recycling slag iron

  • Smelting - Wikipedia

    Smelting is a process of applying heat to ore in order to extract a base metal.It is a form of extractive metallurgy.It is used to extract many metals from their ores, including silver, iron, copper, and other base metals.Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind.

  • Types of iron and steel slag : NIPPON SLAG ASSOCIATION

    Iron and steel slag refers to the type of metal manufacturing slag that is generated during the process of manufacturing iron and steel products. The term "slag" originally referred to slag produced by metal manufacturing processes, however it is now also used to describe slag that originates from molten waste material when trash and other ...

  • 3 Iron Unit Recycling - Department of Energy

    3 Iron Unit Recycling On a weight basis, steel is the most recycled material in use today (Figure 3-1). The 70 million net tons of steel recycled in 2000 were used to produce about 112 million net tons of new steel in the United States.

  • 88 IRON AND STEEL SLAG - USGS

    88 IRON AND STEEL SLAG (Data in million metric tons unless otherwise noted) Domestic Production and Use: Ferrous slags are coproducts of the making of iron and steel and, after cooling and processing, are sold primarily to the construction industry.

  • ArcelorMittal honored for slag recycling effort ...

    Oct 24, 2017· A slag recycling project at the Ostrava, Czech Republic, ArcelorMittal steel mill has been honored by that nation’s Ministry of Industry and Trade through its “Transforming waste into resources” competition. ArcelorMittal’s Jitka Halamová received an award presented at the Czech Senate in Prague in mid-October 2017.

  • Dust and sludge processing - Harsco M

    Dust and sludge by-products from steelmaking are a hard-to-solve waste problem for the steelmaker as they require costly processing before they can be recycled.

  • Slag: From By-product to Valuable Construction Material

    Recycling slag minimizes waste and disposal costs, reduces energy use, extends furnace life, and lowers the amount of additives needed to make slag. The concerns with slag recycling are that first, because slag can contain environmentally hazardous materials, it must be analyzed for elemental composition before reuse.

  • Steel Slag - Material Description - User Guidelines for ...

    This nonmetallic slag material can either be crushed and screened for aggregate use (steel slag aggregates), or sintered and recycled as flux material in the iron and steel furnaces. Steel slag aggregates generally exhibit a propensity to expand.

  • RECYCLING OF STEELMAKING SLAG - researchgate.net

    The steelmaking slag containing high phosphorus (1-3 % P 2 O 5) is not possible to be used in blast furnace, as all the phosphorus will report to iron increasing the refining load in steelmaking.

  • Steel slag recycling - Harsco M

    The steelmaker benefits from slag recycling by avoiding the cost of landfill. The community benefits, too. Slag is a man-made mineral, therefore its use as an aggregate in place of a natural aggregate product avoids the environmental footprint from quarrying. Steel slag services. Slag …

  • Industrial uses of slag—The use and re-use of iron and ...

    Industrial uses of slag—The use and re-use of iron and steelmaking slags R. DIPPENAAR Steel Institute, University of Wollongong, Northfields Avenue, NSW, Australia 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

  • Recycling and environmental issues of metallurgical slags ...

    Roughly BOF slag, EAF slag and SMP slag can be defined as steel slags. Reviewing the past, utilization of ironmaking slag has a long history. The broken slag from ironmaking was already REUTER, M., XIAO, Y., and BOIN, U. Recycling and environmental issues of metallurgical slags and salt fluxes. VII International Conference on Molten

  • Steel slag in China: Treatment, recycling, and management ...

    1. Introduction. Steel slag is the oxidized material that is generated when lime, dolomite, and other auxiliary materials are added, and oxygen is blown onto the pig iron produced by a blast furnace to remove carbon (C), phosphorus (P), sulfur (S), and other components to produce crude steel in a basic oxygen furnace (BOF).

  • 10th EUROPEAN SLAG CONFERENCE

    Markets and best practices (sourcing and logistics, best practices for timely and effectively recycling and resource efficiency) Research and innovation (characteristics of slag and slag based products, updated studies, research and demonstration projects, new techniques) The conference language is English.

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

    Slag is a mainly non-metallic by-product that is made up of silicates, alumina silicates, calcium aluminum silicates, and iron oxides (Joulazadeh and Joulazadeh, 2010). During the BOS process a proportion of the molten iron cannot be recovered so elemental iron is often observed in the slag (Yildirim and Prezzi, 2011). Slags can be classified ...

  • Promoting Recycling || KOBE STEEL, LTD.

    Recycling iron and steel slag. ... We have also introduced a range of measures aimed at reducing waste and promoting recycling at our Takasago Machinery Center, which manufactures compressors and other industrial machinery. As a result, we achieved a recycling rate of 97.9% for fiscal 2011.

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

    Jul 18, 2013· AbstractTraditionally, 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 tonne (mt) of blast …

  • RECYCLING OF STEELMAKING SLAG FROM ELECTRIC ARC …

    RECYCLING OF STEELMAKING SLAG FROM ELECTRIC ARC FURNACE Ľ MIHOK1, K.SEILEROVÁ , D.BARICOVÁ Technical University, Faculty of Metallurgy, Letná 9, Košice, Slovakia SUMMARY The paper presents results of research of demetallized EAF slag recycling into charge of electric arc furnace. Effects of recycling on steelmaking process parameters,

  • UDC 669 . 054 . 82 : 669 . 184 . 244 . 66 Processing and ...

    2. General Condition of Iron/Steel Slag 2.1 How iron/steel slag is produced As a by-product of the manufacture of steel from iron ore, iron/ steel slag originates from veinstone that is contained in the raw ma-terials (iron ore, coal, coke, etc.) and the flux that is added in the steelmaking refining process for removal of impurities (Si, P, S ...

  • Recycling of BOF steelmaking slag | Industrial Efficiency ...

    Recycling of BOF steelmaking slag It will also divert the residual non-iron bearing fraction into a feedstock for the manufacture of acid mine drainage (AMD) neutralizing agent. In this project, technologies are being developed to separate iron from the BOF slag and prepare those iron …

  • Iron-process recycling of iron slag - YouTube

    Sep 30, 2012· Iron-process recycling of iron slag Jacqueline Sabrina. Loading... Unsubscribe from Jacqueline Sabrina? ... Iron slag recycling machine for sale,equipment for crushing: ...

  • Carbide Slag Recycling Solution - topmie.com

    A. High-efficiency recovery technology is used to enrich and utilize the bottom-flow slag ferro-iron particles,to design an automatic sorting program to replace the labor-intensive manual flushing and recycling method so as to reduce labor intensity and effectively prevent potential safety hazards;

  • Concrete aggregate : Iron and steel slag products : NIPPON ...

    Iron and steel slag aggregate is an industrial product that is manufactured under extensive quality management, and contains no organic impurities, clay, shells, or similar materials. For both fine particles and course particles, the chemical composition is completely uniform.

  • Iron & Steel - Business Recycling

    Steel recycling generates a small water impact. This impact is due to steel production from sources generating blast furnace slag which in turn is used in concrete production as a substitute for cement. When recycling is undertaken, this process no longer occurs, so concrete production must revert to cement in place of blast furnace slag.

  • iron slag recycling - Feldspar Crusher Sales - XSM machinery

    iron slag recycling. iron slag recycling XSM excellent mining crushing machinery products or production line design, the company is committed to building the Chinese brand mine crushing and processing machinery, mainly crusher, mill, sand making our products (iron slag recycling) in more than one hundred of the worldsales of countries and regions.

  • Slag recycling process Scrap - YouTube

    Feb 01, 2017· New technology of iron recovery from slag Make additional profit up to $2.5 mln per year! We transform steelworks waste from headache into incom generating asset. Unique metal recovery technology ...

  • Slag and ash: Machines for recycling incineration ...

    slag & ash Making the potential for recyclable material in incinerator and foundry residue usable for value creation. Grate ash from waste incinerator plant and slag from metallurgical smelting processes contain significant proportions of iron and non-ferrous metals that today can be efficiently recovered.

  • SLAG - IRON AND STEEL - ibm.nic.in

    SLAG - IRON AND STEEL 16 Slag - Iron and Steel S lag is a by-product generated during manufacturing of pig iron and steel. It is produced by action of various fluxes upon gangue materials within the iron ore during the process of pig iron making …

  • Blast Furnace Slag - Material Description - User ...

    Air-Cooled Blast Furnace Slag. Crushed ACBFS is angular, roughly cubical, and has textures ranging from rough, vesicular (porous) surfaces to glassy (smooth) surfaces with conchoidal fractures. There can, however, be considerable variability in the physical properties of blast furnace slag, depending on the iron production process.

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

    principle, all slag can be recycled and the phosphorous extracted to produce fertiliser. This development is of particular significance since the supply of low-phosphorous iron ores is diminishing at an ever increasing rate. Keywords: Slag, Environment, Iron, Steel, Recycling, Blast furnace, Steelmaking, Ladle metallurgy, Slag splashing ...

  • Selfrag introduces slag recycling system - Recycling Today

    Jan 08, 2015· Selfrag AG, a maker of high-voltage fragmentation equipment, has developed a process for the commercial recycling of incinerator slag. The company, headquartered in Kerserz, Switzerland, will install its first system at SAIDEF’s facility in Posieux, Switzerland. The installation at SAIDEF, a …

  • Slag - Wikipedia

    Slag from steel mills in ferrous smelting, on the other hand, is designed to minimize iron loss and so mainly contains oxides of calcium, silicon, magnesium, and aluminium. Any sandy component or quartz component of the original ore automatically carries through the smelting process as silicon dioxide.

  • Slag/Dross Recovery- - Metalcess

    The commonly-seen slag/dross/residue includes copper dross, lead dross, tin slag, zinc leaching residue, antimony/arsenic dross, cadmium residue/cake, sulfur residue/cake, vanadium slag, nickel slag, iron tailing and iron bearing red-mud waste.Metalcess is a professional company offering metal extracting/ recovery/ recycling solutions. We have rich experience in slag treatment.

  • Steel and iron slag - European Recycle

    • ELETRIC ARC FURNACE SLAG: is produced within the EAF during the production of steel. This slag contains low percentage of amorphous silica and high content of FEO and P2O5 and consequently has lower basicity and pozzolanic activities in comparison with Blast Furnace Slag (BFS).