Feasibility Study of Dephosphorization of Slag Generated ...

Jun 02, 2017· Basic oxygen furnace slag (BOF slag) is an unavoidable by-product of steelmaking process of basic oxygen furnace. The main chemical constituents of BOF slag are CaO, FeO, Al 2 O 3, SiO 2 and MgO. Due to its high metallic value (FeO: 16-20%) and lime content (CaO: 45-50%), it is possible to use in iron making and steelmaking process to replace lime and recover iron and CaO.

Making Slag Iron Magnetic Field Intensity In Us

intensity of steelmaking slag. steelmaking slag iron magnetic field intensity steel making slag iron magnetic field intensity in us Iron ore Wikipedia the free encyclopedia This stockpile of iron ore pellets will be used in steel production The characterization of these steelmaking slag fines has led to the development of a technology of weak magnetic .

Recovery of high grade iron compounds from LD slag by ...

Jan 10, 2014· Evolution of FeO t (a), CaO (b) and P 2 O 5 (c) contents in the magnetic fractions of LD slag as function of intensity of magnetic field of wet magnetic separation. The grinding of steel slag and magnetic separation are necessary for a better separation of a high grade iron compounds which can be directly recycled in converter steel mill.

LessEMF.com Magnetic Field Shielding

The strong magnetic field from the speaker magnet can create havoc! Shielding a compass is not a good idea as it also shields the Earth's magnetic field. The Speaker Magnet Shield is designed to attach to the back of the speaker magnet reducing magnetic field emissions by 80-90%. Simple to install. Just place it on the back of the magnet.

Magnetic field - Wikipedia

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents,: ch1 and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.: ch13 A permanent magnet′s magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets.

Characteristics and applications of iron and steel slag ...

Today, iron and steel slag is used in many fields where its unique characteristics can be put to effective use. As a result of growing environmental awareness, iron and steel slag is highly regarded as a recycled material that can reduce impacts on the environment due to its resource-conservation and energy-saving effects.

Sustainable Utilization of Steel Slag from Traditional ...

Steel slag is a large amount of residual material produced in the process of steel manufacturing. With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue. Through an in-depth study on steel slag, it is apparent that it has been widely used in various fields in recent years. The resource utilization of steel slag is not only conducive to ...

US20120073404A1 - Method of recovering valuable metal from ...

A method of recovering a valuable metal from slag is disclosed. The method includes the steps of: applying a magnetic field whose magnitude is increased in a stepwise fashion to crushed slag to separate a magnetic material from the crushed slag; and introducing a reductant into the separated magnetic material to recover a valuable metal therefrom.

Recovery of iron from copper slag by deep reduction and ...

Nov 20, 2013· Under the optimized condition of the coke powder content of 14wt%, the calcium-to-silicon mass ratio (Ca/Si) of 0.2, the roasting temperature of 1300°C, the roasting time of 3 h, the grinding time of 20 min, and the magnetic field intensity of 61 kA·m−1, the iron recovery rate of the copper slag can reach 91.82%, and the extracted iron ...

Metal Recovery from Steelmaking Slag

air oxidation and magnetic separation. The oxidation of slag was carried out in both solid and liquid states, attempting to optimize the conditions of each. The effects of oxidation time, temperature, slag basicity, and magnetic field strength on recovery and grade of the concentrate were investigated and optimized oxidation of iron mono-oxide ...

Metal Profile: Iron Properties and Characteristics

Jan 12, 2020· History . Iron was likely originally discovered and extracted as a result of wood burning on top of iron-containing ores.   The carbon within the wood would have reacted with the oxygen in the ore, leaving behind a soft, malleable iron metal. Iron smelting and the use of iron to make tools and weapons began in Mesopotamia (present-day Iraq) between 2700 and 3000 BCE.

A Novel Hysteresis Model of Magnetic Field Strength ...

Hao Wang, Jianbo Zhan, Zhenhua Yu, Ying Zhang, Jiang Yu, Yongfa Gui, Tingting Yu, Jiao Xie, Hongkui Zhang, Yafeng Ji, Na Zan, Rongrong Fu, Deniz Perin, " A Novel Hysteresis Model of Magnetic Field Strength Determined by Magnetic Induction Intensity for Fe-Si Electrical Steel Applied in Cigarette Making Machines ", Journal of Materials,. vol. 2016, Article ID 1509498, 5 pages, 2016. https://doi ...

electromagnetism - Magnetic field strength from a steel ...

The Earth's field points uniformly through the long axis of the cylinder. Is there some way to determine the magnetic contribution coming from the steel bar? Is there even a magnetic signature since the time derivative of the magnetic field is 0? My thinking is yes, because steel is made of iron …

Electromagnetic Steel Solution in Electromagnetic Field ...

netic field intensity is not circular. This shows that even the non-oriented electromagnetic steel sheet is anisotropic in magnetic prop-erty. The grain-oriented electromagnetic steel sheet is highly aniso-tropic in magnetic property. In the direction of rolling, its magnetic field intensity is small for obtaining a magnetic flux density of 1.0T.

Enhancement of Iron Recovery from Steelmaking Slag Fines ...

Jul 28, 2016· Steelmaking slags are usually processed for iron recovery by dry magnetic separation. The recovered iron-rich products are recycled back into the ironmaking and steelmaking processes to replace high-cost steel scrap and iron ores. However, current slag processing is far away from optimum conditions, especially for slag fines with small particle sizes, resulting in generation of nonrecyclable ...

Utilization of Waste Copper Slag to Produce Directly ...

The DRI was obtained after magnetic separation. The grinding fineness of reduced pellets was about 95% passing 0.074 mm and the magnetic field intensity was 0.08 T. The chemical compositions of copper slag and iron concentrate were measured using chemical analysis.

Measurement of metallic iron in steel making slags ...

Jan 01, 2019· The steel slag is subjected to crushing/magnetic separation to generate different sizes of slag products with varying metallic values. Based on size and metallic content, these products are recycled in sinter base mix, iron making units and as scrap in steel making process.

Iron and Steel Slag Statistics and Information - USGS

Slags are nonmetallic byproducts of many metallurgical operations and consist primarily of calcium, magnesium, and aluminum silicates in various combinations. Iron and steel slags are coproducts of iron and steel manufacturing. In the production of iron, the blast furnace is charged with iron ore, fluxing agents, usually limestone and dolomite, and coke as fuel and the


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