Steel Slag And Bf Slag Production 2010

Oct 27 2011· With world steel production now well over a billion tonnes per year the slag that arises from some of the processes involved is a major resource Traditionally it has been used mainly as an aggregate but for some types there are other applications such as a raw material for cement or as a fertiliser In tonnage terms blast furnace slag

In the same way as air-cooled blast furnace slag converter slag is cooled slowly by natural cooling and water spray in a cooling yard It is then processed and used for various iron and steel slag converter applications Approximately 110 kg of slag is generated for each ton of converter steel Electric arc furnace slag

In the production of iron the blast furnace is charged with iron ore fluxing agents usually limestone and dolomite and coke as fuel and the reducing agent The iron ore is a mixture of iron oxides silica and alumina From this and the added fluxing agents molten slag and iron are formed

Steel slag can also be produced by smelting iron ore in a basic oxygen furnace According to methods for cooling molten steel slag steel slag is classified into five types natural air-cooling steel slag water-spray steel slag water-quenching steel slag air-quenching steel slag and shallow box chilling steel slag …

Piles of steel slag a solid waste generated from the iron and steel industry could be seen due to no utility found for the past century Steel slag has now gained much attention because of its new applications The properties of slag greatly influence its use and thus had got varied applications

The lime combines with the silicates aluminum oxides magnesium oxides manganese oxides and ferrites to form steel furnace slag commonly called steel slag Slag is poured from the furnace in a molten state After cooling from its molten state steel slag is processed to remove all free metallics and sized into products

Iron and Steel Slag Market Snapshot In order to stay ahead of the curve in the global iron and steel slag market keen players are seeking out partnerships with original equipment manufacturers OEM in different end-use industries namely building and construction railways fertilizers etc

This metals recovery operation using magnetic separator on conveyor and or crane electromagnet is important to the steelmaker as the metals can then be reused within the steel plant as blast furnace feed material for the production of iron Additional information on steel slag aggregate use in the United States can be obtained from

End use is defined as the use of the mineral commodity in a particular industrial sector or product Iron and steel slag sold or used by producers comprises four types of slag air-cooled iron blast furnace granulated and expanded iron blast-furnace slag combined but data are for granulated only for 2002 03 and steel slag

blast furnace BF slag production ranges from about 300 to 540 kg per tonne of pig or crude iron produced whereas in steel making 150 to 200 kg per tonne of slag is generated per tonne of liquid steel Lower grade ores yield much higher slag fractions SLAG - IRON AND STEEL

An Overview of Utilization of Steel Slag pdf as blast furnace slag BFS and steel SS is found to be in the range of 150-200 kg per ton of steel production The LD slag generated by

pig iron or to control steel contents The production amount of BF slag is approximately 300 kg per ton of pig iron and that of steel-making slag is 100 150 kg per ton of molten steel Overall roughly 40 million tons of iron steel slag is produced in Japan every year 2 2 Characteristics of iron steel slag Iron steel slag is composed mainly

The study on the use of blast furnace slag steel slag and fly ash as raw materials to produce cement clinker has been carried out in the present investigation The burnability of raw meal was determined by the linear shrinkage and free lime content of clinkers sintered at different temperatures The microstructrue and properties of raw meal and clinker were investigated by the means of

Iron and steel slag products are used in a variety of areas where their unique characteristics are put to effective use The majority of the demand for these products comes from the field of cement Approximately 40 of iron and steel slag products and 60 of blast furnace slag are used in cement

This paper presents a review on the sustainable use of steel industry slag SIS in the construction industry for sustainable development This issue also may contribute significantly to attain the sustainable development goal SDG If feasible sector is not determined earlier for the use of SIS for the country like Bangladesh then the unproductive uses will be increased and as well without

Slags can be broadly categorized as ferrous iron steel and non-ferrous copper lead zinc depending on the industry from which they come Non ferrous slags make up only 12 of the total annual production Described below are the main types and uses of slag commercially available in Ferrous Slag products Iron Blast Furnace Slag BFS

Process of slag Generation epa gov During the process of reducing iron ore through coke in a blast furnace blast furnace slag is generated while steel making slag is generated in the process of

steel industries in India CRRI 2010 Steel slag may be used as a land fill cover liner Inga 2010 Ref No-18 Pazhani and Jeyaraj 2010 Ref No-20 studied feasibility of Granulated Blast Furnace slag GBFS for production of high performance concrete Use of steel slag in asphaltic

Production routes for steel Dutch Pavilion at World Expo 2010 John Körmeling There are basically two routes for the production of steel In the Blast Furnace route BF pig iron is extracted from iron ore using coke Slag and blast furnace gas are formed in the blast furnace

and blast furnace slag production Air-Cooled Blast Furnace Slag If the liquid slag is poured into beds and slowly cooled under ambient conditions a crystalline structure is formed and a hard lump slag is produced which can subsequently be crushed and screened Expanded or Foamed Blast Furnace Slag

Iron and steel slag products are used in a variety of areas where their unique characteristics are put to effective use The majority of the demand for these products comes from the field of cement Approximately 40 of iron and steel slag products and 60 of blast furnace slag…

Nov 19 2018· In total between 1 1 5 million tonnes of metallurgical slag were produced at iron and steel plants in Sweden during 2010 This production was distributed among a series of different slag types blast furnace slag LD slag electric arc furnace slag AOD slag ladle furnace slag and slag from desulphurisation

This paper presents a characterization analysis of alkali-activated steel slag The effect ratio of steel slag and ferronickel slag which are the precursor materials on the compressive strength of the alkali-activated materials was investigated The combination of sodium hydroxide solution of 15 moles concentration and sodium silicate was used as an alkaline activator

marketable steel slag remaining after entrained metal removal is thus usually equivalent to about 10 to 15 of the crude steel output Using these ratios and data for U S and world iron and steel production from the American Iron and Steel Institute 2010 p 121 126 U S blast furnace slag production in 2010

Institute 2011 p 121 126 U S blast furnace slag production in 2011 was estimated to be in the range of about 8 to 9 Mt and world output 263 to 328 Mt Similarly U S output of steel slag after metal removal in 2011 was estimated to be 9 to 13 Mt and world output 149 to 223 Mt Estimated production of slag

Blast furnace slag BF slag is produced in ironmaking process and accordingly steel slag is produced in steelmaking process In China liquid pig iron production reached 642 million tonnes by 2011 and 193 million tonnes of BF slag was produced 4 with a generation rate …

kg per ton of pig iron produced and the annual production of blast furnace slag BF slag in Japan exceeds 24 million t all units herein are metric 1 As seen in Fig 1 BF slag is divided into air-cooled slag and granulated slag The former is produced by letting molten slag cool in open pits or yards and the latter by rapidly cooling mol-

May 06 2016· Europe s Biggest Blast Furnace - A colossus being made fit for the future Made in Germany National Slag Association Iron and Steel Slag Products - Duration 3 52 National Slag

and DRI based steel production slags are classified as blast furnace BF and steelmaking slag BF slag is gen-erated during the process of reducing iron ore by coke carbon in a blast furnace Its sources are the gangue content of iron ore and lime content added to adjust the chemical composition of molten slag Steelmaking

The use of slag aggregates from iron and steel production in construction dates back to the Romans who used crushed slag from the crude iron production of that time to build their roads Nowadays slag is still used to build roads However slag use is not limited to roads anymore but slag …