Sep 10 2018 · Answered September 10 2018 · Author has 29K answers and 3M answer views The role of coke is to put a smile on the face of the iron worker Actually coke is a form of carbon that is “purified” by removing most of the organic compounds sulfur compounds and heavy metals from coal Coke is a reducing agent and in a blast furnace at high temperature coke is capable of reducing iron ...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
Get PriceWeight: 4-230t
Production Capacity: 0.5-76TPH
Applied Materials: Slag, blast furnace slag, fly ash, cinder, slag, carbide slag, limestone, clay, sand, quartz sand, etc.
Read MoreFeeding size: 480-850mm
Processing capacity: 45-500t/h
Applied material: river pebbles, rocks (limestone, granite, basalt, diabase, andesite, etc.), ore tailings.
Read MoreRotation Speed: 0.1–5 r/min
Production Capacity: 180-10000t/d
Product Specification: Φ2.5×40m-Φ6.0×95m
Read MoreFeeding Size: 200-350mm
Discharging Size: 25-35mm
Production Capacity: 5-150TPH
Read MoreCertification: CE, ISO, SS
Wearing Parts: Molds, roller
Motor Choice: Electric or Diesel
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Related Equipments: two PE600×900 jaw crushers, two impact crushers, two cone crushers, two sand makers and three circular vibrating screens.
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The 200-350t/h sand production line in Turkey is designed in August, 2014, and put into use in October. .
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Gold ore whose types of deposits are diverse and complex is the mineral assemblage of gold. With features of chalcophile affinity and high melting point, the gold ore includes conglomerate type, porphyry type, quartz vein type and volcanic rock type, etc.
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Sep 10 2018 · Answered September 10 2018 · Author has 29K answers and 3M answer views The role of coke is to put a smile on the face of the iron worker Actually coke is a form of carbon that is “purified” by removing most of the organic compounds sulfur compounds and heavy metals from coal Coke is a reducing agent and in a blast furnace at high temperature coke is capable of reducing iron
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Coke is a black powdery substance It is used as a reducing agent The concentrated ore is reduced in a blast furnace with different reactions in different regions
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Iron ore is not normally smelted instead it is reduced in a blast furnace with a mixture of coke limestone The coke burns removing the oxygen from the iron ore and melting the resulting iron
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iii Coke reduces the iron oxide to molten iron metal Also coke when burnt in the blast furnace supplies the heat required for carrying out the extraction of iron from its oxide FeO C
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Iron is extracted from its ore haematite in a blast furnace The ore is fed into the top of the furnace along with coke and limestone The limestone decomposes in the hot furnace forming calcium oxide This reacts with the sandy impurities silicon dioxide to form a slag Archana
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Carbon seems to play a significant role in influencing the brittleness and hardness balance in iron To further reduce the carbon content of pig iron it is melted again with scraps of iron and coke and subjected to the blast of hot air This kind of iron is called Cast
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Extraction of iron is based on the reduction of HAEMATITE Fe 2 O 3 As the CO 2 passes upwards it reacts more coke to form carbon monoxide CO 2 C 2CO heat Formation of CO is an endothermic reaction and the temperature in this region falls to 1100 O C CO is the main reducing agent in the upper portion of blast furnace
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Aug 15 2020 · This page looks at the use of the Blast Furnace in the extraction of iron from iron ore and the conversion of the raw iron from the furnace into various kinds of steel Contributors and Attributions Jim Clark Prof Robert J Lancashire The Department of Chemistry University of the West Indies
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Jul 27 2020 · Blast furnace a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore coke and flux fed into the top Blast furnaces are used to produce pig iron from iron ore for subsequent processing into steel and they are als
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IronIII oxide carbon → iron carbon dioxide 2Fe 2 O 3 s 3Cs → 4Fel 3CO 2 g In this reaction the ironIII oxide is reduced to iron and the carbon is oxidised to carbon dioxide
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Extraction of iron is based on the reduction of HAEMATITE Fe 2 O 3 As the CO 2 passes upwards it reacts more coke to form carbon monoxide CO 2 C 2CO heat Formation of CO is an endothermic reaction and the temperature in this region falls to 1100 O C CO is the main reducing agent in the upper portion of blast furnace
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The air causes the coke to burn producing carbon monoxide which reacts with the iron ore as well as heat to melt the iron Finally the tap hole at the bottom of the furnace is opened and molten iron and slag impurities are drained off
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Carbon monoxide then reduces iron in the ore to iron metal carbon monoxide iron III oxide carbon dioxide iron 3 CO g Fe 2 O 3s 3 CO 2 g 2 Fe l The temperature where the reduction takes place is above 1500 ° C
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Coke is a cheap and readily made reducing agent Iron is not a very reactive metal so because its position in the reactivity series of metals iron can be extracted using carbon in a blast furnace because iron is below carbon iron is less reactive than carbon
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role of coke in extraction of iron igogreenfoundation use of limestone in iron extraction crusherasia extraction 0f vanadium titanium from iron ore extraction and uses of titanium Iron ore and coke and limestone are added to the top and iron and Get More Info i Name the method of refining of metals such as get price
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Oct 23 2018 · Reduction of iron ores The reduction process is the process of reducing iron oxides to iron by carbon monoxide resulting from coke in the blast furnace or by a mixture of carbon monoxide and hydrogen gases water gas resulting from natural gas in the Midrex furnace
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However above 1000 K carbon line lies below the iron line and hence we can use coke as reducing agent above this temperature The following free energy calculation also confirm that the reduction is thermodynamically favoured
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Carbon comes in the form of coal in industrial level it is also known as coke Please do not mistake this coke as the soft drink coca cola or cocaine drug The carbon in the coke reduces the iron IIIoxide to iron But the carbon does not reduce it directly but in several steps I will discuss that later on this blog
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The calcium silicate called slag floats on the liquid iron Since iron is below carbon in the reactivity series iron in the ore is reduced to iron metal by heating with carbon coke It is actually carbon monoxide which does the reducing in the blast furnace
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The slag is lighter than molten iron and to floats on the surface of the iron The formation of prevents the oxidation of iron d Zone of ReductionThis is the most important zone and has temperature of 600700 0 c In this zone Fe 2 O 3 is reduced to iron by co in three steps 3Fe 2 O 3 CO → 2Fe 3 O 4 CO 2
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