Electromagnetic separation of coarse Al–Si melts: The migration behavior of iron-rich phase and continuous growth of primary silicon. ... In contrast, the addition of Mn and Cr favors converting β-AlFeSi into α-AlFeMnSi, and forming the Chinese script and fish-bone Fe-rich phase. The size of the Fe-rich phase formed after adding Cr is ...
DetailsTUE electromagnetic separation technology, as de- veloped and realised, invo-,-es minimal contact of the surfaces contaminated by radioactive materials with the room environment. This technology is based on sealed connection of the separator c'.amber faces, where the removable units are mounted with two sta- tionary boxes so that the …
DetailsCurrently, one of the effective methods to remove Fe in Al-Si alloy is promoting the formation of sludge phases by addition of Mn and Cr, and eliminating sludge phases by physical separation such ...
DetailsIt gives an amazingly clean cut separation of tailings, middlings and concentrates, effecting magnetic recoveries averaging over 99%. Standard accessory equipment consists of a …
DetailsIn this work, Ti 3 AlC 2 was modified by doping metal ions (Cr, Mo, Ni, Zr, Fe) with a molar ratio of 1:4 at the M-site (Ti). The effects of different doping elements on the phase composition, micromorphology, electromagnetic wave absorbing ability and dielectric of the absorbing materials were investigated in detail.
DetailsThe metastable liquid phase separation and rapid solidification kinetics of CoCrCuFeNi high entropy alloy (HEA) has been investigated by electromagnetic levitation (EML) …
DetailsA novel magnetic nanocomposite was synthesized using graphene oxide (GO), polyethylenimine (PEI), and Fe 3 O 4 to removal hexavalent chromium (Cr(VI)) from water and soil. Therein, GO was functionalized with plenty of −NH 2 by the modification of PEI through an amidation reaction, and the resulting GO/PEI reacted with FeSO 4 ·7H 2 O …
DetailsAbstract and Figures. The aim of the study was to recover metals from e-scrap using electrostatic and magnetic separation successively. The type of phases in the four …
DetailsThis work introduces a novel methodology for synthesis of magnetic biochar from cellulose using an electromagnetic induction technology. More rough surfaces, sharp corners and edges, and compact regular pore structure with Fe 3 O 4 and Fe 2 O 3 of magnetic biochar was obtained. Such magnetic biochar possessed higher specific …
DetailsEffects of Cr content and electromagnetic stirring on the phase separation of Cu-Cr alloy Zhihao Yang and Qinglin Jin-Impact of Cr content on the thermoelectric properties of the Cr/Sb co-doped Mg2.2xCrx(Si0.3Sn0.7)0.98Sb0.02 compound Jia Ju, Mengfei Fang, Hong Cai et al.-Coupling effect of temperature and Cr content on the …
DetailsMagnetic core–shell Fe 3 O 4 @polyanilines (Fe 3 O 4 @PANI) were controllably synthesized to harvest microwave (MW) energy for ultrafast Cr(VI) reduction.The nanocomposites are excellent MW acceptors due …
DetailsThis paper investigated the fabrication of in situ Al/Mg 2 Si functionally gradient materials (FGMs) by the electromagnetic separation method. The results show that due to formation of primary Mg 2 Si particle clusters, it is difficult to fabricate in situ Al/Mg 2 Si FGMs with a smooth gradient distribution of primary Mg 2 Si particles when …
DetailsRecovery of Ti-bearing blast furnace slag and diamond wire saw silicon powder waste by alloying and electromagnetic separation technique. Author links open overlay panel Huazhen Gu a, Jing Cao a, Jijun Wu a b, Min Xu a, Wenhui Ma a b. Show more ... and a W–Cr–Si alloy (Paul et al., 2017). Elemental silicon is the main …
DetailsThe Cu-Cr immiscible alloys were prepared by arc melting. The effects of Cr addition and electromagnetic stirring on the phase separation, microstructure were examined. The results show that serious phase segregation occurs at the center of the sample with increasing Cr contents, forming a sandwich like structure. The shape of the primary Cr …
DetailsSpecifically, Mn, Cr, or other neutralizing element can change the shape of iron-rich phase from needle-like to more regular structure like blocky, bulk, and sphere, which decreases …
DetailsElectromagnetic Waves: Electric (red) and magnetic (blue) ... 1.255 seconds at their mean orbital (surface-to-surface) distance. The relative sizes and separation of the Earth–Moon system are shown to scale. It is just that: the speed of a photon or light particle. The speed of light in a vacuum (commonly written as c) is 299,792,458 meters ...
DetailsSemantic Scholar extracted view of "Electromagnetic separation of coarse Al–Si melts: The migration behavior of iron-rich phase and continuous growth of primary silicon" by Ting Xiao et al. ... Separation of Al-Si-Fe-(Mn/Cr) melts for simultaneous recycle of Al-Si scraps and purification of silicon. Pei Xian Lei Yun Wenhui Ma Chao Wang ...
DetailsCoarse Al-Si alloy is produced from bauxite via carbon electro-thermal reduction method. Silicon and iron-rich phases are two main detrimental impurities in coarse Al-Si alloy, and they can be simultaneously removed by adding Mn under the electromagnetic field. We focus on the influence of different Mn additions, dropping …
DetailsThe Cu-Cr immiscible alloys were prepared by arc melting. The effects of Cr addition and electromagnetic stirring on the phase separation, microstructure were examined. The results show that serious phase segregation occurs at the center of the sample with increasing Cr contents, forming a sandwich like structure. The shape of the …
DetailsThe effects of Cr addition and electromagnetic stirring on the phase separation, microstructure were examined. The results show that serious phase segregation occurs …
DetailsTechnologies to remove iron from aluminum are extensively reviewed. The precipitation and removal of Fe-rich phases (sludge) are discussed. The dense phases can be removed …
DetailsThe journey of development of magnetic separation technology is explained elsewhere in details (Oberteuffer, 1974, Gill, 1991; Svoboda and Fujita, 2003). Magnetic separation of paramagnetic transition metal oxides (MnO 2, Cr 2 O 3, TiO 2, V 2 O 5, etc.), ferruginous manganese (Mn) ore, electronic waste, slags, mineral sand, etc is facing ...
DetailsSchematic diagram of electromagnetic vacuum directional solidification system. The main experimental process is as follows. Prescribed raw materials, Al, Si, Fe with Mn particles were placed in the graphite crucible (ID = 28 mm; OD = 36 mm; length = 130 mm) …
DetailsMagnetic Induction Heating (MIH) of magnetite nanoparticles is employed as a novel synthesis procedure of carbon based magnetic nanocomposites. Magnetic nanoparticles (Fe3O4) and fructose (1:2 ...
DetailsThe metastable liquid phase separation and rapid solidification kinetics of CoCrCuFeNi high entropy alloy (HEA) has been investigated by electromagnetic levitation (EML) technique. The maximum liquid undercooling attained 452 K (0.27T L), and the critical undercooling to initiate phase separation was determined as 172 K. By …
DetailsElectromagnetic separation is the method to concentrate the ore or to remove unwanted materials like sand and clay from the ore. Magnetic or electromagnetic separation is the technique based on differences in magnetic properties of the ore or gangue. The particles that are attracted with the magnetic field are separated out.
DetailsHigh-performance Cu-Cr alloys are widely used as electrical contact materials due to their combined properties of high mechanical strength and high electrical conductivity [1–3].However, due to the poor solubility of Cr in Cu and the density difference between Cu and Cr, it is difficult to prepare this alloy under conventional smelting and casting …
DetailsThe principle of electromagnetic separation indicates that the molten slag system is only subject to separation force, which forces it to move in the opposite direction as the molten silicon droplets undergoing electromagnetic force, thereby resulting in the yield of a bulk silicon product and tail slag.
DetailsIn addition, in another study, we used electromagnetic directional crystallization to simultaneously prepare high-purity Si and low-Fe eutectic Al–Si alloy through the separation of Al–Si–Fe–(Mn/Cr) melts using low-purity Si and designed Fe-containing Al–Si scraps as raw materials [25]. Therefore, electromagnetic directional ...
DetailsThe shape of the primary Cr transforms from fine dendrite to more developed dendrite. Thermodynamic analysis indicates that Cr addition increases the driving force for the liquid phase separation. The electromagnetic stirring can facilitate elative motion between the Cr droplets and the melts, and thus intensify the segregation …
DetailsThe relevance of the paper is that dry magnetic separation (DMS) is the main beneficiation method of magnetite ores. The lack of efficient industrial-grade machines and apparatus for separating fine-grained magnetite ores means that DMS is used mainly as a pre-concentration operation for fairly large classes.
Details2.2. Adsorption experiments. Pb(II) and Cr(III) (1000 mg/L) stock solutions were prepared from Pb(NO 3) 2 and Cr(NO 3) 3 ·9H 2 O. Batch studies were performed using the desired amount of diluted metal ion solution (0–100 mg/L) and 0.5 g/L GGO in 50 mL falcon at pH 4.0 and 298 K. After equilibration for 180 min, collect the sample …
DetailsRemoval efficiency of iron reaches 90%, acicular β-Fe phase become α-Fe phase. Si and iron phases in Al–Si alloy transfer from acicular-like to bulk and fragments. …
DetailsSubsequently, it is separated and removed by physical sedimentation, filtration, electromagnetic separation, ... As Mn and Cr both demonstrate affinity with Fe,24 the effects of combining iron with Mn and Cr for sediment separation from the 356 alloy are of interest. Therefore, we intend to observe the synergistic effects of manganese, …
Details1. Introduction. Electromagnetic isotope separation is an effective process to separate and enrich the high purity isotopes, especially for the separation of heavy metal elements due to its advantage of high enrichment factor, and numbers of such devices have been used for various isotopes separation [1], [2], [3].Nowadays the radioisotopes for …
DetailsElectromagnetic separation of stable isotopes at CIAE is described. The separators, the ion sources used, the isotopes separated and their applications are introduced. ... KI 340-615 17.88 37 copper Ca F2 i Ca 750-900 22 70 copper Ti F2 d TiCl4 copper Cr F2, F3 1 CrC13 280-450 44 66 graphite Fe F2, F3 i, d FeC12 130-780 28 54 …
DetailsTo form an insulation oxide layer on the powder surface, the heat treatment was performed in an atmosphere in which Fe is reduced while Cr and Si are selectively oxidized. The oxidation potential was controlled by the p H 2 (g) / p H 2 O (g) ratio and the powders were annealed at 600 ℃ under a p H 2 (g) / p H 2 O (g) of 41.8. To examine the ...
Detailselectromagnetic separation of cr o; Control of Flow Separation Using Electromagnetic Forces · If a fluid is electrically conductive, its flow may be controlled using electromagnetic forces. Meanwhile, this technique is a recognized tool even on an industrial scale for handling highly conductive materials like liquid metals. However, also ...
DetailsFe in Al-Si cast alloy scrap melt was eliminated by electromagnetic filtration of primary iron-rich phases, which were formed by adding Mn in the melt. The principle of electromagnetic filtration is that the electromagnetic force scarcely acts on the primary iron-rich phases due to its low electric conductivity as compared to the melt. As a result, …
DetailsPE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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