Normally, blast furnace slag is either quenched by water (granulated slag) or slowly cooled in air. In 2013, nearly 82% of the blast furnace slag was quenched by water [ 2]. Converter slag and electric arc furnace slag are generally slowly cooled at a slag yard in air. Almost 72% of blast furnace slag is used as cement, and other main uses are road
Get PriceAssessment of hexavalent chromium release in Malaysian electric arc furnace steel slag for fertilizer usage L K Bankole 1, S A Rezan and N M Sharif 1School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
Get Price5. Legal Status of Slags, European Slag Association (Euroslag), pp. 2, 10, 01/2006. 6. Energy use in the steel industry report, worldsteel, 2014. 7. Reusing the coproducts of the steel industry, BlueScope Steel. The worldwide average recovery rate for slag varies from over 80% for steelmaking slag to nearly for ironmaking slag.
Get PriceAssessment of hexavalent chromium release in Malaysian electric arc furnace steel slag for fertilizer usage View the table of contents for this issue, or go to the journal homepage for more
Get PriceElectric arc furnace (EAF) steel slag has been identified as an effective material for use as a filter media for the removal of P from both point and nonpoint sources of pollution. In order to further assess the feasibility of this technology for use in Vermont, several …
Get PriceBecause blast furnace slag contains fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as calcium silicate addition to these three components, steelmaking slag also contains components such as FeO, MnO, and P 2 O 5, and is used for a broad range of agricultural purposes, including dry field farming and pastures in addition to rice cultivation.
Get Priceslag generated in the process of refining blast furnace s hot metal in basic oxygen converter. BF and BOF slag generated in integrated mills but EAF slag is achieved in mini mills. Today, one of the important indicators of sustainable steelmaking is quantity of slag (production) and its utilization. About 70 years ago, slag generation
Get PriceNov 14, 2018· In addition, it contains iron oxides (FeO, Fe2O3), manganese oxide (MnO), magnesium oxide (MgO), alumina (Al2O3), and phosphorus penta oxide (P2O5) etc. The chemical composition of steelmaking slag varies with the furnace type, steel grades and pretreatment method. Tab 1 summarizes the chemical composition of BOF slag and EAF slag.
Get PricePreparation of the EAF slag sample. The EAF slag obtained from the iron and steelmaking factory Klang, Malaysia was about 20 mm in size. The sample was crushed with the laboratory roll crusher and further reduced by using ball mill. The sample was sieved with mesh of different aperture to various sizes, the particle sizes of <63μm was used.
Get PriceProduct Description:We are dealing in Steel slag. The Ground Granulated Blast Furnace Slag (GGBS) is a type of ecofriendly green building material and high quality secondary cementitious material for concrete and cement. It is recognized as one of the best secondary cementitious material for building high durable concrete
Get Priceconverter) and electric arc furnace (EAF) as well as from the secondary metallurgy steel treatment ( ladle furnace). The reuse of slag has been widely applied in many countries. Slags due to their properties can serve a role of a construction aggregate for roads building, soil stabilization, fertilizer …
Get PriceAlert Recycling of Byproducts (July 2016) 1. Application of fertilizer made of steelmaking slag in the recovery of paddy fields damaged by the tsunami of 2011. X. Gao, T. Ito, H. Nasukawa, S. Kitamura. Read more 2. Influence of phosphate binders on the physical and mechanical properties of
Get PriceFertiliser Other Interim storage Landfill Ironmaking slag (BF) Steelmaking slag (BOF) Ironmaking dust and sludge (BF) Steelmaking dust and sludge (BOF) Steelmaking slag (EAF) Steelmaking dust and sludge (EAF) The main solid coproducts produced during iron and crude steel production are slags (90% by mass), dust and sludge.
Get PriceElectric Arc Furnace Slag (EAF or steel furnace slag) Produced when scrap metal and fluxes are oxidized by the use of an electric current. Molten slag is generally placed into ground bays for cooling. Both BOF and EAF slags are somewhat heavier than Blast Furnace Slag and most quarried rock material. Uses include
Get PriceSteelmaking slag is an environmentally safe product with a wide range of valuable uses. Over the past several years, the Steel Slag Coalition ("SSC"), a group of 63 companies that produce steel, process slag, or both, has undertaken a comprehensive study of the chemical composition of three slag types generated during the steelmaking
Get PriceElectric Arc Furnace Tests. For all tests, the furnace was preheated by inserting a propane burner through the slag door and preheating for approximately 12 h. The initial charge of shredded auto scrap, reductant, and slag formers was top charged to the furnace by means of a charging bucket. The amount of scrap in this initial charge was 450 lb.
Get PriceBasic slag (CaSiO3) is produced through the openhearth method of steelmaking and is used to amend highly acidic soil. Its pHraising effect is similar to that of ground limestone. In addition to ...
Get PriceOct 27, 2011· EAF Slag. Process. The BOS process needs to be fed with molten iron, whereas the Electric Arc Furnace (EAF) can operate with a feed consisting partly or entirely of solid metal such as scrap. This gives rise to two significant differences in the slag…
Get Price5 Friday, October 11th, 2019 Technical visit Please note that the time schedule is indicative. Since the visit will take place outside the city of Thessaloniki, there is the possibility of slight variations (±30 minutes), due to unforeseen circumstances, such as traffic delays etc.
Get PriceObservations •nd EAF slag are capable to remove significant amounts of P from wastewater, even on BOF a long terms. • Attainment of the target value of 2 mg P/liter in the outlet is a realistic target. • Removal efficiency is improved by • longer contact time of wastewater and slag, • higher pH (pH 8,5 instead of 8,0), • higher temperature (summer instead of winter),
Get PriceAbstract: The effect of microwavesupported leaching of electric arc furnace (EAF) slag by ammonium salts was investigated to improve calcium leaching ratio for CO2 mineral sequestration process. The results show that the calcium leaching ratio from EAF slag at the constant temperature in the
Get PriceAPPLICATION OF ELECTRIC ARC FURNACE SLAG ... Slag from the steel mills was used as artificial fertilizer only if it came from the processes that used phosphorous pig iron as raw material to produce steel (so called Thomas slag). The increase of steel mill slag was slow due to the high iron content
Get PriceToday, 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 …
Get Priceleaching ratio from electric arc furnace (EAF) slag, this paper proposes the methods of assisting the calcium leaching in a microwave field and proves the possibility of improving calcium extraction efficiency from EAF slag, and the optimization of the process was also studied. 2. Experimental Procedure
Get PriceElectric arc furnace slag. Electric arc furnace slag is produced during the manufacture of crude steel by the electric arc furnace (EAF) 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.
Get PriceEAF steel slag as a soil amendment and plant fertilizer by testing bioavailability of sorbed P and quantities of P released to surface runoff; 3) To elucidate the principal mechanisms responsible for the removal of P in EAF slag filters when used for the treatment of dairy effluent.
Get Priceof slags from different routes can be identifi ed: BF slag, BOF slag, EAF slag and Secondary Steelmaking Slag. The slagging agents with fluxes, such as limestone, dolomite and sil ica sand, are added into BF or steelmaking furnaces in order to remove impurities from ore, scrap and other ferrous charges during smelting.
Get PricePDF | On Jan 1, 2011, Lateef K. B. and others published CHARACTERIZATION OF MALAYSIA EAF SLAG FOR EFFECTIVE UTILIZATION AS AGRICULTURAL FERTILIZER
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