heat of formation of blast furnace slag

.
  • Study on heat of hydration for cementitious materials

    / Study on heat of hydration for cementitious materials focus on ground granulated blast Furnace slag Materials Experimentation Maintenance and Rehabilitation Proceedings of the 10th East Asia Pacific Conference on Structural Engineering and Construction EASEC 2010 2006 pp 725 730

    Get Price
  • Dry Granulation of Blast Furnace Slag steel 360

    Liquid slag produced in a blast furnace (BF)is at a temperature of around 1500?C and has a sensible heat of around 400Mcal/ton BF slag is rich in CaO SiO2 Al2O3 and MgO which are similar to the components of Portland cement When this liquid BF slag is cooled fast enough then the solidified slag has a large percentage of glassy phase with high cementations activity and hence it can be used

    Get Price
  • Study on mineralogical crystallization of granulation of

    The process of granulation in blast furnace slag (BFS) by gas quench­ing can effectively recover the waste heat of BFS and improve the value added nature of the BFS byproduct With decreasing temperature BFS crystallizes into melilite anorthite spinel etc Mineral crystallization however is not conducive to the production of amorphous

    Get Price
  • Knergize Formation and Properties of Blast Furnace Slag

    The mechanism of slag formation was established from such data At high temperature these materials SiO2 Al2O3 CaO MgO and FeO melt to form a slag Some heat is required to melt the slag In blast furnace Three types of slags have been identified namely (i) Primary slag due to fusion (ii) Bosh slag and (iii) Final slag in the hearth

    Get Price
  • Chemistry of the Ironmaking by Blast Furnace Process

    Nov 22 2013· blast furnace CO Reaction slag Chemistry of the Ironmaking by Blast Furnace Process Liquid iron (hot metal) is produced in a blast furnace from the burden materials through a series of chemical reactions which are taking place at various levels in a blast furnace

    Get Price
  • Heat recovery from melted blast furnace slag using

    If half of heat of blast furnace slag is to be recovered in Japan the heat will be equivalent to about 1 million tonnes of coal annually The bed size to recover heat is estimated to be 6m×45m(cross sectional area) x 3 m height for 100t slag/hour Cold model experiments were carried out to remove solidified material from the bottom

    Get Price
  • Abstract Dry Granulation of Blast Furnace Slag for Heat

    In summary dry granulation of blast furnace slag allows an environmental friendly and sustainable subsequent processing for one of the last big heat recovery potentials at a modern blast furnace [1] References [1] McDonald I Long E Werner A & Most D (2010) Dry slag granulation The environmental friendly way to making cement

    Get Price
  • importance of slag formation removal in blast furnace

    Blast Furnace Nov 7 2007 materials reactions and the formation and uses of slag A blast Acidic impurities are removed from the iron using lizenithne In the heat of the blast furnace

    Get Price
  • The Extraction of Iron Chemistry LibreTexts

    The air blown into the bottom of the furnace is heated using the hot waste gases from the top Heat energy is valuable and it is important not to waste any The coke (essentially impure carbon) burns in the blast of hot air to form carbon dioxide a strongly exothermic reaction This reaction is the main source of heat in the furnace

    Get Price
  • Heat recovery in dry granulation of molten blast furnace slag

    @article{osti_5610662 title = {Heat recovery in dry granulation of molten blast furnace slag} author = {Tetsuro N and Hiroshi N and Koichi F and Tsukio I} abstractNote = {In a research and development project undertaken jointly between Ishikawajima Harima Heavy Industries Co and Sumitomo Metal Industries Ltd a process has been

    Get Price
  • (642e) Dry Granulation of Blast Furnace Slag for Heat

    Nov 07 2013· for the blast furnace slag energy and as in consequence CO 2 can be saved In summary dry granulation of blast furnace slag allows an environmental friendly and sustainable subsequent processing for one of the last big heat recovery potentials at a modern blast furnace [1] References [1] McDonald I Long E Werner A

    Get Price
  • Study on mineralogical crystallization of granulation of

    The process of granulation in blast furnace slag (BFS) by gas quench­ing can effectively recover the waste heat of BFS and improve the value added nature of the BFS byproduct With decreasing temperature BFS crystallizes into melilite anorthite spinel etc Mineral crystallization however is not conducive to the production of amorphous

    Get Price
  • Contributions of fly ash and ground granulated blast

    Hydration heat evolutions and non evaporable water contents of binders and reaction degrees of fly ash and ground granulated blast furnace slag (GGBS) were tested to investigate the contributions of fly ash and GGBS to the early hydration heat of composite binders at 25°C and 50°C

    Get Price
  • Blast Furnace Slag Cement theconstructororg

    Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properti

    Get Price
  • GCSE CHEMISTRY Extraction of Iron in the Blast Furnace

    Chemistry of the blast furnace Limestone is calcium carbonate (CaCO 3) and it is added to the blast furnace to remove the impurities in the iron ore Calcium carbonate is decomposed by heat in the furnace to give calcium oxide and carbon dioxide This is called thermal decomposition (see examples of other carbonates)

    Get Price
  • Application of Phase Change Materials in Heat Recovery

    Application of Phase Change Materials in Heat Recovery from Blast Furnace Slag Renuka Sahu1 1Department of Mechanical Engineering National Institute of Technology Raipur Raipur Chhattisgarh India Abstract The objective of this paper is to suggest a suitable method for heat recovery from blast furnace

    Get Price
  • The Conditions of Ettringite Formation by the Reaction of

    In this study we investigated the effect of the pH of environmental water in contact with blast furnace slag for ettringite formation by slag leaching experiments and the following results were obtained (1) In air cooled slag granulated slag and mixed slag ettringite formation was not observed by leaching them in pure water

    Get Price
  • Blast furnace Wikipedia

    The blast furnace gas can be used to generate heat So by reducing the constituents in blast furnace gas we can increase the calorific value and can be used to generate heat and rise the temperature in any furnace The gas cleaning system contains two stages the

    Get Price
  • Blast Furnace Slag Material Description User

    Aging of blast furnace slag can delay the formation of yellow leachate in poor drainage conditions but does not appear to be a preventative measure since the discolored leachate can still form if stagnant water is left in contact with the slag for an extended period Processed Blast Furnace Slag The All Purpose Construction Aggregate

    Get Price
  • GROUND GRANULATED BLAST FURNACE SLAG

    Ground granulated blast furnace slag (GGBFS) is designated in ASTM C 989 and consists mainly of silicates and aluminosilicates of calcium GGBFS is divided into three classifications based on its activity index Grade 80 has a low activity index and is used primarily in mass structures because it generates less heat than portland cement

    Get Price
  • Heat recovery in dry granulation of molten blast furnace slag

    @article{osti_5610662 title = {Heat recovery in dry granulation of molten blast furnace slag} author = {Tetsuro N and Hiroshi N and Koichi F and Tsukio I} abstractNote = {In a research and development project undertaken jointly between Ishikawajima Harima Heavy Industries Co and Sumitomo Metal Industries Ltd a process has been

    Get Price
  • NON PORTLAND CEMENT ACTIVATION OF BLAST

    NON PORTLAND CEMENT ACTIVATION OF BLAST FURNACE SLAG Anne Elizabeth Oberlink University of Kentucky [email protected] Right click to open a feedback form in a new tab to let us know how this document benefits you This Thesis is brought to you for free and open access by the Graduate School at UKnowledge

    Get Price
  • GCSE CHEMISTRY Extraction of Iron in the Blast Furnace

    Chemistry of the blast furnace Limestone is calcium carbonate (CaCO 3) and it is added to the blast furnace to remove the impurities in the iron ore Calcium carbonate is decomposed by heat in the furnace to give calcium oxide and carbon dioxide This is called thermal decomposition (see examples of other carbonates)

    Get Price
  • Dry Granulation of Blast Furnace Slag for Energy Recovery

    Aug 09 2014· Dry Granulation of Blast Furnace Slag for Energy Recovery Around 300 kg of liquid slag is produced as byproduct while producing one ton of hot metal in a blast furnace (BF) This slag is at a temperature of around 1500 deg C and has a sensible heat of approximately 400 M Cal per ton

    Get Price
  • Granulated Blast Furnace Slag US Steel

    2(a) Classification of the Chemical Granulated Blast Furnace Slag is considered a hazardous material according to the criteria specified in REACH [REGULATION (EC) No 1907/2006] and CLP [REGULATION (EC) No 1272/2008] and OSHA 29 CFR 19101200 Hazard Communication Standard

    Get Price
.