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PDF THE USE OF BASIC OXYGEN STEEL FURNACE SLAG BOS

The uses of byproducts such as blastfurnace slag and steel slag electric arc furnace slag and basic oxygen steel (BOS) slag, and ground granulated blastfurnace slag have long been established in a number of applications in the civil engineering industry. However, the use of ground BOS slag fines in the area of soil stabilization has not been fully investigated and developed despite having ... Air-cooled basic oxygen steel slag (BOS) Ground granulated blast furnace slag (GGBS) Granulated blast slag (GBS) Electric arc furnace carbon steel slag (EAF) ... The molten slag and iron collect at the hearth at the bottom of the furnace. The iron and slag are tapped (removed) together at regular intervals, held in a trough to allow ...

Basics of slag production Article on the slag industry

Basic oxygen furnace slag Basic oxygen furnace slag - BOS (also called LD-converter slag)is formed during the conversion of hot metal from the blast furnace into steel in a basic oxygen furnace In this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen . for the basic-oxygen-furnace steelmaking process. In the BOF process, molten iron is charged into a basic-oxygen furnace together with steel scraps and fluxing agents (lime or dolomite) to produce steel. The steel slag that is a by-product of the BOF steelmaking process is known as basic-oxygen-furnace slag. In the EAF process, recycled steel

Soil Stabilization Using Basic Oxygen Steel Slag Fines

Feb 25, 2016 Basic Oxygen Furnace (BOF) steel making or Basic Oxygen Furnace Steelmaking (BOS) or Linz-Donawitz-Verfahren steelmaking or the oxygen converter process is a method in which both molten pig iron and steel scrap are converted into steel with the oxidizing action of oxygen blown into the melt under a basic slag. Oct 27, 2011 Steel Making Slag . Basic Oxygen Steel Slag (BOS) and Electric Arc Furnace Slag (EAF) Both BOS and EAF slag are very similar in their basic properties and are generally used in the same applications, with the exception of but a few. The main difference highlighted in the section by Lewis Juckes, is the lime/ silica ratio.

Basic Oxygen Furnace Steelmaking Steel Technology

Oct 26, 2011 Abstract. Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladle-furnace steel Steel furnace slag (SFS) is the co-product of the basic . oxygen steel making process (BOS). The slag is removed from the vessel after the exothermic refinement of molten iron and recycled steel in the presence of fluxes and oxygen. SFS is a co-product of the conversion process of molten iron . to steel in basic oxygen steelmaking within an ...

M3DBOS Basic Oxygen Furnace steeluniversity

Nov 06, 2019 India is the worlds third largest steel producer with a production of 97.8 million tonnes in 2017. Steel slag is obtained as a by-product from steel-making industries during the conversion of iron to steel. Steel slag possesses favorable angularity and strength properties. This study aims to utilize basic oxygen furnace (BOF) steel slag as coarse aggregate for open graded asphalt courses ... Jul 16, 2021 2.1 Slag. Three different samples of basic oxygen steelmaking (BOS) slag were used in the study and were collected from Tata Steel, Port Talbot, South Wales, SA13 2NG. On site, BOS slag is sorted into two regimes using vibrating screens (45 mm and 5-10 mm) before being stored as piles . The measurement in the slag description refers to the ...

The Basic Oxygen Steelmaking BOS Process

Slags originate from various stages in the iron and steel making process, e.g. blast furnace, converter, basic oxygen furnace/basic oxygen steelmaking (BOF/BOS), electric arc furnace, or ladle. Slag has a double role it permits removal of the gangue and allows exchange reactions with the liquid metal, permitting control of the process to keep ... refining pig iron and steel scrap, with a resultant slag by-product. The basic oxygen steel (BOS) process uses oxygen blown into a steelmaking vessel charged with molten pig iron creating exothermic reaction, to produce large quantities of BOS slags at steelworks at Port Kembla (NSW) and Whyalla (SA).

Technical Note TN 009 Steel Furnace Slag Aggregate

Oct 27, 2011 In tonnage terms, blast furnace slag is at present the main type followed by slags from the Basic Oxygen Steelmaking (BOS) and Electric Arc Furnace (EAF) processes. Various other processes such as external desulphurisation of steel may generate significant amounts of slag at some plants but overall they are only a small proportion of the total. Feb 13, 2017 Effect of Retained BOS Slag on Refractory Wear. This research will provide a fundamental understanding of the effects of retained slag practice on Basic Oxygen Furnace (BOF) refractory wear. BOF steelmaking remains the predominant process worldwide. While there has been much work carried out on the effects of BOS slag composition on carbon ...

Slag product applications Article on the slag industry

Steel slag is a by -product obtained either from the conversion of iron to steel in basic oxygen furnace or by the melting of scrap to make steel in electric arc furnace. Steel slag is defined by the American Soc iety for Testing and Materials (ASTM) as a non -metallic product, consisting essentially of levels. In terms of quantities, LD slag (aka Basic Oxygen Furnace or BOF slag) ranks second 1-4, with typical production percentages fluctuating around 10-20% by weight of steel outputs. The composition of the LD steel slags limits to some extent their re-use within the integrated process.

ASI Effect of Retained BOS Slag on Refractory Wear Steel

The BOS (Basic Oxygen Steel Making) process utilises the molten iron from the blast furnace with the addition of scrap steel and fluxes. These fluxes (burnt lime or dolomite) are fed into a vessel and a lance injects oxygen creating a reaction between the molten iron, fluxes and scrap to create steel and steel slag. Description Estimated time 0.50 hours The purpose of the Basic Oxygen Steelmaking (BOS) process is to refine the hot metal produced in the blast furnace into raw liquid steel, which may be subsequently refined in the secondary steelmaking shop. The main functions of the Basic Oxygen Furnace (BOF) are to decarburise and remove phosphorus from

QUICK REFERENCE GUIDE 3 2014 Steel Furnace Slag

May 14, 2011 The Basic Oxygen Steelmaking process differs from the EAF in that it is autogenous, or self-sufficient in energy. The primary raw materials for the BOP are 70-80% liquid hot metal from the blast furnace and the balance is steel scrap. These are charged into the Basic Oxygen Furnace (BOF) vessel. Oxygen (99.5% pure) is blown into the BOF ... 2. Waste you can use and codes. You must only use the slag waste from steel-making method basic oxygen steelmaking (BOS) electric arc furnace (EAF) - including carbon steel EAF and high alloy EAF