1795 as dust collector was miniaturized to reduce the difficulty and cost of the process. The entire controller of the high frequency induction melting furnace controls the heating temperature of
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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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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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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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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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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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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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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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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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Subsequently, the process is analyzed in the context of designing furnaces for slag treatment in the non-ferrous metals domain and determining operational parameters . The influence of individual parameters and employed additives on the achievable efficiency of the copper slag reduction process is also examined.
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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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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 ironmaking process requires some adjustments to minimize zinc contamination of the molten iron. For example, it helps to charge the zinc-coated steel scrap early in the melt cycle, allowing more time for the zinc to …
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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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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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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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Abstract— In process of cast iron and ductile iron production, secondary raw material and industrial wastes are formed. The most abundant waste originating in the process is induction …
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The evaluation of synthetic slag is performed in the induction furnace for desulphurisation of plain carbon and alloy steel. ... To investigate the feasibility of S 3 process, the cast iron strips ...
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IF steel slag is a secondary melting slag in which ferrous metal scrap and fluxes are melted using an electromagnetic field to produce steel/cast iron [22] and it generates 10–15% of by- product as slag. Induction furnace slag is not used in the cement/aggregate production due to its low content of CaO [23], it also has high content of iron ...
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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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A Study on the Recovery of Iron from Copper Slag with Temperature . Kwang-Myoung Hwang1, Jin-Sung Lee2, Hyun-Mook Choi3, ... a secondary smelting process to recover alloy phase iron by adding a reducing agent by dry smelting method. However, the ... frequency induction furnace, a large amount of distilled water ...
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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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Ti-bearing blast furnace slag (TBFS) is a type of slag produced by smelting vanadium-titanium-bearing magnetite. About half of the Ti resources enter TBFS, which causes serious loss of Ti resources, so it is of great significance for the recovery of TBFS (Li and Yan, 2023).A large amount of TBFS is difficult to treat by conventional mineral processing, mainly …
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The terms blast furnace slag (BFS) and granulated blast furnace slag, as well as LD slag and electric furnace slag are used for finer distinctions. With high-quality iron ore grades with an iron content of 64 to 67 %, a blast furnace typically …
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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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Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat. To recover the heat, a new waste heat-recovery system—granulating molten BF slag by rotary multinozzles cup atomizer and pyrolyzing printed circuited board with obtained hot BF slag particle—was proposed in this study. The feasibility …
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In this study, high-purity iron with purity of 99.987 wt.% was prepared employing a process of direct reduction–melting separation–slag refining. The iron ore after pelletizing and roasting was reduced by hydrogen to obtain direct reduced iron …
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Recovery and purification of metallic silicon from waste silicon slag in electromagnetic induction furnace by slag refining method. Author ... It is concluded that the magnetic separation is more effectively to remove the iron impurities from the initial content of 5.68% to the final content of 0.48%. ... In this paper, a short process for the ...
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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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