·grades of limestone for use in steel plants shall be as laid down in IS 1387 5 GRADE DESIGNATION Flux grade limestone shall be of the following two grades as given in Table 1 a For steel making — Grade 1 and b For iron making — Grade 2 Table 1 Chemical Composition and Size Requirements Clauses 5 and 7 SI Constituenta Grade 1
·erties make it an essential component in various stages of the production process contributing to the quality and efficiency of the final steel product [2] Some of the main applications of limestone in the iron and steel industry as follows 1 Fluxing Agent Limestone is commonly used as a fluxing agent in the iron and steel industry
Study with Quizlet and memorise flashcards containing terms like what processes are used to make Cast Iron and Steel what are the two main ingredients in steel and cast iron steel or cast iron production requires mixing what three main ingredients together in a furnace and others The pig iron and Limestone flux inside the vessel is
·The limestone which is used by iron and steel industry in bulk quantity is a bedded type sedimentary limestone The two most important constituents are calcite and dolomite Limestone frequently contains magnesium carbonate either as dolomite CO3 or magnesite MgCO3 mixed with calcite
In iron production iron ore coking coal and limestone are also used They are required in the ratio of 4 2 1 In case of steel production manganese is also used to harden the steel
·The principal effect of CaO is to form low melting calcium silicate compounds which act as a bonding agent for the iron oxides during sintering Dwarapudi et al 2011 Dwarapudi et al 2014 Friel and Erickson 1980 Prospects of utilization of waste dumped low grade limestone for iron making A case study International Journal of
The raw materials used to produce pig iron in a blast furnace are iron ore coke sinter and limestone Iron ores are mainly iron oxides and include magnetite hematite limonite and many other rocks The iron content of these ores ranges from 70% down to 20% or less Coke is a substance made by heating coal until it becomes almost pure carbon
·In general the main types of pellets for the purposes of making iron are acid basic and fluxed In order to produce high quality pellets certain additives are important The most common fluxing materials for iron ore pellet production are limestone CaCO 3 dolomite Ca Mg CO 3 2 and olivine Mg 2 SiO 4 but sometimes magnesite MgCO 3
·Limestone Fluorite and Calcium carbide are the materials used as flux in steel making For steel making a superior grade of limestone is required to control slag volume and improve productivity As per Bureau of Indian Standards BIS the specifications
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