intensity of steelmaking slag india

2020-10-22T15:10:54+00:00
  • (PDF) Steel Slag Utilization — Overview in Indian Perspective.

    Current total productions of steel slag in India, are around 12 million tonnes per annum (Indian Minerals Yearbook, May 2016), which is far behind the developed countries.

  • Get Price
  • steel FACTS

    craftsmen in southern India were using crucibles to smelt wrought ... of steelmaking slag is used to produce cement and materials for . road construction. The rest of the ... The average energy intensity per tonne of steel produced has dropped from 50 GJ/t in .

  • Get Price
  • Direct mineral carbonation of steelmaking slag for CO 2 ...

    Dec 18, 2015  Steelmaking slag (SS) is one of the major by-products obtained from steel plants. In India, steel production has grown with a rate of 10 % from the year 2001 to 2011. The annual steel production is about 72.2 MT for the year 2011 and the corresponding slag generation is 18 MT.

  • Get Price
  • Steelmaking Slag – IspatGuru

    Apr 12, 2013  Issues connected with steelmaking slag. Expansion of steelmaking slag – Lime (CaO) and other minerals are used as the flux for steel refining. Since the melting point of pure lime is as high as 2,572 deg C, it does not melt during the steelmaking in BOF or

  • Get Price
  • Energy Environment Management in Steel Sector Ministry ...

    Iron Steel Slag Utilization. ... Government of India has submitted India’s Intended Nationally Determined Contributions (INDCs) to reduce the emissions intensity of its GDP by 33 to 35 percent by the year 2030 from the level of the year 2005. Accordingly, Ministry of Steel has submitted INDCs for iron and steel in sector to MOEFCC to ...

  • Get Price
  • Steelmaking Slag - an overview ScienceDirect Topics

    Apr 04, 2012  Ironmaking and steelmaking slags are inevitably generated as a by-product from ironmaking and steelmaking processes. Main components of the slags are CaO, SiO 2, Al 2 O 3, MgO, and iron oxides, and the compositions of slags depend on the process.In the case of Japan, three types of slags, namely BF slag, BOF slag, and EAF slag are mainly produced, which amount is shown in

  • Get Price
  • Tata Steel - Natural capital

    Tata Steel Jamshedpur is the Indian benchmark for CO 2 emission intensity at 2.29 tCO 2 /tcs and energy intensity at 5.67 GCal/tcs for steel production through Blast Furnace -

  • Get Price
  • Properties and Uses of Steelmaking Slag – IspatGuru

    Nov 14, 2018  The compressive strength of concrete using steelmaking slag as fine aggregates is around 1.1 to 1.3 times of common concrete. Further, steelmaking slag concrete shows similar fire resistance to the river aggregate mixture up to 400 deg C, and much improved fire resistance at high-temperature ranges.

  • Get Price
  • Steelmaking Process - an overview ScienceDirect Topics

    During the steelmaking process, fluxes that consist of lime (CaO) or dolomitic lime, with iron and scraps, are charged to the furnace.There is a certain amount of free lime (f-CaO) in steel slag. Free lime, with a specific gravity of 3.34, can react with water to produce Ca(OH) 2, with a specific gravity of 2.23, which results in volume increase (Fig. 9.1).

  • Get Price
  • Pathways to decarbonisation episode two: steelmaking ...

    For now, we note that the major steelmaking regions of China, Europe, India, and Japan are on different decarbonisation trajectories due to variations in domestic policy, their steel trade positions, the age of their blast furnace fleets, differential access to cheap renewable energy and varying demand for new capacity and affordable steel.

  • Get Price
  • steel FACTS

    craftsmen in southern India were using crucibles to smelt wrought ... of steelmaking slag is used to produce cement and materials for . road construction. The rest of the ... The average energy intensity per tonne of steel produced has dropped from 50 GJ/t in .

  • Get Price
  • (PDF) Steel Slag Utilization — Overview in Indian Perspective.

    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 ...

  • Get Price
  • Tata Steel - Natural capital

    Blast furnace slag and steelmaking (LD) slag utilisation: Annually, Tata Steel handles ~17 MnTPA of by-products, which are converted and sold across 20+ product categories. The key solid waste generated during an integrated steel plant operation are the blast furnace and LD slag, which, if not utilised would require to be stored in engineered ...

  • Get Price
  • Direct mineral carbonation of steelmaking slag for CO 2 ...

    Dec 18, 2015  Steelmaking slag (SS) is one of the major by-products obtained from steel plants. In India, steel production has grown with a rate of 10 % from the year 2001 to 2011. The annual steel production is about 72.2 MT for the year 2011 and the corresponding slag generation is 18 MT.

  • Get Price
  • SYNTHETIC SLAG PLANT - Engineers India Research Institute

    Synthetic slag practice is normally used to obtain clean steels and also for the desulphurization of the liquid steel. Secondary steelmaking is a critical quality control step between the primary steelmaking and the continuous casting of the liquid steel. A key feature for success with the secondary steelmaking processes is the slag control.

  • Get Price
  • NPTEL :: Metallurgy and Material Science - Steel Making

    Module Name Download Description Download Size; Steelmaking Fundamentals: references: references of all lectures: 199: Steelmaking in India: FAQ: Faq of the lecture42

  • Get Price
  • Densities and Viscosities of Slags – Modeling and ...

    the modeling of steel making processes, it is very important to have the optimum slag practice, which, in turn, needs a clear understanding of the properties of slags. The slag properties are commonly divided into two parts, viz. the thermochemical properties and the thermophysical properties. The former comprises of the integral

  • Get Price
  • Steel industry co-products

    Previously landfilled, slag is now recognised as a marketable product. The worldwide average recovery rate for slag varies from over 80% for steelmaking slag to nearly 100% for ironmaking slag. While slag use is well established, there is still potential in many regions to increase the ratio used, particularly

  • Get Price
  • Thermodynamic Assessment of Steelmaking Practices for the ...

    Mar 21, 2020  FactSage has become one of the most important modeling tools in simulating the high-temperature metallurgical processes. The usefulness of the FactSage has been demonstrated in this work using several examples of steelmaking processes. Primary steelmaking (basic oxygen furnace) simulation was done with the available process data, and process charts similar to the standard ones

  • Get Price
  • Steelmaking - Wikipedia

    Steelmaking has existed for millennia, but it was not commercialized on a massive scale until the late 14th century.An ancient process of steelmaking was the crucible process.In the 1850s and 1860s, the Bessemer process and the Siemens-Martin process turned steelmaking into a heavy industry.Today there are two major commercial processes for making steel, namely basic oxygen steelmaking, which ...

  • Get Price
  • Basics of slag production - Article on the slag industry ...

    Oct 27, 2011  Typically the density is relatively low, closer to that of blast furnace slag than steelmaking slag, which can influence its suitability for certain markets. About the author Lewis Juckes graduated from the University of Natal in 1963 and worked as a geologist during

  • Get Price
  • Possible Uses of Steelmaking Slag in Agriculture: An

    Steelmaking slag deriving from BOF process (using the Linz-Donawitz (LD) converter) comes from the pig iron refining process, wh ich converts molten pig iron and steel scraps into high quality steel. Most slags from steel pl ant derive from this pr ocess, with an average of 150-200 kg of slag generated per tonne of st eel produced.

  • Get Price
  • High Value added Refractories for high Quality Steelmaking

    super-clean steel treatment intensity is the key for success. Therefore in modern steel making all kind of treatment facilities are assembled to process routes, as shown in Figure 3 below [4]. Figure 3: Steel Product Quality Improvement by Treatment Intensity Increase [4]

  • Get Price
  • Steel making - SlideShare

    Jan 09, 2013  As [% O] increases with (aFeO) in slag and [% O] decreases with [% C] in the bath. it follows that the iron oxide contents of the slag increases with decreasing carbon in steel during refining. Hence there is a general trend in the variation of slag composition with the carbon content of the metal. For a given total iron oxide in a slag, a ...

  • Get Price
  • steel FACTS

    craftsmen in southern India were using crucibles to smelt wrought ... of steelmaking slag is used to produce cement and materials for . road construction. The rest of the ... The average energy intensity per tonne of steel produced has dropped from 50 GJ/t in .

  • Get Price
  • Petcoke Use in India’s Iron and Steel Industry

    in ash/slag generation) and a net reduction in energy intensity by a little over 1 per cent (Indian Steel Association 2019). This translates to a reduction in the production process’s CO 2 emission intensity by about 2 per cent. The impact on SO 2 emissions is, however, largely dependent on the sulphur content of the petcoke utilised.

  • Get Price
  • Measuring the impact of sustainable policies 6 Environment

    intensity for NatSteel was 0.459 tCO2/tcs. The energy intensity of steelmaking at NatSteel Holdings was the lowest ever at 1.613 GCal/tcs and the total energy consumed for steelmaking was 1,233,233 GCal. Environment Management Systems (EMS) All of Tata Steel’s manufacturing sites and raw material locations in India have implemented environmental

  • Get Price
  • Effect of MgO and Al2O3 variations in oxygen steelmaking ...

    3 VARIATIONS IN OXYGEN STEELMAKING SLAG 105 Introduction Production of low phosphorus steel (0.06–0.015 per cent ... intensity of bottom stirring, lance height, oxygen flow rate, ... Indian Institute of Technology, Kanpur, India

  • Get Price
  • Densities and Viscosities of Slags – Modeling and ...

    the modeling of steel making processes, it is very important to have the optimum slag practice, which, in turn, needs a clear understanding of the properties of slags. The slag properties are commonly divided into two parts, viz. the thermochemical properties and the thermophysical properties. The former comprises of the integral

  • Get Price
  • steel making slag iron magnetic field intensity in us

    steel making slag iron magnetic field intensity in us; ... Processing of steel making slag - Google ... 19 Jun 2014 ... A system for processing slag material from a steelmaking process ... 12/898,276 filed Oct. 5, 2010, which is a Continuation-in-Part of U.S. patent application Ser. ... Blast furnaces are generally utilized to reduce iron oxide ...

  • Get Price
  • Steel industry co-products

    Previously landfilled, slag is now recognised as a marketable product. The worldwide average recovery rate for slag varies from over 80% for steelmaking slag to nearly 100% for ironmaking slag. While slag use is well established, there is still potential in many regions to increase the ratio used, particularly

  • Get Price
  • Iron and Steel – Analysis - IEA

    While the energy intensity of steel has gradually fallen since 2009, expanding production from 2009 to 2014 raised total energy demand and CO 2 emissions. After a small decline between 2014 and 2016, energy demand and CO 2 emissions increased in 2017 and 2018, primarily as a result of higher steel production.. Substantial cuts in total energy demand and CO 2 emissions will be needed by 2030 to ...

  • Get Price
  • (PDF) EAF foamy slag in stainless steel production

    not attain such intensity as the reduction of iron oxide. ... Slag foaming during the EAF process can be obtained by the additional formation of CO and CO 2 gas ... and the EAF steelmaking process ...

  • Get Price
  • Basics of slag production - Article on the slag industry ...

    Oct 27, 2011  Typically the density is relatively low, closer to that of blast furnace slag than steelmaking slag, which can influence its suitability for certain markets. About the author Lewis Juckes graduated from the University of Natal in 1963 and worked as a geologist during

  • Get Price
  • Steel making - SlideShare

    Jan 09, 2013  As [% O] increases with (aFeO) in slag and [% O] decreases with [% C] in the bath. it follows that the iron oxide contents of the slag increases with decreasing carbon in steel during refining. Hence there is a general trend in the variation of slag composition with the carbon content of the metal. For a given total iron oxide in a slag, a ...

  • Get Price
  • Thermodynamic Assessment of Steelmaking Practices for the ...

    Mar 21, 2020  FactSage has become one of the most important modeling tools in simulating the high-temperature metallurgical processes. The usefulness of the FactSage has been demonstrated in this work using several examples of steelmaking processes. Primary steelmaking (basic oxygen furnace) simulation was done with the available process data, and process charts similar to the standard ones

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

    LD converter steel making slag is one of the important wastes in all integrated steel plant. The total generation rate of LD slag is 150-180kg/t of crude steel in India (Yadav et al., 2002). The generation per annum is 1.28 MT in SAIL (Basu, 2002) and worldwide generation is

  • Get Price
  • 01-Examples in Material Flow Analysis

    CO2- Intensity and CO2- Inventory in 2010-2013. This CO2- Intensity trend is very peculiar since energy saving and CO2 reduction have been a primary concern over the last years. Therefore, some doubts have arisen about the interferences of CO2- Intensity for 2010 to 2013. The CO2- Intensity and CO2- Inventory Others ~189.8 Steelmaking slag 424.5

  • Get Price