 · Magnetic separation of rare-earth ions: Transport processes and pattern formation Zhe Lei, Barbara Fritzsche, and Kerstin Eckert Phys. Rev. Fluids 6, L021901 – Published 11 February 2021

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Magnetic Separation of Metal Ions | Request PDF

Request PDF | Magnetic Separation of Metal Ions | The magnetic separation was investigated for Co2+ (9500 × 10-6 cm3 mol-1) and Fe3+ (14600 × 10-6 cm3 mol-1) ions and for Cr3+ (6200 × 10-6 cm3 ...

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Magnetic separation of Dy(III) ions from homogeneous ...

2014-12-8 · The possibility to enrich paramagnetic dysprosium (III) ions in a magnetic field gradient is proved by means of interferometry, which may open the route for a magnetic separation of rare earth ions from aqueous solutions. The separation dynamics are studied for three different concentrations of DyCl {sub 3} and compared with those found ...

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(PDF) Magnetic Separation of Paramagnetic Ions

The possibility to enrich paramagnetic dysprosium(III) ions in a magnetic field gradient is proved by means of interferometry, which may open the route for a magnetic

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Magnetic Separation of Paramagnetic Ions From Initially ...

2014-12-2 · Magnetic Separation of Paramagnetic Ions From Initially Homogeneous Solutions Abstract: The concentration change in an initially homogeneous paramagnetic solution is studied interferometrically upon applying sufficiently strong inhomogeneous magnetic fields. For this purpose, five different magnetic field configurations are analyzed.

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(PDF) Magnetic Separation of Paramagnetic Ions From ...

A further relevant quantity, included in Table I, is the densification coefficient α = 1/ρ(dρ/dC) [12] because as the separation of paramagnetic ions was shown to be limited by gravity [7]. III. RESULTSIn [7], the magnetic field configuration, which is shown in Fig. 1 was employed; a setup which we refer to as reference configuration.

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Magnetic separation of Dy(III) ions from homogeneous ...

2014-12-1 · The possibility to enrich paramagnetic dysprosium(III) ions in a magnetic field gradient is proved by means of interferometry, which may open the route for a magnetic separation of rare earth ions from aqueous solutions. The separation dynamics are studied for three different concentrations of DyCl 3 and compared with those found recently in a sulphate solution of the 3d ion Mn(II).

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Stability criterion for the magnetic separation of rare ...

2020-1-17 · The stability criterion for the magnetic separation of rare-earth ions is studied, taking dysprosium Dy(iii) ions as an example. Emphasis is placed on quantifying the factors that limit the desired high enrichment. During magnetic separation, a layer enriched in Dy(iii) ions is generated via the surface evaporation of an aqueous solution which is levitated by the Kelvin force.

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Utilization of magnetic hydrogels in the separation of ...

2010-9-30 · In situ magnetic hydrogel was prepared according to literature , .Briefly, known amount of dried and cleaned hydrogel was placed in nitrogen gas purged 0.25 M Fe(II) and 0.5 M Fe(III) mixture for 12 h (total volume 250 mL).At the end of these metal ions loading procedure, hydrogels were kept in deionized water for a day to remove the physically absorbed or unbound metal ions (Fig. 1(d)).

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(PDF) Magnetic Separation of Paramagnetic Ions

The possibility to enrich paramagnetic dysprosium(III) ions in a magnetic field gradient is proved by means of interferometry, which may open the route for a magnetic separation of rare earth ions ...

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Method and apparatus for magnetic separation of ions -

2007-8-22 · The fact that the ions have opposing charges and will be moving in the same direction through the same magnetic field 125 provides the opposing forces necessary to achieve separation of the ions. Once a slight separation is achieved, the hydrogen ions combine into the stable H 2 molecule, and the oxygen ions combine into the stable O 2 molecule ...

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Magnetic separation of heavy metal ions and evaluation ...

2013-10-9 · A new approach was developed for the magnetic separation of copper(II) ions with easy operation and high efficiency. p-Mercaptobenzoic acid served as the modified tag of [email protected] nanoparticles both for the chelation ligand and Raman reporter. Through the chelation between the copper(II) ions and carboxyl groups on the gold shell, the [email protected] ...

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Magnetic separation of rare-earth ions: Transport ...

The results are experimentally validated using interferometry and microscopic particle image velocimetry. Based on the excellent agreement of numerical and experimental results, the underlying mechanism of ions' magnetic separation can be explained, which paves the way for a prospective application in rare-earth beneficiation.

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Magnetic separation of Dy(III) ions from homogeneous ...

The possibility to enrich paramagnetic dysprosium(III) ions in a magnetic field gradient is proved by means of interferometry, which may open the route for a magnetic separation of rare earth ions from aqueous solutions. The separation dynamics are studied for three different concentrations of DyCl 3 and compared with those found recently in a sulphate solution of the 3d ion Mn(II).

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Magnetic Separation of Cesium Ion Using Prussian Blue ...

2018-2-8 · Prussian-blue-modified magnetite (PB-Fe 3 O 4) was prepared by a simple method.The Cs + sorption ability of PB-Fe 3 O 4 was evaluated by batch magnetic separation. As a result, the maximum sorption amount of Cs + with PB-Fe 3 O 4 was 16.2 mg g −1, and the sorption ability was not greatly changed in the presence of high concentration of NaCl.The recovery of PB-Fe 3 O 4 from water by

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MODULE 5.0: ELECTROMAGNETIC SEPARATION

2012-7-19 · Note: The diameter of an ion's trajectory depends on the strength 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% ...

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Evaporation-Assisted Magnetic Separation of Rare-Earth ...

2019-5-25 · This work aims to answer the question of why an enrichment of paramagnetic ions can be observed in a magnetic field gradient despite the presence of a counteracting Brownian motion. For that purpose, we study a rare-earth chloride (DyCl3) solution in which weak evaporation is adjusted by means of small differences in the vapor pressure. The temporal evolution of the refractive index field of ...

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Development of Numerical Analysis Method for Magnetic ...

2010-3-4 · The magnetic chromatography is a very useful system for an ion and/or fine magnetic particle separation due to its strong magnetic field gradients in a very small flow channel. We have developed the magnetic chromatography system to separate the fine particles and ions. However, its numerical simulation is difficult, since the scale of the ions or fine particles in fluid is much different from ...

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MAGNETIC SEPARATION N. Chakravorty

2012-1-20 · magnetic separators and the principal ferromagnetic mineral separated is magnetite (Fe304),although hematite (re203) and siderite (FeCO3) can be roasted to produce magnetite and hence give good separation. The removal of "tramp" iron from ores can also be regarded as a form of low-intensity magnetic separation.

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Magnetic separation of rare-earth ions: Transport ...

The results are experimentally validated using interferometry and microscopic particle image velocimetry. Based on the excellent agreement of numerical and experimental results, the underlying mechanism of ions' magnetic separation can be explained, which paves the way for a prospective application in rare-earth beneficiation.

Read More
Magnetic separation of heavy metal ions and evaluation ...

2013-10-9 · A new approach was developed for the magnetic separation of copper(II) ions with easy operation and high efficiency. p-Mercaptobenzoic acid served as the modified tag of [email protected] nanoparticles both for the chelation ligand and Raman reporter. Through the chelation between the copper(II) ions and carboxyl groups on the gold shell, the [email protected] ...

Read More
MODULE 5.0: ELECTROMAGNETIC SEPARATION

2012-7-19 · Note: The diameter of an ion's trajectory depends on the strength 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% ...

Read More
Evaporation-Assisted Magnetic Separation of Rare-Earth ...

2019-5-25 · This work aims to answer the question of why an enrichment of paramagnetic ions can be observed in a magnetic field gradient despite the presence of a counteracting Brownian motion. For that purpose, we study a rare-earth chloride (DyCl3) solution in which weak evaporation is adjusted by means of small differences in the vapor pressure. The temporal evolution of the refractive index field of ...

Read More
Development of Numerical Analysis Method for Magnetic ...

2010-3-4 · The magnetic chromatography is a very useful system for an ion and/or fine magnetic particle separation due to its strong magnetic field gradients in a very small flow channel. We have developed the magnetic chromatography system to separate the fine particles and ions. However, its numerical simulation is difficult, since the scale of the ions or fine particles in fluid is much different from ...

Read More
Magnetic Separation of Impurities from Hydrometallurgy ...

2020-9-30 · The removal of iron ion from leaching solution is critical for the recovery of value metals, with the method of choice commonly being crystallization (precipitation). This paper summarized the new improvements in iron removal by precipitation methods in recent years and proposed a novel process, magnetic seeding and separation. The new process can promote iron precipitate aggregation and ...

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Magnetic separation: its application in mining,

2017-7-21 · The use of strong magnetic field gradients and high magnetic fields generated by permanent magnets or superconducting coils has found applications in many fields such as mining, solid state chemistry, biochemistry and medical research.

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Rapid and selective separation of molybdenum ions using

2016-10-10 · In this work, we have developed a convenient method for the rapid and selective separation of Mo(VI) from aqueous solution by using a novel magnetic Mo(VI) ion imprinted polymer (Mo(VI)-MIIP) as the sorbent.This sorbent was synthesized using methacrylic acid (MAA) as the functional monomer, the Mo 6+ anion as a template, ethylene glycol dimethacrylate (EGDMA) as a cross-linker, and Fe 3 O

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MAGNETIC SEPARATION N. Chakravorty

2012-1-20 · magnetic separators and the principal ferromagnetic mineral separated is magnetite (Fe304),although hematite (re203) and siderite (FeCO3) can be roasted to produce magnetite and hence give good separation. The removal of "tramp" iron from ores can also be regarded as a form of low-intensity magnetic separation.

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Chemical separation of Li ions by primordial magnetic

2020-6-11 · Chemical separation of Li+ ions by primordial magnetic eld before the Galaxy formation Motohiko Kusakabe1 and Masahiro Kawasaki2;3 1 School of Physics, and International Research Center for Big-Bang Cosmology and Element Genesis, Beihang University, 37, Xueyuan Road, Haidian-qu, Beijing 100083, People’s Republic of China, e-mail: kusakabe ...

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