Green and efficient separation of iron and phosphorus from …
The separation of iron and phosphorus was achieved through magnetic separation. In the energy spectrum results at points 6–9 in Fig. 7, when the molar ratio of C/O was 0.7, phosphorus was present in the fayalite, apatite, and metallic iron particles.
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Mineral separation laboratory | Department of Earth …
Three different types of heavy liquids and a magnetic separator (Frantz) can be found in the mineral separation room. This room is mostly used for separating heavy minerals - like zircon, monazite and apatite - from lighter minerals. Zircon and monazite are important minerals for U/Pb dating with the help of laser ablation and a mass spectrometer.
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A Review of Rare-Earth Elements Extraction with Emphasis …
The various physical separation methods (i.e., gravity separation, flotation, magnetic separation, and electrostatic separations) were able to separate REE minerals from gangue primarily based on differences in distinct physical and chemical properties, but at lower yields except for flotation which consistently proved effective to separate REE ...
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Physical separation of iron ore: magnetic separation
This chapter introduces the principle of how low-grade iron ores are upgraded to high quality iron ore concentrates by magnetic separation. Magnetite is the most magnetic …
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Characterization and Pre-concentration of Scandium in …
From the results of these experiments, a beneficiation process was developed and validated based on low-intensity magnetic separation for iron recovery and high-intensity magnetic separation for scandium enrichment. ... bauxite and apatite.1,2,3 Due to the highly dispersed distribution and scarcity of independent minerals, ...
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Selective binding and magnetic separation of histidine …
DOI: 10.1016/j.jinorgbio.2015.12.017 Corpus ID: 1147659; Selective binding and magnetic separation of histidine-tagged proteins using Fe3O4/Cu-apatite nanoparticles. @article{Li2016SelectiveBA, title={Selective binding and magnetic separation of histidine-tagged proteins using Fe3O4/Cu-apatite nanoparticles.}, author={Ping Li and Liangliang Li and …
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Magmatic origin of giant 'Kiruna-type' apatite-iron …
The apatite-iron-oxide deposits of the GMD and its northern continuation are classified to be of 'Kiruna-type', whereas thousands of smaller, but still significant, iron-oxide deposits of ...
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Mineral chemistry of magnetite from magnetite-apatite …
Kiruna geology and magnetite-apatite ores. There are over 40 known magnetite-apatite deposits located in the Norrbotten region, with Kiirunavaara being the largest estimated at nearly 2 Gt before extraction of high-grade iron ore averaging 30–70% Fe (e.g., Cliff et al. 1990; Hallberg et al. 2012; Martinsson et al. 2016; Westhues et al. 2016).The Kiirunavaara …
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A new iron recovery and dephosphorization approach from …
Deep dephosphorization of high‑phosphorus oolitic iron ore (HPOIO) is extremely difficult because of its refractory characteristics. A new approach for simultaneous iron recovery and dephosphorization from HPOIO by oxidation roasting–gas-based reduction (ORGR) and magnetic separation process was developed.The underlying mechanism was investigated …
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Enrichment of Apatite -Bearing Iron Ore by Magnetic …
magnetic separator, and apatite can be enriched from the non-magnetic p roduct by flotation. For this purpose, the raw ore was ground below 106 m size and then subjected to magnetic separation (with two cleaner and one scavenger), and following flotati on (with three cleaner and one scavenger).
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Selective binding, magnetic separation and purification of …
In previous studies, we synthesized the magnetic core-shell structured Fe 3 O 4 /PMG/IDA-Ni 2+ nanoparticles. The Ni 2+ on the surface of nanoparticles provides abundant docking sites for histidine, and the composite nanoparticles showed potential applications in the separation and purification of histidine-tagged (His-tagged) proteins. Meanwhile, the presence of the …
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Separating Minerals by Electromagnetic
Nonmagnetic dust has a tendency to adhere to magnetic concentrate, which may be a source of loss, notably in the separation of magnetite and apatite. The dust may be removed by an air blast, or if the trouble be aggravated, resort may be had to wet separation. ... Principles of Magnetic Separation and Preparation of the Ore for Treatment.
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Separation of Ilmenite from Vanadium Titanomagnetite by …
Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of titanium resources. Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation technologies. In particular, the …
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Green and efficient separation of iron and phosphorus from …
To provide a new method for the dephosphorization of high-phosphorus oolitic iron ore (HPOIO) by reduction roasting, the feasibility of the high-efficiency separation of iron and phosphorus by reduction roasting and magnetic separation process (RRMSP) without a dephosphorization agent was studied. The results showed that the full separation of iron and …
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Magnetic effect studies of rare earth-containing apatites
Magnetic behavior of apatite-type compounds is discussed in view of their bond lengths. Introduction Rare earth ions, together with the alkaline earth and lead ions, are known as apatite- building cations. They were investigated in different apatite systems in connection with the use of rare earth-substituted apatites as laser materials and in ...
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Surface Chemistry and Flotation Behaviors of Monazite–Apatite…
Monazite is further separated from other heavy minerals by a series of magnetic and electrostatic separation processes. However, these physical methods of separation become less efficient when the size of the liberated particle gets smaller. In the latter case, efficient separation can be achieved by flotation.
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Enrichment of Apatite -Bearing Iron Ore by Magnetic …
Magnetic separation: The magnetic separation experiments were performed using a drum type wet low-intensity magnetic separator. Drum rotation speed was selected as 25 rpm, pulp density in the mixing tank was adjusted to 10% of solids by weight. In the first magnetic separation circuit, a rougher magnetic and non-magnetic product were collected.
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Separation of Monazite from Placer Deposit by Magnetic Separation …
Using a magnetic separation result, the beneficiation process was conducted with additional gravity separation for zircon to produce a valuable mineral concentrate. The process resulted in three kinds of mineral concentrates (ilmenite, REE-bearing mineral, and zircon). The content of ilmenite increased from 32.5% to 90.9%, and the total rare ...
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Apatite: Its uses as a mineral and gemstone
Apatite is best known for its use as an index mineral with a hardness of 5 in the Mohs Hardness Scale. It is usually green in color, but can be yellow, brown, blue, purple, pink, or colorless. These colors are often so vivid that apatite has …
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Enrichment of Apatite -Bearing Iron Ore by Magnetic …
In this study, enrichment possibility of apatite-bearing iron ore sample was investigated to obtain iron and phosphate concentrate, separately. It was determined that the raw ore contains …
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Effect of calcium compounds on direct reduction and
7 and apatite) was studied by using the technique of direct reduction-grinding-magnetic separation. The mechanism of calcium compounds to reduce phosphorus was investigated from ... as magnetic separation and flotation [6, 7], owing to its complex properties, including a low iron grade, complex mineral structure, and high phosphorus content [8 ...
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Comprehensive Utilization of Iron and Phosphorus from …
An innovative process of coal-based reduction followed by magnetic separation and dephosphorization was developed to simultaneously recover iron and phosphorus from one typical high-phosphorus refractory iron ore. The experimental results showed that the iron minerals in iron ore were reduced to metallic iron during the coal-based reduction and the …
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Iron recovery and dephosphorization behaviors from …
roasting–magnetic separation, it is a method to reduce weak magnetic iron minerals (Fe 2O 3) to strong magnetic magnetite (Fe 3O 4) and magnetic hematite (Y-Fe 2O 3) and then use low magnetic separation to separate iron minerals and gangue minerals. By analyzing the reduction mecha-nism of iron oxides, Zhang et al. [15] conducted magne-
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Iron recovery and dephosphorization behaviors from high …
Larger iron particles facilitate their separation in magnetic separation. The process of reducing phosphate-containing minerals (specifically apatite in this study) and the …
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Fission-Track Analysis: Field Collection, Sample Preparation …
Fission-track (FT) analysis for geological applications involves a range of practical considerations, which are reviewed here. These include field sampling, the separation of the most commonly used minerals (apatite, zircon and titanite), the preparation of these minerals for analysis (including for double or triple-dating of the same grains) and measurement of the …
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Elements from Mongolian Apatite-Based Ore
After magnetic separation, basic leaching tests were conducted to investigate the ... Intuitively, it is possible to obtain REE concentrates by selective separation of REE-bearing apatite from the ...
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Apatite U-Pb Dating and Composition Constraints …
This study demonstrates that a combination of apatite composition and U-Pb ages can be used to constrain the magmatic–hydrothermal evolution of granite and pegmatite-type Nb-Ta deposits. Keywords: apatite U-Pb age; …
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High gradient magnetic separators Continuous HGMS
• Apatite upgrading • Sulphide ore recovery and separation The success of any magnetic separation process is governed by the property of the material to be collected and the structure of the separator to carry out the process. This can be expressed in the relationship between on one side the competing forces and the magnetic force on the other.
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A new iron recovery and dephosphorization approach
The effect of CaCO3, Na2CO3, and CaF2 on the reduction roasting and magnetic separation of high-phosphorus iron ore containing phosphorus in the form of Fe3PO7 and apatite was investigated. The … Expand
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Magnetic effect studies of rare earth-containing apatites
Magnetic susceptibility measurements of phosphate and silicate apatites of the A10−2xLnxMx (PO 4) 6Y2 ( A = Sr,Pb; Y = F, Cl; x = 1,2) and Sr 2Ln8 (SiO 4) 6 O 2 types with …
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