0086-21-58386256

Recovery and purification of metallic silicon from waste silicon slag

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 ...

WhatsApp: +86 18221755073

The Preparation of High-Purity Iron (99.987%) Employing a Process …

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 ...

WhatsApp: +86 18221755073

Novel method for improving iron recovery from electric arc …

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 …

WhatsApp: +86 18221755073

Electromagnetic separation of silicon from metallurgical-grade …

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

WhatsApp: +86 18221755073

Separation and extraction of iron resources from hazardous …

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, …

WhatsApp: +86 18221755073

Development of synthetic slag for desulphurisation of the steel …

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. ...

WhatsApp: +86 18221755073

(PDF) Recovery of iron from electric arc furnace slag: effect of

This work presents the iron oxide recovery from electric arc furnace slag with different temperature and time using acid leaching method.

WhatsApp: +86 18221755073

Leaching of Electric Arc Furnace Slag for Selective Recovery of Iron

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.

WhatsApp: +86 18221755073

Controlling Slag Defects, Insoluble Buildup in Melting …

Viscous non-metallic slags can negatively affect coreless, channel, and pressure-pour furnaces, causing slag formations on the furnace and/or …

WhatsApp: +86 18221755073

Slag recycling

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 …

WhatsApp: +86 18221755073

Control of Slag Defects and Insoluble Buildup in Melting …

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. …

WhatsApp: +86 18221755073

Control of Slag and Insoluble Buildup in Ladles, Melting and …

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 …

WhatsApp: +86 18221755073

A New Process for the Production of Ferrotitanium from Titania Slag

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 ...

WhatsApp: +86 18221755073

Controlling Slag Defects, Insoluble Buildup in Melting …

In addition to being used to keep ladles clean and free of slag buildup, incorporating 1-1.5 lbs. of flux has improved the inductor life of pressure-pour furnaces and coreless induction furnaces around the world. Alkaline …

WhatsApp: +86 18221755073

RECOVERY OF PIG IRON FROM COPPER SMELTING …

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

WhatsApp: +86 18221755073

Utilization of induction furnace steel slag based iron oxide

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 …

WhatsApp: +86 18221755073

Comprehensive utilisation of blast furnace slag

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 …

WhatsApp: +86 18221755073

Effects of induction furnace slag on the durability properties of

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% ...

WhatsApp: +86 18221755073

Studies on direct reduced iron melting in induction furnace

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 ...

WhatsApp: +86 18221755073

Metallurgical resource recovery from waste …

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...

WhatsApp: +86 18221755073

EFFECTS OF INDUCTION-FURNACE SLAG ON …

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 ...

WhatsApp: +86 18221755073

Managing Coreless Induction Furnace Slag Build-Up

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 …

WhatsApp: +86 18221755073

Preparation of Synthetic Titania Slag Relevant to the …

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 …

WhatsApp: +86 18221755073

Waste Heat Recovery from Blast Furnace Slag by Chemical …

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 …

WhatsApp: +86 18221755073

Process of Copper Slag Reduction in an Electric Furnace and the

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.

WhatsApp: +86 18221755073

WO2006107715A3

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 ...

WhatsApp: +86 18221755073

Assessment of induction furnace steel slag as a potential river …

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 ...

WhatsApp: +86 18221755073

Mechanical and Durability Properties of Induction‐Furnace‐Slag

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 …

WhatsApp: +86 18221755073

Zinc and Iron Recovery from Filter Dust by Melt Bath Injection …

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 ...

WhatsApp: +86 18221755073

Control of Slag and Insoluble Build-up in Melting Furnaces

%PDF-1.4 %âãÏÓ 769 0 obj > endobj xref 769 28 0000000016 00000 n 0000001417 00000 n 0000000873 00000 n 0000001710 00000 n 0000001851 00000 n 0000002220 00000 n 0000002584 00000 n 0000003200 00000 n 0000003606 00000 n 0000004049 00000 n 0000004433 00000 n 0000004469 00000 n 0000004691 00000 n 0000004931 00000 n …

WhatsApp: +86 18221755073

Solutions