4.6 Recall that the extraction of metals involves reduction of ores; 4.7a Explain why the method used to extract a metal from its ore is related to its position in the reactivity series and the cost of the extraction process, illustrated by: heating with carbon (including iron) Edexcel Combined science. Topic 4 - Extracting metals and equilibria
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The basic extraction of metals from ores has the following steps. Grinding and Crushing. The bigger chunks of the ore extracted are crushed and ground in ball mills and crushers. It helps to increase the surface area of the chunks for better chemical actions later. In technical terms, it is called pulverisation.
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The extraction of iron metal from iron ore uses a blast furnace, a huge tower used to extract iron from its ore, hematite. A modern blast furnace operates 24 hours a day and can make approximately 10,000 tonnes of iron per day. Diagram showing the carbon extraction of iron. The process can be broken down into three steps:
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tin processing, preparation of the ore for use in various products. Tin (Sn) is a relatively soft and ductile metal with a silvery white colour. It has a density of 7.29 grams per cubic centimetre, a low melting point of 231.88 °C (449.38 °F), and a high boiling point of 2,625 °C (4,757 °F). Tin is allotropic; that is, it takes on more than ...
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Step 2: Conversion of Fe sulfide ores to Fe oxides through roasting (e.g., roasting of Chalcopyrite ore ) 2CuFeS)2 + 3O)2 Δ 2FeO + 2CuS + 2SO2. Step 3: Smelting: mixing with coke/charcoal and heated at high temperatures (i.e 800 o C) for copper to keep Cu from remaining in sulfide form).
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Abstract Copper production by heap leaching, coupled with solvent extraction and electrowinning (SX-EW), is a well-established technology, with an annual output of about 3.7 million tonnes (Mt) of ...
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Then electrolytic refining of copper is carried out to remove the rest of the impurities present in the ore. The impure copper is made anode and strip of pure copper are made cathode. On passing the current as shown in the diagram, the pure copper from the anode dissolves into an electrolyte. An equivalent amount of copper is deposited on the ...
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The reactivity series shows metals in order of reactivity. The reactivity of a metal is related to its tendency to form positive ions. Iron and aluminium are extracted from their ores in various ways.
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Extracting Copper From its Ores. The method used to extract copper from its ores depends on the nature of the ore. Sulphide ores such as chalcopyrite are converted to copper by …
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This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses. Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or ...
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The metal which can be extracted simply by heating the cinnabar ore in air is:(a) Zn(b) Cu(c) Al(d) Hg. View Solution. Q 4. Cinnabar ( H gS) is a prominent ore of mercury. What is the percentage of mercury are present in 225 gms of pure H gS? (molar mass of H g and S are 200.6 gm mol−1 and 32 gm mol−1 respectively) View Solution.
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Although there are several ores, 80% of the world copper production comes from the ore chalcopyrite (C u F e S 2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction. In the self-reduction step, the reducing species is: View Solution. Q3
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After some time the air is turned off and self reduction of the oxide and sulphide occurs, giving impure blister copper which is 98% - 99% pure. Cu 2 S + 2Cu 2 O → 6Cu + SO 2. Impure copper is further refined electrolytically to obtain 99.95 - 99.99% pure copper by using a solution of Cu (II) sulphate as an electrolyte. Lead. Ore of Lead ...
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In this experiment students carry out an investigation similar to what is conducted within industrial laboratories. Information and directions are provided for the experiment which investigates the recovery of copper …
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File previews. docx, 201.1 KB. Practical instructions for students on how to extract copper metal from its ore.
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Copper ores are generally oxides or sulphides. - In the extraction of copper (I) sulphide, there are mainly five steps involved. But depending on the type of ore used, steps may be reduced to four. - According to the question copper is extracted from its sulphide ore so copper is extracted from copper glance which is copper (I) sulphide ore.
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Refining a metal can be accomplished by electrolysis or zone refining. Certain ores such as those of copper and titanium require special treatment before they can be …
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EXTRACTION OF METALS: COPPER 1. If your syllabus doesn't expect you to be able to describe the extraction of copper from its ores, then ignore this question. In the extraction of copper from chalcopyrite, CuFeS 2, the ore is first concentrated by froth floatation, and then heated in a furnace or series of furnaces with a mixture of silicon dioxide,
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The process by which Zinc is extracted from its ore for the preparation of Zinc metal is known as Zinc mining. The most common ore of Zinc is Zinc blende which is a mineral of Zinc Sulphide. Other ores of Zinc are Calamine, Zincite, etc. Earlier, the extraction of Zinc was a very difficult process due to its low melting point.
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Copper is obtained by self-reduction or self electronation or auto reduction as shown below2C u2O +C u2S → 6C u +S O2 ↑. Uttarkhand PMT 2011: In the extraction of copper from its sulphide ore, the metal is formed by reduction of Cu2O with …
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Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulphide ores such as chalcopyrite are converted to …
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4As + 3O 2 → 2As 2 O 3. The copper pyrite is partly converted into sulphides of copper and iron. 2CuFeS 2 + O 2 → Cu 2 S + 2FeS + SO 2. 2FeS + 3O 2 → 2FeO + 2SO 2. The Process in summary: The concentrated ore is heated stoutly with silicon dioxide (silica) and air or oxygen in a furnace or series of furnaces.
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View Solution. Question 62. (i) Given below are the steps for extraction of copper from its ore. Write the reaction involved. (a) Roasting of copper (I) sulphide. (b) Reduction of copper (I) oxide with copper (I) sulphide. (c) …
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The process of extraction of copper from its ores and preparing copper metal or chemical compounds for use in various goods is known as copper processing. …
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The chief ore of copper is copper pyrite. It yields nearly 76% of the world production of copper. Extraction from copper pyrites. Extraction of copper from copper pyrites involves the following steps. 1. Crushing and concentration. The ore is crushed and then concentrated by froth-floatation process. 2. Roasting.
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This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process. Starting from either open-pit or …
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This process uses aqueous (water-based) solutions to extract and purify copper from copper oxide ores at ordinary temperatures, usually in three steps: heap leaching, solvent extraction, and electrowinning. Heap …
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Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. …
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A metal ore is a rock that contains enough of the metal to make it worthwhile extracting. They have to be extracted from their ores through processes such as electrolysis, using a blast furnace or by reacting with more reactive material. In many cases the ore is an oxide of the metal, therefore the extraction of these metals is a reduction ...
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