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An additional 01000 kgs. of slag materials are added for 060% desulfurization. For higher sulfur levels, max amount of slag we would add at LMF would be about kg. For required desulfurization >60%, we would go to max desulfurization, which could require up to 2200 kg. of slag .
Oct 15, 2014· If slag phosphorus (P) content is high and the slag is not flushed, it may remain insufficiently basic after the FeSi addition. These conditions can lead to P reversion in the heat, especially if the slag is hot, and the bath analysis exceeds about % Si and % Mn at C .
Sep 24, 2012· Electric arc furnace steelmaking 1. AISI | Electric Arc Furnace Steelmaking (cont.) Page 1 of 8 Home Steelworks Home Steel Markets Electric Arc Furnace Steelmaking By Jeremy A. T. Jones, Nupro Corporation Automotive continued Construction Cans Containers Furnace charging Other Markets Melting Refining Deslagging Steel Industry Tapping Furnace turnaround Statistics Public .
In basic oxygen furnace (BOF) steelmaking operations lime is added to the furnace to produce a slag. The slag must be basic to assist in the removal of phosphorus and sulfur from the metal phase ...
Slag removal. Keeping furnace slags on the molten steel too long can result in a reversion of elements such as phosphorus back into the steel. To avoid this, slag can be removed at slagskimming stations, where the ladle is tilted forward and a rake scrapes the slag into a slag pot parked beneath the ladle.
Some steelmaking slag is inevitably tapped with the liquid steel. The mass of steelmaking slag ... phosphorus reversion; with a stopper, slag carryover is reduced . to 3–5 kg/t and phosphorus ...
Jan 27, 2013· Structure and properties of metallurgical slag ss 1. D E P A R T M E NT O F Metallurgical and Materials Engineering National Institute of Technology, Rourkela Structure and Properties of Metallurgical Slag By Dr. Associate Professor Dept. .
Distribution and enrichment of phosphorus in solidified BOF steelmaking slag. ... Distribution and enrichment of phosphorus in. ... and can be applied to suppress the reversion of phosphorus into ...
Overview of Current Flux Practices and Challenges for the Oxygen Steelmaking Process Rich Brelowski, Carmeuse Lime ... the steelmaking operation will see. The slag aim chemistry and flux practice of the iron making step is critical for a low cost operation. ... steelmaking tap temperatures that can cause phosphorus reversion. Typically the best ...
May 31, 2017· It is well known that the oxygen potential at the interface between "Fe t O" containing slag and liquid iron is an important process parameter, which affects the driving force for refining reactions such as desulphurization and dephosphorization. However, since direct measurement of interfacial oxygen potential is not feasible, there is often no way to define this important parameter ...
Secondary Refining For purposes of this article, Secondary Refining or Secondary Metallurgy is defined as any post steelmaking process performed at a separate station prior to casting and hot metal desulfurizaion. It does not include normal alloying prac tice in the furnace or at the ladle during tapping.
Effect of MgO and Al2O3 variations in oxygen steelmaking (BOF) slag on slag morphology and phosphorus distribution. ... slag would hinder the reversion of phosphorus from slag to.
Jan 27, 2013· Structure and properties of metallurgical slag ss 1. D E P A R T M E NT O F Metallurgical and Materials Engineering National Institute of Technology, Rourkela Structure and Properties of Metallurgical Slag By Dr. Associate Professor Dept. of Metallurgical and Materials Engg.
Steel slag, a byproduct of steel making, is produced during the separation of the molten steel from impurities in steelmaking furnaces. The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling.
May 14, 2011· The Basic Oxygen Steelmaking process differs from the EAF in that it is autogenous, or selfsufficient in energy. The primary raw materials for the BOP are 7080% liquid hot metal from the blast furnace and the balance is steel scrap. These are charged into the Basic Oxygen Furnace (BOF) vessel.
The synthetic slag of the CaO – MgO – Al2O3 – SiO2 system was prepared and heated up to its liquidus temperature, down that it became the saturated spinel MgAl2O4. Using a rotational viscosimeter the slag viscosity at this temperature was measured, allowing obtaining the experimental value of the homogeneous slag viscosity ηо.
Mar 02, 2015· Understanding Steel Making Operations in Basic Oxygen Furnace ... Slag in the ladle results in P reversion, retarded desulphurization, and possibly steel with reduced cleanliness. Ladle additives are available to reduce the iron oxide (FeO) level in the slag but nothing can be done to alter the phosphorus. ... In BOF steelmaking a high CaO/SiO2 ...
STEELMAKING July / August 2018 Remote viewing made easy STEELMAKING How thermal imaging cameras are helping to reduce slag carryover in steel production and improve efficiency The AMETEK Land slag detection system in use S teel slag, a molten liquid melt of silicates and oxides, is a byproduct of the steelmaking process, which is produced
As its description of the metal and slag phases are equivalent this model will be further discussed in the section dedicated to slag models. 3. Models for the Slag Phase Even though several physicalchemical models have been formulated for slags, the actual structure of the slags used in steelmaking .
Basic Oxygen Furnace Steelmaking Basic Oxygen Furnace (BOF) steelmaking accounts for just under 40% of the liquid steel output in North America. While this figure may decline with the growth of Electric Arc Furnace (EAF) use, the BOF will continue to be a major source of steel for many years.
EC number: | CAS number: The fused substance formed by the action of a flux upon the gangue of ironbearing materials charged to a steelmaking furnace and upon the oxidized impurities in the steel produced. Depending upon the particular steelmaking operation, the slag is composed primarily of sulfur and oxides of aluminum, calcium, iron, magnesium, manganese, .
Jun 12, 2017· The phosphate capacity for the slag used in this study and that for a typical steelmaking slag were calculated to be × 10 17 and × 10 19, respectively. Due to the difference in phosphate capacity, the phosphorus partition coefficient of steelmaking slag is two orders of magnitude higher than that of the current slag as shown in Figure ...
Slags, steelmaking. The fused substance formed by the action of a flux upon the gangue of ironbearing materials charged to a steelmaking furnace and upon the oxidized impurities in the steel produced.
A wide variety of silicon slag options are available to you, such as free samples, paid samples. There are 2,380 silicon slag suppliers, mainly located in Asia. The top supplying countries or regions are China, Taiwan, China, and India, which supply 99%, 1%, and 1% of silicon slag respectively.
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