A high titania slag that is used as a feedstock for TiO2 manufacturing is obtained by ilmenite smelting (FeO.TiO2). The composition of the slag obtained by smelting is dependent on the composition of the mineral …
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The process model is a material 9 Gerald Stubbe et al.: Zinc and Iron Recovery from Filter Dust by Melt Bath Injection into an Induction Furnace 50.0 Exhaust gas Heat energy_4 0 Zinc oxide product Filter plant Dust_3 306 50.0 Gas_3 306 Heat energy_3 0 Exhaust pipe Dust_2 372 Gas_2 372 Oxygen Heat energy_2 25.0 Air IF suction hood 0 Heat energy ...
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Titanium alloy was prepared from titania-bearing blast furnace slag (Ti-BF slag) by aluminothermic process in an induction furnace. The effects of aluminum amount on the titanium silicon yield and ...
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Investigation on the effect of partially replacing induction furnace slag with river sand on the crushing strength of concrete revealed a very high strength at 30 % induction furnace slag content ...
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The evaluation of synthetic slag is performed in the induction furnace for desulphurisation of plain carbon and alloy steel. The maximum degree of desulphurisation is 84% with the addition of 2–3 wt% synthetic slag for Al killed steel while 32% for non-killed steel is achieved. The desulphurisation time to achieve the sulphur level (0.03–0. ...
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Introduction. China is the world's largest steel producer, with the China Iron and Steel Association estimating that the country's crude steel production in 2022 will be 935 million tonnes [Citation 1].Steel slag mainly refers to the blast furnace slag and converter slag produced in the process of iron making and steel making, and with the increase of steel production, the …
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Considering the compositional characteristics of BOF slag, the transformation of the iron-containing phase into (Mn,Mg) y Fe 3-y O 4 is the key step. Thus, a novel process for …
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The maximum output power of the induction furnace was 25 kW. Its coil size was 100 mm outside diameter, 90 mm inside diameter, and 200 mm long. The graphite crucible containing the raw materials was placed in the center of the induction furnace coil to ensure that the whole crucible was in the coil.
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Slag contain Al2O3, MgO, SiO2, Fe2O3, CaO & MnO. No. of heat 1 12 per day 312 per month 3744 per year Table - 1 Production of Slag Weight of CI (kg) Slag produced (kg) 650 12.5 7800 144.6 16900 3133 202800 37596 Induction …
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In electric furnaces and pressure pour furnaces, slags must have a high interfacial surface tension to prevent refractory attack and to facilitate their removal from the surface of the molten metal. …
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The main components of EAF slag are Fe x O, Fe, CaO, SiO 2, MgO, and MnO.The EAF slag contains more iron, but it is mainly dominated by RO phase, which is difficult to be recovered by magnetic separation, resulting in low utilization of iron in slag (Liu et al., 2023, Zhang et al., 2019).The traditional view that EAF slag and converter slag are similar in nature, …
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Hot modification of EAF slag should be conducted at 1500–1600 °C for at least 60 min to guarantee homogeneous liquid slag. The liquid slag was poured onto an iron mold to …
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The induction heating model of two-phase melt in the iron removal process in an electromagnetic induction furnace was established, in which the real-time coupling of electromagnetic field ...
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A method of using an induction furnace to process iron ore into an iron product such as pig iron in which iron ore is the main or exclusive source of iron fed into the induction furnace. ... provided on an opposite side of the induction furnace 20 from the product spillover outlet 24 and at a height above the slag/iron liquid metal interface 28 ...
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This study focuses to completely replace river sand by induction furnace steel slag (IFSS) for producing standard concrete of M25 grade without compromising the mechanical strength of the resulting mix. One hundred and fifty millimeter sized cubes and 150 mm × 300 mm sized cylinders were casted using Portland slag cement (PSC) and Portland ...
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A significant amount of electric arc furnace slag (EAFS) is generated as a by-product from the steelmaking industry. Acid leaching was carried out with both the presence and absence of oxidants to intensify the iron recovery from EAFS in the final product.
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The melting of iron and steel in induction furnaces results in low emissions compared to the cupola furnace. Emissions due to the combustion of fossil fuel are especially prevented. An exhaust capture efficiency of up to 95 % is possible using special capture systems, such as side- draughts, movable hoods and partial covering of the furnace.
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Depending on the specific process be ing used and the type of iron or ... the system generates 15% of by-products as slag. In the present study, induction furnace steel slags are replaced with ...
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Recovery and purification of metallic silicon from waste silicon slag in electromagnetic induction furnace by slag refining method J. Clean. Prod., 229 ( 2019 ), pp. 1335 - 1341, 10.1016/j.jclepro.2019.05.071
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It is obtained from an induction furnace that is a modern construction for the industrial manufacturing of iron: It is obtained from a blast furnace which is an old construction for the manufacturing of iron ... the various compositions. Induction furnace slag was mixed with cement in the varying proportions of 0%, 5%, 10%, 15%, 20%, 25%, 30% ...
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This work presents the iron oxide recovery from electric arc furnace slag with different temperature and time using acid leaching method.
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Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are
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Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag control ... Use of a channel induction furnace to process at least one of a molten metal product, a vapor phase metal product and a slag product from a variety of feed materials ... Slag control in a channel induction furnace US7776126B2 (en) * 2008-03 ...
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2.4. Induction Furnace Slag (IFS) IFS used in this work was collected from a large steel manufacturing industry located at Chittagong, Bangladesh (Figure 4).Slag particles were first separated according to standard sieve size of 25 mm and smaller (Figure 5).IFS aggregate of different sizes was then mixed together in a way so that particle size distribution remained …
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The main challenge of the steel industry for the next decade is the steel production transformation process, starting in Europe. The CO 2 intensive blast furnace/basic oxygen furnace (BOF) route will be substituted by a combination of Direct Reduced Iron (DRI), based on natural gas, later on "green" hydrogen, with an Electric Arc Furnace (EAF) or a Submerged Arc Furnace (SAF), …
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Fluxing of melting furnaces will eliminate slag build-up on coreless induction furnace sidewalls, improve slag fluidity, reduce melting costs by improving electrical efficiency, keep furnace volumes and ladles constant, and …
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Metals and metal oxide-based nanocomposites play a significant role over the control of microbes. In this study, antibacterial activity of iron oxide (Fe2O3) nanocomposites based on induction furnace (IF) steel slag has been carried out. IF steel slag is an industrial by-product generated from secondary steel manufacturing process and has various metal oxides …
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Steel slag from an electric arc furnace (EAF) may contain significant amounts of oxides of valuable metals. The recovery of iron and other metals from the EAF slag using smelt-reduction...
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Viscous non-metallic slags can negatively affect coreless, channel, and pressure-pour furnaces, causing slag formations on the furnace and/or …
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Liquid iron in 50 tons ladle from induction furnace was poured into the EOF vessel and the required quantities of calcined lime was added for the removal of sulphur and phosphorus. ... During this refining process, slag was removed intermittently. It is known that, at certain conditions above 1600 °C, phosphorus from the slag enters the bath ...
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induction principle, made use of in foundries [11]. Induction furnace slag is a basic slag that is different from blast furnace slag which is an acidic slag. Therefore, IFS is non-toxic, non ...
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During the melting process, slag is generated from oxidation, dirt, sand and other impurities. Slag can also be generated from the scrap, erosion and wear of the refractory lining, oxidized …
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In addition, Ben steel and Tang steel [89] reused liquid refining slag in LF furnaces for three cycles, and then treated it as regular slag to maximize benefits. Tests showed an average addition of 262 kg of refining return slag per furnace, saving 216 kg of active ash and 41 kg of aluminum particles. The process specifics are depicted in Fig ...
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In this step, the composition of slag is adjusted to dephosphorize, if necessary. Step 3, the high basicity slag is dosed to refining for deoxidation. Similar to the process investigated in this study, researchers [9,10,11] have studied the process of smelting pure iron with DRI in an induction furnace, which has delivered good results. However ...
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