Hot air is blasted in from the side to provide oxygen that allows some of the carbon to burn, releasing enough heat to raise the temperature above 1500 o c. Blast furnace practice 91 gcse and igcse chemistry. Mr bean plays around in a chemistry lab causing a big purple explosion. This is called thermal decomposition see examples of other carbonates. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 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. Essentially giant, coneshaped circular stoves, blast furnaces dominate the cityscapes of pittsburgh, youngstown, and birmingham much as religious structures dominated medieval cities.
It is dropped into the top of a blastfurnace along with coke purified coal, almost pure carbon and limestone calcium carbonate. In this gcse chemistry revision video, hazel asks you quick fire questions on the topic of the blast furnace, including the process of extracting iron and the chemical equations you need to learn. Click on a part of the picture below for further information. Blast furnace with images blast furnace, furnace, gcse chemistry. Blasts furnaces are used for smelting during the production of metals such as iron, lead, zinc, and copper. A powerpoint which goes through the stages of the blast furnace, including the equations to go with the stages. Reactions in the lower part of the blast furnace with focus on silicon joel gustavsson doctoral thesis stockholm 2004 department of materials science and engineering. The molten iron is made using the thermit reaction where iron oxide is reacted with aluminium powder. Blast furnace immersive engineering feed the beast wiki. Blast furnace revision including blast furnace story board.
Links revision quizzes revision questions the periodic table index metal quiz. Then you can start reading kindle books on your smartphone, tablet, or computer no kindle device required. A blast furnace is a gigantic, steel stack lined with refractory brick where the concentrated iron ore, coke, and limestone are dumped from the top, and a blast of hot air is blown into the bottom. Blast furnacetheory and practice, volume 1 volume 2 of blast furnace blast furnacetheory and practice, julius h. Blast furnace definition and meaning collins english. It is heated by blowing hot air in at the base of the furnace, through pipes. My cgp guide has things that arent in the kerboodle text book and on bbc bitesize etc, and viceversa. You may not have access to notes, textbooks and other material. Feb 03, 2016 in this gcse chemistry revision video, hazel teaches you about iron manufacturing in a blast furnace, including key balanced equations, raw materials used and removal of acidic impurities. The combined mixture is called the charge iron ore, haematite often contains sand with iron oxide, fe 2 o 3 limestone calcium carbonate coke mainly carbon the charge is placed a giant chimney called a blast furnace. He has published extensively on the metallurgy of armour and weapons, and is the coauthor of the royal armoury at greenwich 1995.
This article is a disambiguation page for blast furnace immersive engineering the following is a list of links to pages that share the same title or have similar meanings. In this gcse chemistry revision video, hazel teaches you about iron manufacturing in a blast furnace, including key balanced equations, raw materials used and removal of acidic impurities. The blast furnace operates as a countercurrent exchange process whereas a bloomery does. Coke, limestone and iron ore are poured in the top, which would normally burn only on the surface. Unlike flexible defences, popular everywhere else in the world, the rigid, articulated, exoskeleton of a suit of armour was a more extravagant and less adaptable means of personal protection. Iron ores are reduced by coke carbon in a blast furnace. May 14, 2017 in this gcse chemistry revision video, hazel asks you quick fire questions on the topic of the blast furnace, including the process of extracting iron and the chemical equations you need to learn. The oxygen must be removed from the ironiii oxide in order to leave the iron behind.
Metal extraction detailed notes and diagrams metal reactivity transition metals more industrial chemistry of metals. On the basis of variation in the temperature, there are four zones where different chemical changes occur. Get free shipping on aqa gcse chemistry for combined science. Edexcel international gcse 9 1 chemistry student book quim 48. B draw a diagram to show the outline of the structure of a blast furnace and mark on it the following labels.
Gcse chemistry extraction of iron in the blast furnace. Extracting iron iron and aluminium gcse chemistry single. Answers the blast furnace reactant purpose formula coke burns to produce heat and reducing agent c iron ore contains iron oxide which is reduced to iron fe 2 o 3 hot air to keep coke burning o 2 n 2 limestone remove impurities as slag caco 3 gridlock answer 1 reactant purpose coke iron ore to keep coke burning remove impurities as slag. Edexcel international gcse 91 chemistry student book sample. Blast furnace definition and meaning collins english dictionary. A rock is a mixture of minerals from which useful substances can be made. Compared to this, elsewhere furnaces up to 5070 m 3 had. These zones have the particular time and temperature ranges for their occurrences, that is to say that it depends on the metal to be heated and melted. In the blast furnace, it is so hot that carbon monoxide can be. The furnace is charged from the top, with our three raw materials. If an internal link led you here, you may wish to change the link to point directly to the intended article. Structures, trends, chemical reactions, quantitative chemistry and.
Middle order metals like iron are extracted by reducing with carbon in the blast furnace. A blast furnace is roughly 50m high, and lined with heatresistant bricks. Blast furnace, coke gas and converter gas for power production. Extraction of iron metallurgy blast furnace and reactions. Iron ore, haematite often contains sand with iron oxide, fe 2 o 3. Strassburger volume 52, parts 12 of metallurgical society conferences. All the three ingredients are crushed into small round pieces and mixed and put on a hopper which controls the input. Calcium carbonate is decomposed by heat in the furnace to give calcium oxide and carbon dioxide.
Santanu chakraborty, in treatise on process metallurgy. The charge is placed a giant chimney called a blast. The hot air blast to the furnace burns the coke and maintains the very high temperatures that are needed to reduce the ore to iron. The furnace is filled at the top with the iron ore oxide. Describes the principles of the blast furnace process and especially the control of the process. On the diagram below of the blast furnace, just click on the labels for a more detailed description.
It is suitable for students of metallurgy as well as. Question 9 blast furnace revision science gcse and a. The haematite the charge is loaded into the blast furnace, along with coke heated coal and limestone. Free revision guides, questions banks and resources. It is suitable for students of metallurgy as well as for blast furnace operators and management. Making iron in the blast furnace a list and describe the four principal raw materials including air which are used in the blast furnace. Extraction of iron 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. I know haematite iron ore is a rock containing iron oxide. Reactions in the lower part of the blast furnace with. Iron is extracted from iron ore ironiii oxide in a blast furnace by heating.
Ores of metals higher in the reactivity series than zinc. Iron, fe, is extracted from its metal oxide in the blast furnace using carbon as a reducing agent. Gcse chemistry extraction of iron using carbon monoxide. To get the free app, enter your mobile phone number. Two worksheets one for foundation students, one for higher. Redox reactions are involved in the extraction of metals from their ores. Igcse chemistry past exams, tutorials, notes and more on nada ak is lecturing. I know making iron from iron oxide is reduction removing oxygen. Blast furnace theory and practice, volume 1 volume 2 of blast furnace blast furnace theory and practice, julius h. Three substances are needed to enable to extraction of iron from its ore. Blast furnace enthusiastically announces its second annual poetry chapbook competition, which officially began july 16, 2015. Oct 04, 2019 the types of blast furnace that are obtainable in the world of today include nonferrous blast furnace, iron and lead blast furnace. This can be used in conjunction with the blast furnace story board.
A blast furnace works by blasting hot air up through the furnace while fuels, limestone, and ore move continuously through the top of the furnace. Use your knowledge of the atomic structure of a number of isotopes to unlock the grid. Hot air is blasted into the furnace causing coke carbon to burn rapidly producing carbon dioxide. Gcse chemistry extraction of iron picture of the blast. Hot air is also blown into the furnace which reacts with the carbon in a highly exothermic reaction, producing much of the heat required to keep the mixture molten. Blast furnaces differ from bloomeries and reverberatory furnaces in that in a blast furnace, flue gas is in direct contact with the ore and iron, allowing carbon monoxide to diffuse into the ore and reduce the iron oxide to elemental iron mixed with carbon. Carefully explain the function of each raw material used. Limestone is calcium carbonate caco 3 and it is added to the blast furnace to remove the impurities in the iron ore. Extracting iron redox, extraction of iron and transition. Like other building types which attract the bechers, it is also an endangered industrial species. Blast furnace gas blast furnace gas is a byproduct of blast furnaces where iron ore is reduced with coke into metallic pig iron. Loop games and works sheet on blast furnace use for extracting iron using carbon. The blast furnace is a large steel structure about 30 metres high. The method used in blast furnaces have been used since the 1500s.
The extraction of iron and a picture of the blast furnace. A blast of hot air is sent through two tuyeres near the bottom of the furnace. To the blast furnace, the following ingredients are added. A blast furnace is a large structure in which iron ore is heated under pressure so that. The blast furnace is the symbol of the steel industry. Blast furnace definition of blast furnace by the free. Chemistry in a blast furnace a great many reactions, of different types, go on inside a blast furnace. Everyday low prices and free delivery on eligible orders.
The types of blast furnace that are obtainable in the world of today include nonferrous blast furnace, iron and lead blast furnace. We will entertain manuscripts from any poet who has not previously been published in hisher own chapbooklength. The blast furnace is around 30 metres high and lined with fireproof bricks. The largest blast furnace in india at that time was of 2000 m 3. Students draw in a diagram of the blast furnace, then fill in the gaps to show the reactions that happen. Hot air is also blown into the furnace which reacts with the carbon in a highly exothermic reaction, producing much of. Blast furnace met michelle henningerainscough then michelle henninger way back in 1990 at state college, pennsylvania, while she was a senior at the pennsylvania state university psu. The thermochemical data of iron oxide redox reactions in various textbooks and. The following questions are about the blast furnace and the production of iron. A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast furnace quick fire questions gcse science revision. If you scroll past the diagram you can read about the blast furnace process. Blast furnace practice 91 gcse and igcse chemistry aqa.
Blast refers to the combustion air being forced or supplied above atmospheric pressure in a blast furnace, fuel, ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air sometimes with. At that time, she may not have imagined that one day, shed be sketching and painting artwork for inclusion in books. Larger blast furnace, use of better prepared burden, recovery of waste energy, and maximum recovery of slag characterize the iron making technology proposed for vsp. Compared to this, elsewhere furnaces up to 5070 m 3 had been built. Blast furnace is a furnace for smelting of iron from iron oxide ores hematite, fe 2 o 3 or magnetite, fe 3 o 4. At that time, she may not have imagined that one day, shed be sketching and painting artwork for inclusion in books for young children. Im pretty sure if they were to ask about the blast furnace, then they would give a lot of the details in the question, for example they might ask for s balances symbol equation, and theyd tell you the reactants, dont you think. The furnace gets its name from the method that is used to heat it. Theory and practice presents theoretical, experimental, and operational evidence about the iron blast furnace as well as a mathematical description of its operation. Iron ores such as haematite contain ironiii oxide, fe 2 o 3. This book focuses on the control of the blast furnace process with respect to thermal control, gas flow control and casthouse operation. It is lined with refractory firebricks that can withstand temperatures approaching 2000 o c.
Blast furnace 2nd annual poetry chapbook competition. Preheated air at about o c is blasted into the furnace through nozzles near its. There are many zones that take place in blast furnace. Preheated air at about o c is blasted into the furnace through nozzles near its base the largest blast furnaces in the uk. These revision notes on the extraction of iron in a blast furnace and the process of steel making and other alloys should prove useful for the new aqa, edexcel and ocr gcse 91 chemistry science courses. In the blast furnace, it is so hot that carbon monoxide can be used, in place of carbon, to reduce the ironiii oxide. This book includes a set of equations that accurately describe stoichiometric and enthalpy balances for the process and which are consistent with observed. Oxygen in the air reacts with coke to give carbon dioxide. In your answer, include two reasons for using coke in the blast furnace.
122 531 839 699 1029 982 1305 962 1387 102 128 143 1394 903 1611 958 617 1030 186 1171 75 520 72 74 494 207 413 739 51 43 1377 1065 567 640 64 1175 1306 1163 1283 1281 204 120 16