May 01, 2019· The reduction method depends on the reactivity of the metal. For example, aluminium and other reactive metals are extracted by electrolysis, while iron and other less reactive metals may be extracted by reaction with carbon or carbon monoxide.
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Metals are extracted from ores. An ore is a rock that contains enough of a mineral metal compound for the metal to be extracted from it. Most metals are extracted from an ore by reduction with carbon or by electrolysis.
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Aug 18, 2019· But all these metals react with water with the evolution of H 2 gas. 2Ks+ 2H 2Ol2KOHaq+ H 2gAs a result, these metals cannot be used in hydrometallurgy to extract zinc. Hence, copper can be extracted by hydrometallurgy but not zinc.
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If a metal is less reactive than carbon, it can be extracted from its oxide by heating with carbon. The carbon displaces the metal from the compound, and removes the oxygen from the oxide. This leaves the metal. The table summarises the extraction methods used for different metals.
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The Basics of Copper Mining and Processing. Mined from open pits, copper ore must be crushed as part of the process that occurs between extraction and production. Using todays compact mining equipment, copper ore is extracted from the mine. After the ore is crushed, its roasted, which helps to convert sulfides to oxides.
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So, sodium is too reactive to be obtained by carbon reduction of its oxide and another method must be employed which is called electrolysis. Sodium, like many of the most reactive metals, can be extracted by electrolysis of its molten chloride. This can be done in the 'Down's Cell' shown in the diagram.
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The method used to extract a given metal from its ore depends upon the reactivity of the metal and so how stable the ore is.by reduction with carbon but magnesium can't?for electrical
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Nov 17, 2010· Ores can be used to extract precious metals which in turn can be used for electrical wiring, in the case of copper or as a catalyst, in the case of Haematite, Iron ore
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Apr 13, 2007· Reduction occurs at the cathode and oxidation at the anode. All metals above iron in the reactivity series that is, potassium, sodium,calcim, magnesium and aluminium are extracted by electrolysis. This is because they form too stable compounds that are difficult to reduce using simple reducing agents like carbon monoxide.
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CopperFrom Beginning to End. Copper is a major metal and an essential element used by man. It is found in ore deposits around the world. It is also the oldest metal known to man and was first discovered and used about 10,000 years ago. And as alloyed in bronze coppertin alloy about 3000 BC, was the first engineering material known to man.
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Copper can be extracted from nonsulfide ores by a different process involving three separate stages: Reaction of the ore over quite a long time and on a huge scale with a dilute acid such as dilute sulfuric acid to produce a very dilute copperII sulfate solution. Concentration of the copperII sulfate solution by solvent extraction.
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Metals are extracted from ores. An ore is a rock that contains enough of a mineral metal compound for the metal to be extracted from it. Most metals are extracted from an ore by reduction with carbon or by electrolysis. It's used as a reducing agent.
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This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses. Before you get too bogged down in the extraction of copper, make sure that you need it for whatever syllabus you are using. Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of
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May 02, 2008· So it is electrolyzed in a vat of sulfuric acid at preciselycontrolled voltage, so that the bulk or blistercopper is etched from the anode the positive electrode, so called because that's the electrode all the ANIONS go to and redeposited at the cathode in purer form. Multiple cycles may be necessary for some applications.
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purification of ores such as copper sulfide ore. Electrolysis uses an electrical current to move ions in an electrolyte solution between two electrodes. In copper electrolysis, when a current is applied, positivelycharged copper ions called cations leave the anode positive electrode and move toward the cathode negative electrode.
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Copper is well below carbon less reactive and so can be displaced by carbon from its compounds eg copper oxides or sulfides. However, in practice, modern copper smelters can actually manage the extraction without using carbon coke and then electrolysis is usually used to purify the impure copper from the smelter.
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The Basics of Copper Mining and Processing. Mined from open pits, copper ore must be crushed as part of the process that occurs between extraction and production. Using todays compact mining equipment, copper ore is extracted from the mine. After the ore is crushed, its roasted, which helps to convert sulfides to oxides.
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Apr 17, 2018· By Joan Whetzel. Copper is a versatile metal used in thousands of everyday products. It oxidizes readily to form a distinctive coating known as patina. The patina gives the Statue of Liberty its characteristic appearance, but the oxidation of copper can
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Whatever method is used to manufacture copper from its ore, its final purification is by electrolysis Figure 6. Slabs of impure copper blister copper, together with thin sheets of pure copper metal or stainless steel or titanium are immersed in a solution of copperll sulfate 0.3 mol dm 3and sulfuric acid 2 mol dm 3 .
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Nov 16, 2015· How aluminium is extracted by electrolysisWhy cant it be extracted using carbon? It is more reactive than carbon and so carbon cannot remove the oxygen reduction.
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Start studying Chemistry Core 3: Metals and Their Uses. Learn vocabulary, terms, and more with flashcards, games, and other study tools.By heating with carbon. A reduction reaction takes place as carbon removes the oxygen from the oxide to produce the metal.How can displacement be used to extract copper?
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i Given below are the steps for extraction ii Draw a neat and well labelled diagram Or How is copper obtained from its ore C.. you are given a hammer, a battery, a bulb, wires and a switch. A man went door to door posing as a goldsmith ; Give reasons, why copper is used
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This page looks at the various factors which influence the choice of method for extracting metals from their ores, including reduction by carbon, reduction by a reactive metal like sodium or magnesium, and by electrolysis. Details for the extraction of aluminium, copper, iron and titanium are given in separate pages in this section.
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i Given below are the steps for extraction ii Draw a neat and well labelled diagram Or How is copper obtained from its ore C.. you are given a hammer, a battery, a bulb, wires and a switch. A man went door to door posing as a goldsmith ; Give reasons, why copper is used
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Apr 13, 2007· Metals above carbon in the reactivity series potassium, sodium, lithium, calcium, magnesium and aluminium are extracted by electrolysis. Extraction from the metal ore involves reduction of the metal, and electrons can reduce any metal ion.
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The copperII ions in the chalcopyrite are reduced to copperI sulphide which is reduced further to copper metal in the final stage. The iron in the chalcopyrite ends up converted into an ironII silicate slag which is removed. Most of the sulphur in the chalcopyrite turns into sulphur dioxide gas.
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Nov 16, 2015· copper carbonatecopper + carbon oxide dioxide copper oxide + carboncopper + carbon dioxide Copper mining. For every 2kg of copper 1000kg of copper ore needs to be extracted.
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The elements above carbon in the reactivity series can't be extracted using carbon because they are more reactive than carbon, therefore they are extracted by electrolysis. The elements above hydrogen and below carbon are extracted by carbon reduction .
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4b. Purification of Copper by Electrolysis extraction from ore above. The impure copper from a smelter is cast into a block to form the positive anode.The cathode is made of previously purified copper.These are dipped into an electrolyte of copperII sulphate solution.; When the d.c electrical current is passed through the solution electrolysis takes place.
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Sep 13, 2016· Aluminum, Zinc, Iron, Tin, Lead, Copper, Potassium, Calcium, Lithium, Sodium For more chemistry related queries log on to website worldofchemicals
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Jan 05, 2019· So it can be concluded that, during electrolysis of copper sulfate with copper electrodes, copper is deposited on cathode and same amount of copper is removed from anode.If during electrolysis of copper sulfate, we use carbon electrode instead of copper or other metal electrodes, then electrolysis reactions will be little bit different.
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May 05, 2016· Copper extracted by smelting has quite a high level of carbon impurities left in it which changes some of the properties, much like producing steel in a blast furnace. In the case of copper the changes in property make it much less effective in electrical components.
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Introduction to Copper Smelting Techniques.Copper ore typically contains only about 0.6% of the actual copper mineral, the most common ore mined being chalcopyrite. The ore is attained using traditional methods of underground and open pit mining, the later accounting for 90% of the ore used in smelting.
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Nov 16, 2015· Aluminium is extracted from its ore bauxite. Bauxite is mainly aluminium oxide. Formula Al2O3 Why is electrolysis used? Where is aluminium in the reactivity series? Near the top.
Inquire NowChemical reduction by carbonthe carbon is heated with the metal oxide. If the ore is a sulfide, it is roasted first of all to convert it to the oxide. Copper Silver Gold Platinum can be found native and separated from rock.
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than carbon, it can be extracted from its compounds by heating with carbon. Copper is an example of this. Copper mostly occurs as sulfide ores, which are heated in air to convert them to copperII
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Why can't Aluminium be extracted by heating with carbon? The method used to extract metals from the ore in which they are found depends on their reactivity. For example, reactive metals such as aluminium are extracted by electrolysis, while a lessreactive metal such as iron may be extracted by reduction with carbon or carbon monoxide.
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May 02, 2008· Bulk ingot copper from copper ore the way you suggested is not pure enough to be made directly into wires because it contains too many impurity elements to conduct as well as needed.
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