reuse of ladle furnace slag

  • Recycling of ladle furnace slags - Research Online

    2020-10-13 · Recycling of ladle furnace slags . Abstract . Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or stocked. There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle ...

  • Recycling of ladle furnace slags | Request PDF

    2021-12-7 · Ladle furnace (LF) slag can be used as a replacement to synthetic fluxes owing to its chemical and mineralogical compositions. Valorization of LF slag helps in

  • Recycling Ladle Furnace Slag as Flux in Steelmaking: A ...

    2019-9-16 · Ladle Furnace Slags. Most LF slags contain CaO, MgO, SiO 2, and Al 2 O 3 as major constituents with minor quantities of FeO, MnO, P 2 O 5, and TiO 2.The chemical composition varies depending on operating parameters and killing process. Compositions of LF slags from various plants categorized based on alumina content are listed in Table 3.Mineralogical

  • The recycling and reuse of steelmaking slags — A review ...

    2019-7-1 · During the blast furnace process limestone (CaCO 3) flux is added, to collect the waste products produced: silica (SiO 2), phosphorus pentoxide (P 2 O 5), calcium sulfide (CaS), magnesia (MgO) and alumina (Al 2 O 3).This forms blast furnace (BF) slag, which floats on top of the surface of the hot metal (Peters, 1982).The blast furnace is designed to work in a counter

  • Process for stabilizing and reusing ladle slag - BPI, Inc.

    1999-7-14 · We claim: 1. Method of recovering ladle slag for reuse in a synthetic slag, in which molten ladle slag is discharged onto a substantially planar chill plate, the chill plate having a thermal mass and conductivity which define a heat sink for cooling and solidifying said molten ladle slag into a solid slag without any application of water;

  • Internal Slags Reuse in an Electric Steelmaking Route and ...

    2018-3-8 · In particular, the simulations show that lime and dolime replacement is possible by recovering only Ladle Furnace slag, as a small increase of 3–4% of required electric energy is compensated by a reduction of non-metallic raw materials of about 14–16% without negative effects on steel composition and metallic yield.

  • A way to reduce environmental impact of ladle furnace slag

    2021-12-20 · Ladle furnace slag disintegrates into fine powder during cooling due to phase transformations of di-calcium silicate. This creates an adverse impact

  • Laboratory Evaluation of Ladle Furnace Slag in Unbound ...

    Steel is an inherently never-ending product, in terms of recycling and reuse. The steelmaking process creates an industrial by-product termed as slag. Ladle furnace slag (LFS) is produced at the final stages of the steelmaking process in ladle refining furnaces.

  • [PDF] Industrial uses of slag (the use and re-use of iron ...

    Abstract Traditionally, iron ore has been reduced with coke in a blast furnace and the hot metal product of the blast furnace containing carbon, manganese, silicon, sulphur and phosphorous, was subsequently refined in a steelmaking furnace. During ironmaking as well as during steelmaking, significant amounts of slag are produced. Two decades ago, more than 13 million

  • Use of ladle furnace slag as filler in hot asphalt ...

    2018-2-10 · Ladle furnace slag (LFS) mainly consists of quicklime (about 50%) and silica (20%). 0.25-mm sifted and hydrated LFS guarantees the best asphalt concrete (AC) performance. AC including sieved and hydrated LFS has improved stiffness and strength. AC including sieved and hydrated LFS has an excellent resistance to fatigue.

  • Study of the Incorporation of Ladle Furnace Slag in the ...

    The aforementioned tests define an optimal combination of RAP (90%), ladle furnace slag (10%), water (2.6%), and emulsion (3.3%), which demonstrated maximum values for compressive strength of the dry and post-immersion bituminous mixture. These tests therefore demonstrate the suitability of ladle furnace slag for cold in-place recycling with ...

  • Laboratory Evaluation of Ladle Furnace Slag in Unbound ...

    Steel is an inherently never-ending product, in terms of recycling and reuse. The steelmaking process creates an industrial by-product termed as slag. Ladle furnace slag (LFS) is produced at the final stages of the steelmaking process in ladle refining furnaces.

  • Evaluation of Internal Slag Reuse in an Electric ...

    2017-6-14 · slags reuse in an Italian steelworks. An ad-hoc developed general purpose-monitoring tool was exploited to simulate and evaluate the technical feasibility of two case studies related to the replacement of lime and dolime with ladle furnace slag with or without the partial recovery of EAF slag.

  • A way to reduce environmental impact of ladle furnace

    2013-7-18 · Abstract. Abstract. In the last decades the European steel industry has made continuous efforts to reduce residues and byproducts and to increase recycling in order to reduce its environmental impact. While some steelmaking slags have been widely characterised and, to a certain extent reused, ladle furnace (LF) slag is used in different ...

  • Use of Ladle Furnace Slag and Other Industrial By-Products ...

    Municipal solid waste incineration fly ash (MSWIFA) is a hazardous by-product of waste incineration. The objective of this research is to encapsulate the chloride in MSWIFA and to develop a utilizable construction material using MSWIFA, ground granulated blast-furnace slag (GGBFS), ladle furnace slag (LFS), and gypsum.

  • [PDF] The recycling and reuse of steelmaking slags — A ...

    2019-7-1 · The recycling and reuse of steelmaking slags — A review. Abstract Large volumes of slags are formed as by-products during the refinement of pig iron by basic oxygen steelmaking or electric arc furnace steelmaking. In order to lower the environmental impact of the steel industry and ensure its economic sustainability, there have been ...

  • Characterization of Ladle Furnace Slag from Carbon Steel ...

    2013-9-1 · A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag, and the secondary refining slag. The LF slag is a byproduct from further refining

  • Ladle Furnace Slag in Construction | Journal of Materials ...

    Ladle furnace reducing slag is a common byproduct in steelmaking of carbon and low alloy steels. After air cooling and weathering over several days, this material is completely ground into fine white particles. Physical, chemical, and crystalline characterizations were performed in order to verify possibilities for its direct application as a ...

  • CHARACTERIZATION OF LADLE FURNACE SLAG FROM

    2013-5-29 · The testing has been conducted on ladle furnace slag generated (15 - 20 kg/t liquid steel) during the production of carbon steel in 2010 by EAF process in Steel Mill of CMC Sisak d.o.o., Croatia. Liquid LF slag was, after being poured out of the ladle furnace cooled in the air, after which it was subjected to the following procedures:

  • An Overview of Use of Linz-Donawitz (LD) Steel Slag in ...

    Abstract. Slag generated from basic oxygen furnace (BOF) or Linz-Donawitz (LD) converter is one of the recyclable wastes in integrated steel plants. This paper deals with the present and possible use of LD slag in agriculture. At present, the

  • Use of ladle furnace slag as filler in hot asphalt ...

    Worldwide, recycling of ladle furnace slag (LFS), one of the waste produced by ironmaking and steelmaking industries, actually represents a big challenge which involves different field of material and construction industry. This paper deals with the reuse of

  • [PDF] The recycling and reuse of steelmaking slags — A ...

    2019-7-1 · The recycling and reuse of steelmaking slags — A review. Abstract Large volumes of slags are formed as by-products during the refinement of pig iron by basic oxygen steelmaking or electric arc furnace steelmaking. In order to lower the environmental impact of the steel industry and ensure its economic sustainability, there have been ...

  • Use of Ladle Furnace Slag and Other Industrial By-Products ...

    Municipal solid waste incineration fly ash (MSWIFA) is a hazardous by-product of waste incineration. The objective of this research is to encapsulate the chloride in MSWIFA and to develop a utilizable construction material using MSWIFA, ground granulated blast-furnace slag (GGBFS), ladle furnace slag (LFS), and gypsum.

  • A way to reduce environmental impact of ladle furnace

    2013-7-18 · Abstract. Abstract. In the last decades the European steel industry has made continuous efforts to reduce residues and byproducts and to increase recycling in order to reduce its environmental impact. While some steelmaking slags have been widely characterised and, to a certain extent reused, ladle furnace (LF) slag is used in different ...

  • UG-Mat Steel Slag | Recycled Materials Resource Center

    These different types are referred to as furnace or tap slag, raker slag, synthetic or ladle slags, and pit or cleanout slag. Figure 1 presents a diagram of the general flow and production of different slags in a modern steel plant. The steel slag

  • CHARACTERIZATION OF LADLE FURNACE SLAG FROM

    2013-5-29 · The testing has been conducted on ladle furnace slag generated (15 - 20 kg/t liquid steel) during the production of carbon steel in 2010 by EAF process in Steel Mill of CMC Sisak d.o.o., Croatia. Liquid LF slag was, after being poured out of the ladle furnace cooled in the air, after which it was subjected to the following procedures:

  • An Overview of Use of Linz-Donawitz (LD) Steel Slag in ...

    Abstract. Slag generated from basic oxygen furnace (BOF) or Linz-Donawitz (LD) converter is one of the recyclable wastes in integrated steel plants. This paper deals with the present and possible use of LD slag in agriculture. At present, the

  • Process for regeneration and reuse of steelmaking slag ...

    Slag conditioning agents such as borates may be added during the process of the invention to aid in maintaining fluidity of the bath. At the end of the slag treatment process, the metal phase in the treatment vessel increases to about 6 inches (15.24 cm), and the slag depth diminishes to about 31/2 feet (1.07 m).

  • Ladle Metallurgy – IspatGuru

    2014-4-23 · Ladle Metallurgy. satyendra; April 23, 2014; 1 Comment ; AOD, CAAS-OB, Ladle metallurgy, refining,; Ladle Metallurgy. After tapping of steel from a primary steelmaking furnace such as BOF, EAF or EOF, molten steel for high

  • Ladle refining [SubsTech]

    2012-5-31 · Molten steel in a ladle may be treated (refined) in a device called Ladle Furnace (LF). The ladle is transported to the Ladle Furnace stand where it is placed under a cover equipped with three graphite electrodes connected to a three