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Dry magnetic separation method is used to separate magnetic minerals from nepheline syenite ore in order to use in ceramic bodies mainly (Abouzeid and Negm, 2014)
Nepheline Syenite • Abrasives and Refractories Alumina Garnet Chromite Corundum Fig 1: Schematic of the Rare Earth Roll Magnetic Separator • Heavy Mineral Sands Ilmenite Leucoxene • Chemicals and Pharmaceuticals • Recycling engineereD for optimum performance • High-intensity magnetic roll assembled from rare earth permanent magnets
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Magnaroll magnetic separator, the latest design by Boxmag Rapid that uses rare earth permanent magnets for high intensity magnetic separation, was also applied. The main parameters affecting the separation efficiency of these machines were studied. It was found that Magnaroll separator was of high performance, as compared with the other separators
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groups of nepheline syenite were fed to high intensity dry mag netic sepa rator, and Fe 2 O 3 +TiO 2 con tent s of c oncentrates were analyzed by c hanging belt speeds (100, 200, 300, and 400 rpm)
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Usually nepheline syenite ores contain some magnetic minerals (magnetite and hematite) which darken the color of the final powder and manufactured products. Therefore, magnetic separation is used to remove such particles (Burat et al., 2006)
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to high-intensity induced-roll magnetic separators, which remove feebly magnetic minerals. Generally about 25 pct of the ore fed to a nephe- line syenite plant is lost as waste during crushing, drying, grinding, and reduction of iron content, which is usually lowered from 2.0 to 0.08 pct. Table
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Nepheline syenite deposits are commonly large uniform bodies. The preference is for medium to coarse-grained, preferably massive or gneissic where mafic component should constitute less than 5% of the rock, and become liberated by magnetic separation methods when ground to 30 mesh
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The Induced Magnetic Roll Separator (IMR) uses an electromagnet to generate high-intensity magnetic fields. These magnetic fields enable the separation of weakly and para magnetic minerals (e.g. mica, iron-coated silica, etc) from non-metallic minerals
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Engineered for optimum performance, the Eriez DHIMS from HMA Wear Solutions consist of high-intensity magnetic rolls assembled from rare earth permanent magnets. The magnetic rolls come in 4, 6, and 12 inch diameters, and a width of up to 60 inches. They are ideal for continuous-duty applications, treating up to 12 tph feed/separator
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Nov 12, 2007 Magnets for Iranian nepheline syenite. Master Magnets has recently supplied an induced roll high intensity magnetic separator to the Iran Industrial Design Co (IID) for use in the production of high quality nepheline syenite. This is the culmination of some ten years of discussions with the user and product testing in Master Magnets laboratory
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disc magnetic separator: Weakly magnetic minerals from high quality industrial minerals, silica sand, feldspar, nepheline syenite. Processing of heavy mineral beach sands, (ilmenite, garnet, monazite and rutile). Monazite/zircon separation, garnet concentration and purification. Wolframite/cassiterite separation. Columbite-tantalite separation
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Rolls are made of High Power Neodymium-Boron-Iron permanent magnets. Gauss Power: 14000 + Gauss Power on the magnetic roll surface. Magnetic Rolls are available in 100 mm & 150 mm Diameters. Capacity Range (per hour): 50 Kgs – 15,000 Kgs (Upto 15 Tons). Multiple Stage Separation available on one separator. Up to four stage separation
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The syenite termed Cottrell fraction in the following data is that syenite which has been collected from the dust control system of a plant which crushes nepheline syenite for use in the manufacture of roofing. Beneficiated Cot-trell is that part of the Cottrell fraction from which some of the iron has been removed by wet magnetic separation
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Apr 01, 2006 The best results were found in combination of the high intensity dry magnetic separation and flotation between −200 + 38 μm particle sizes. A nepheline syenite concentrate was obtained with 7.3% K 2 O, 5.2% Na 2 O, 0.08% Fe 2 O 3 and 0.09% TiO 2 by the weight of 56.6% at the end of the experiments
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Dec 10, 2014 The ground nepheline syenite sample was subjected to wet high intensity magnetic separation to evaluate the possible enrichment of K 2 O values. The experiments were carried out at different magnetic intensity. The recovery of Na 2 O, K 2 O and Fe in the magnetic fraction is shown in Fig. 7. It was observed that the recovery of all the
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The Induced Magnetic Roll Separator (IMR) uses an electromagnet to generate high-intensity magnetic fields. These magnetic fields enable the separation of weakly and para magnetic minerals (e.g. mica, iron-coated silica, etc) from non-metallic minerals
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Nepheline syenite may be preferred in high volume ceramic manufacture because of lower firing temperature and shorter firing time needed, and is a better flux due to its higher alumina/alkali ratio. However, it is generally more expensive than feldspar. It is also used as filler as well as an abrasive. Crusher 1.7mm Low intensity Magnetic
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Dry high intensity magnetic separator LSV Magnets. Thanks to the material quality used when producing the magnetic roller combination of extra strong NdFeB magnets with special steel washers and the very thin but highly sturdy kevlar or glassteflon conveyor belt this top separator is able to achieve a surface magnetic induction up to 21000 gauss
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Magnetic Separation System Enhances Nepheline Syenite Production Master Magnets Ltd., a U.K.-based manufacturer of magnetic separation equipment, announced that it recently supplied one of its Induced Roll high-intensity magnetic separators to Iran Industrial Design Co. for use in the production of high quality nepheline syenite
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Feb 16, 2014 In 1996, Mahmoud used a dry high intensity induced roll magnetic separator to produce a nepheline syenite concentrate for ceramic industry. He was able to obtain a nonmagnetic concentrate assaying 0.5% Fe 2 O 3 from Abu Khruq nepheline syenite sample assaying 6.78% Fe
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