Nov 02, 2011· The invention provides a method for recovering (collecting) iron and phosphorus from steelmaking slag, which includes a first step in which phosphoruscontaining steelmaking slag such as dephosphorization slag is reduced using a reducing agent containing for example carbon, Si or Al to reduce iron oxide and phosphorus oxide in the slag and to recover them as phosphoruscontaining .
A steelmaking process is disclosed. The process includes producing molten steel and molten steelmaking slag in a steelmaking process, the steelmaking slag including iron units and flux units, and thereafter producing molten iron in a molten bath based direct smelting process using a substantial portion of the steelmaking slag as part of the feed material requirements for the direct smelting ...
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Steelmaking slag (BOF and EAF) is cooled similarly to aircooled BF slag and is used for most of the same purposes. As the production process varies at this stage depending on the type of steel being made, the resulting slags also have diverse chemical properties making .
92 IRON AND STEEL SLAG (Data in thousand metric tons, unless otherwise noted) Domestic Production and Use: Ferrous slags are valuable coproducts of ironmaking and steelmaking. In 2001, about 19 million tons of domestic iron and steel slag, valued at about 165 million1 (), were consumed. Iron or
and optimizes the process of steelmaking in different production units. SteelExpert Supervision, a set of online models, is monitoring the metallurgical and thermal process, cyclically calculates the actual condition of steel bath and slag. This provides the analysis and temperature of steel bath and slag at any
APPLICATION OF ELECTRIC ARC FURNACE SLAG ... steelmaking slag shows a considerably higher content of iron, manganese, and magnesium along with the lower silicon content higher CaO/ SiO2 ratio, and, finally, it contains almost no sulphur at all. Steel mill slag has ... as a valuable secondary raw material for purposes in other branches of ...
Jun 23, 2016· Search for Reducing Or Smelting Slag Or Dross As Starting Material Patents and Patent Applications (Class 75/) Filed with the USPTO ... The process includes producing molten steel and molten steelmaking slag in a steelmaking process, the steelmaking slag including iron units and flux units, and thereafter producing molten iron in a molten ...
Electric arc furnace slag is produced during the manufacture of crude steel by the electric arc furnace (EAF) process. In this process steel scrap with additions of fluxes (, lime[stone] and/or dolomite) are heated to a liquid state by means of an electric current. During the melting process the fluxes combine with nonmetallic scrap components and [.]
Also, steelmaking slag is used to make dikes at petroleum tank farms, because it resists heat. ... After all valuable products are removed, coke gas is recirculated to other parts of the steel ...
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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, .
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Recycling of steelmaking dusts the redust concept J. Min. Met. 41 B (2005) 7 good and high evaporation degree of those components under the conditions of Radust test runs can be expected, even when the reduction degree in the flame and reactor is only moderate.
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Steelmaking Slag Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations 12/19/2017 EN (English US) SDS ID: 769 2/12