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· The geophysical techniques used in the search for iron ores as in most geophysical mapping are based upon the presence of measurable contrasts of physical properties between the ore minerals and the surrounding rocks The physical properties used principally are magnetism both permanent and induced and density Electrical methods including polarization and
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· physical seperation method of iron mining in extracting iron physical seperation method of iron mining in extracting iron 46 Views consists of gravity dependent methods of separation such as sluice boxes More detailed General Chemistry I FC 09 10 Lab #2 Physical Separation decide what physical separation techniques will best allow them to separate the mixture
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The most common ores of iron are hematite Fe 2 O 3 and magnetite Fe 3 O 4 These ores can extract iron by heating them with the carbon present in the coke Heating coal in the absence of air produces coke Coke is cheap and acts as the heat source and is also the reducing agent for the reaction Hot air is blown into the bottom of the furnace and heated using the hot waste gases from the top at a
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· Fig 1 A typical open pit iron ore mine On the basis of mining methods iron ore mining can be broadly divided into two categories namely manual mining and mechanized mining Large iron ore mines are mechanized mines while manual mining methods are employed in the small mines Manual mining method is normally limited to float ores Mining of reef ore is also being done manually on a
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· It is very important to dress iron ores before reduction as the iron ore dressing improves physical In this stage the reduction of iron oxides to iron is carried out by one of two methods depending on the reducing agent which may be CO gas resulting from coke as a Blast furnace The mixture of CO H 2 resulting from natural gas as in Midrex furnace Reduction by using carbon
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method of extracting iron ore from rocks Posts Related to method of extracting iron ore from rocks So we need the extraction of a pure metal from its ore several physical and chemical methods
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Iron is found naturally in the form of ores that are oxides of the pure metal such as hematite and magnetite The most common of the modern methods used to extract iron from its ores is coke smelting in a blast furnace The development of this technique is largely credited to Abraham Darby who set up his Brass and Iron Works in Shopshire in 1709 which was important in the creation of the industrial era
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· Extraction of Iron from its ores Extraction of iron or its metallurgy is the process of obtaining this metal in a form where it can be put to practical use and this process of extraction consists of three stages Ore dressing Reduction of ores and Iron production
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Extraction of Iron Iron sits below carbon on the reactivity series and so can be extracted by reduction methods Iron ore carbon and limestone are mixed together and fed into the top of the blast furnace and hot air is blasted in at the bottom Carbon monoxide reduces the iron III oxide in the ore to form iron which will melt and collect at the bottom of the furnace where it is tapped off
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· Iron ore was won by drilling and blasting As mining technology generally developed so did drilling techniques and the explosives used Smith 1990 reported that the Cleveland deposit was associated with a very strong stone roof rock known as dogger allowing mine drivages to be self supporting However he states that in later years where the mining had progressed to the dip this
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Describe how the form in which a metal exists in nature and the method used to extract it are both related to the metal s reactivity Define a native metal and give examples of methods used to separate them Describe the processes of carbon reduction and electrolysis for extracting metals from ore
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The process of the extraction of iron is carried out by the following steps Concentration of ore Calcination or Roasting of ore Reduction of ore Concentration of ore In this metallurgical operation the ore is concentrated by removing impurities like soil etc The process involves the crushing and washing of ore Calcination or Roasting of ore The concentrated ore is now heated in the
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Introduction to methods of extracting metals from their ores to be worth exploiting the ore reserve and extract the metal by physical and chemical processes Low grade ores are usually uneconomic to mine and process but high grade ores have a high enough metal content to be worth mining and extracting the metal The metal ore a mineral or mixture of minerals from which economically
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method of extracting iron ore from rocks Posts Related to method of extracting iron ore from rocks So we need the extraction of a pure metal from its ore several physical and chemical methods
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The process of the extraction of iron is carried out by the following steps Concentration of ore Calcination or Roasting of ore Reduction of ore Concentration of ore In this metallurgical operation the ore is concentrated by removing impurities like soil etc The process involves the crushing and washing of ore Calcination or Roasting of ore The concentrated ore is now heated in the
Get PriceIron ores such as haematite contain iron oxide The oxygen must be removed from the iron oxide to leave the iron behind Reactions in which oxygen is removed are called reduction reactions Carbon is more reactive than iron so it can push out or displace the iron from iron oxide Here are the equations for the reaction iron oxide carbon
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· Mining of Gold 1 Placer mining Extracting of gold involving the use of water or dredging 2 Panning It is a method of getting gold through separating gold from other materials by using wide shallow pans filled with sand and gravel that may contain gold 3 Slucing Using a man
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· Once the ores have been excavated the metals themselves must then be extracted from the ore a process that depends on the metals reactivity according to BBC Highly reactive metals such as aluminum for example can be isolated using an electric current in a technique known as electrolysis Less reactive metals like iron can be extracted with reduction where oxygen is removed from the
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Redox reactions are involved in the extraction of metals from their ores eg extracting iron by reduction within the blast furnace Transition metals have high melting points and densities form
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ore metal compound separated from bits of sand rocks purified metal compound metal extracted metal chemically separated from other elements 8 The Extraction of Metals •The lower the position of a metal in the reactivity series the easier it is to extract The reactivity series and the method of extracting
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