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Results and discussion In order to investigate the effect of particle size on the recovery of magnetite particles in a low intensity magnetic separator, different size fractions of magnetite, alone and mixed with the same size quartz particles at a 0.5–0.5 ratio were subjected to magnetic separation tests in a Davis tube tester.
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In recent decades, it has become one of the key separation technologies in the utilization of the ores that contain magnetic minerals, such as iron oxides, ilmenite, wolframite, and manganese, and in the removal of magnetic impurities form non-metallic ores such as kaolin, quartz, and feldspar.
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It is suitable for dry separation of weakly magnetic minerals, and has become the main magnetic separation equipment for dry iron removal from feldspar in recent years. Particle size lower limit of 0.12mm, good separation effect, low operation cost, and convenient operation. Permanent magnetic drum type high-intensity magnetic …
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This pilot-scale CHGMS separator has an average magnetic induction of 0.4 T in the separating cylinder and is a characteristic of high selectivity and recovery to magnetic particles.
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This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs (such as quartz, clay minerals, mica, ilmenite, rutile, anatase and magnetite) as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar flotation relates to …
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The concentrate was further upgraded by magnetic separation, leading to 54.0% available alumina, with an alumina/insoluble silica mass ratio of 12.6 at an overall available alumina recovery of 69. ...
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Four different iron minerals were selected for study, and five size fractions of each mineral were prepared. The magnetic properties of these minerals were measured. The effect of particle size ...
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Magnetic separation is used primarily to remove ferromagnetic gangue minerals as well as to separate individual paramagnetic rare earth minerals. ... K-feldspar, plagioclase, hematite, magnetite and zircon) were checked in order to simplify the analysis. Download : Download full-size image;
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The best results were achieved with a combination of high-intensity wet magnetic separation and flotation. A feldspar concentrate containing 16.28% Al2O3, 10.75% K2O,2.84% Na2O,69.97% SiO2 and 0. ...
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This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs (such as quartz, clay minerals, mica, ilmenite, rutile, anatase and magnetite) as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar flotation ...
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The downstream magnetic separator has a large processing capacity and is suitable for the rough separation and cleaning of the stronger magnetic materials with a coarser size. The counter-current magnetic separator is suitable for the coarse and sweeping operation of fine-grained and strong magnetic minerals, with high recovery but …
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The XRD patterns of magnetic separation concentrate show that the main mineral phases in concentrate are magnetite (Fe 3 O 4 ) and fluorite (CaF 2 ), which can be removed by grinding and reverse ...
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The physical and chemical properties of feldspar and quartz are highly similar, thus they cannot be easily separated effectively. In this work, the flotation separation of feldspar from quartz using sodium fluosilicate (Na 2 SiF 6; SF) as a selective depressant was investigated.Moreover, the influence mechanism of SF on the selective …
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The isodynamic magnetic separation helps in eliminating the ferromagnetic and paramagnetic minerals and as well as some feldspar (Porat, 2006). The number of grains of feldspar and quartz in a mount were counted under SEM and the feldspar percentage in the mounts were 12%, 21%, 28% and 3% for T-1, IS-19, IS-15 and IS-,3 …
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An important consequence of the relation, including that confirmed here for comparatively weakly magnetic (see Figs. 3 and 4) impurity particles in quartz sand, is the elucidation of the actual role (in the manifestation of the magnetic force acting on the magnetically active particles in magnetophoresis, specifically, magnetic separation) of ...
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magnetite ores, the initial candidates for flocculants were carboxymethyl starch (CMS), sodium humate, and common corn starch. The effects of flocculant types and amounts on concentrate indices ...
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In the separation of raw ore, Zhang Yanhua and Han Yuexin et al. used weak magnetics to enrich vanadium-titanium magnetite with strong magnetism, and then selected gravity separation, high gradient magnetic separation, electric separation, flotation or their combined processes to obtain titanium concentrate products according to the differences ...
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The contribution deals w ith the high gradien t magnetic separatio n of magnetite-bear ing feldspar sands from the Philippin es. The sands on the average contain 11.5-15 % of F e, 1.5-2.2 % of Ti ...
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The separation selectivity of matrix for magnetic particles may be described (Chen et al., 2015): (18) β m = β max 1 + R nm ⋅ F i / F c where, β m and β max are the grade and the theoretical maximum grade for magnetic component in magnetic product respectively, R nm is the mass ratio of non-magnetic to magnetic particles in the feed, F …
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Fig. 1 shows magnetic separation recoveries of the single pentlandite (5 g) and serpentine (5 g) as a function of NaOL concentration with the addition of 4% magnetite (0.2 g) as magnetic seeds under a magnetic field intensity of 200 kA m −1.At a natural pulp pH of around 7.0, the recovery of pentlandite increased rapidly with increasing NaOL …
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3.11.2.5 Magnetic Separation. Magnetic separation is a process where a contaminant is first attached onto a magnetic carrier material (e.g., magnetite), and subsequently, the contaminant-laden carrier is separated under a magnetic field. The simplest magnetic separator is a permanent magnet.
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Materials. Pure quartz (> 99% SiO 2) and magnetite (> 96% Fe 3 O 4) samples (Fig. 1) were obtained from VWR, Sweden.The samples were ground using a laboratory-scale ball mill to produce flotation feed
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The low-grade P-bearing V-Ti magnetite tailings sample was collected from a V-Ti magnetite dressing plant by magnetic separation and flotation in the Miyi area of China, and the P-bearing V-Ti magnetite …
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The ore used in this work originated from the Nechalacho Deposit (Avalon Rare Metals, Northwest Territories, Canada). Details regarding the operation of the various gravity and magnetic separations may be seen in Section 2 of Jordens et al. (2016).The flowsheet of gravity and magnetic separations employed in this work may be seen in …
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The combination of flotation and magnetic separation has been used to remove iron/titanium-bearing particles from feldspars [15], [16]. Burat et al. [15] found that flotation followed by dry magnetic separation was suitable to reduce the Fe 2 O 3 content of a nepheline syenite ore from 0.19 to 0.09%.
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DOI: 10.1134/s1062739123060157 Corpus ID: 268390187; The Use of Flotation and High-Intensity Magnetic Separation to Improve Feldspar Concentrate Quality @article{Ahmed2023TheUO, title={The Use of Flotation and High-Intensity Magnetic Separation to Improve Feldspar Concentrate Quality}, author={M. M. Ahmed and G. A. …
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It has been found that the vibration significantly helped to eliminate the particle aggregation and thus to improve the separation. At the optimized parameter values, the DVHGMS could purify the potash feldspar from the Fe2O3 grade of 0.191% in feed to 0.035% in non-magnetic product, while the mass weight of feldspar was 92.35%.
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The separation of iron from potash feldspar can be achieved by taking advantage of external magnetic field since some iron minerals in the potash feldspar possess magnetism [10]. A new high intensity wet permanent magnetic separator was adopted to separate iron from the potash feldspar, and the results indicate that an excellent …
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CMS: cleaner magnetic separation, PMS: planar magnetic separator, RMS: rougher magnetic separation. PMS and DTR comparative studies of Flowsheet 2 (Ore feed of P 80 = 75 µm). Figures - available ...
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