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Nov 1 2021The extraction of copper increased with increasing temperature sulfuric acid concentration and total pressure On the other hand an increase in pulp density resulted in a decline in copper extraction due to an increased slurry viscosity and resistance in the diffusive mass transfer of reactants Selective dissolution of copper from iron can
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Destruction of habitats Preserves natural resources Decreases landfill space required It is cheaper than extraction from the ore 4 Most titanium is extracted from titanium oxide ore The oxide is first converted to titanium chloride The titanium chloride is then reacted with sodium This method of extracting titanium is very expensive
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Copper ore typically contains only about % 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 The ore is crushed screened and washed before being further processed ready to supply the smelting furnace
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1 Types of copper sulfide ore 1 Single copper mineral Its ore characteristic is relatively simple and the only useful component that can be recycled is copper The gangue minerals are mainly quartz carbonate and silicate 2 Copper sulfur ore Called copper bearing pyrite In addition to copper minerals iron sulfide can be recovered and
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Copper can be extracted from its ores by reduction One of the common copper ores malachite which is composed of mainly copper carbonate CuCO3xCu OH 2 is heated to produce copper oxide with the release of carbon dioxide CuCO3xCu OH 2 → 2 CuO CO2 H2O The copper oxide is then heated with carbon to get copper 2 CuO C → 2 Cu CO2
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In the extraction of copper from its sulphide ore the metal is finally obtained by the reduction of cuprous oxide with A copper I sulphide B sulphur dioxide C iron II sulphide D carbon monoxide Hard Open in App Solution Verified by Toppr Correct option is A In the extraction of copper from its sulphide ore the metal is finally obtained by the reduction of cuprous oxide with
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Extraction of Zinc from Calamine left {{rm{ZnC}}{{rm{O}} 3}} right Zinc can be extracted from its carbonate ore calamine through calcination The steps are 1 Concentration of Ore Calamine is converted into its oxide form by heating the ore strongly in the absence of air This process is known as calcination and produces zinc oxide
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Copper can also be obtained in a similar manner from its sulphide ore Cu2S Heat 2Cu2S 3O g > 2u2O s 2S2O g Heat 2Cu2O Cu2S > 6Cu s SO2 g Extracting Metals in the Middle of the Activity series Metals like iron zinc lead etc occur as sulphides or carbonates in nature First the ore is converted into its oxide form
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Shandong 500t/d Copper Lead and Zinc Ore Bulk Flotation Project Ore Property Shandong client commissioned Xinhai Mine Research Institute to conduct ore dressing experiment after collected 50kg samples on the scene After tested the ore properties of sample ore Xinhai lab concluded that the main metal minerals of the project were copper lead zinc and a certain amount of magnetite
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Smelting is a metallurgy technique to extract base metals from their ores with the help of heat and a chemical reducing agent Click here for extraction process Copper Smelting means that the concentrated ore is heated strongly with silicon dioxide silica calcium carbonate CaCO 3 and air in a furnace
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So extraction of Copper from it becomes very difficult it is a lengthy process because i It contains many impurities in such a high amount that the percentage of Copper in it becomes only 2 3% ii Copper has more affinity to sulphur than Fe So the Cu 2 O formed through roasting of the ore is later converted into Cu 2 S by reacting
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Copper can be extracted from non sulphide 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 sulphuric acid to produce a very dilute copper II sulphate solution Concentration of the copper II sulphate solution by solvent extraction
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extracting copper from its ores lecture 14 pyro metallurgical extraction roasting contents npteltypically sulphide ores of copper zinc and lead are roasted either partially or completely copper es for roasting is usually carried out below the melting investigation of copper recovery from a sulphide oxide ore with a morgan sarah davidson a thesis submitted to the
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The processes used for removing the gangue from the ore are based on the differences between the physical or chemical properties of the gangue and the ore Different separation techniques are accordingly employed 1 Extracting Metals Low in the Reactivity Series Metals low in the activity series are very unreactive
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An oxidized lateritic ore which contained % by weight copper was bioleached in pH and temperature controlled stirred reactors under acidic reducing conditions using pure and mixed cultures of the acidophilic chemolithotrophic bacterium Acidithiobacillus ferrooxidans Sulfur was provided as th … Extraction of copper from an oxidized lateritic ore using bacterially catalysed reductive
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Mining residues in general and metal ores in particular contain heavy metals within the rock These heavy metals including copper Cu for which there is an increasing demand around the world
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A typical copper ore contains between % and % copper A high grade ore produces a high yield of metal A low grade order produces a low yield of metal Copper can be extracted from sulfide ores usually higher grade ores by direct smelting The earliest evidence of copper smelting occurs in Serbian artefacts dating from around 5000 BC
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11 Polymetallic sulfide gold ores containing lead zinc and copper Polymetallic sulfide gold ores containing lead zinc and copper refer to ores that coexist with gold ores and considerable amounts of copper lead zinc and other sulfur ores The secondary ore has many components that can be extracted Gold is present in different particles
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Copper Solvent Extraction The separation of copper from nickel is based on the fact that there is an appreciable difference in the pH at which the two metals are extracted Copper can be extracted with very small amounts of nickel at pH to while nickel is extracted from the copper raffinate at pH to
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Process for extraction of copper from copper pyrite At the starting copper pyrite is roasted in a reverberatory furnace because on roasting we will get copper oxide from the copper pyrite from which the copper can be extracted by doing reduction 2 C u F e S 2 O 2 → C u 2 S 2 F e S S O 2 Now as we know that the iron is more reactive
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Primary copper production starts with the extraction of copper bearing ores There are two basic ways of copper mining surface and underground mining Due to copper being spread in relatively low concentrations over large areas surface or open pit mining is the predominant mining method for copper in the world
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The increase of the temperature leads to an increase of copper extraction rates from low grade copper ore as shown in Fig 4 A maximum of % Cu was recovered at 60°C as compared to other three temperatures % at 40°C % at 50°C and % at 60°C respectively Copper dissolution was higher at 60°C than at 50 or 40°C
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This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores Copper sulphate is soluble in water so acid will be saved in the leaching process if Hydrometallurgical copper recovery is the extraction and recovery of copper from ores using aqueous solutions Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate carbonate
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copper mining and processing flow diagrams Copper Mining and Extraction Oxide Ores The process used to treat sulfide copper ores begins at the mine site where the copper bearing minerals are physically separated from the rest of the rock The flow diagram below shows how the percentage of copper increases as the ore is refined first
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Answer 1 of 2 Several factors that have high impact on cost Low percentage of copper in ores requires a lot of rock to be moved and processed In the 21st century average Cu content in ore is less than % to yield 1 ton of copper requires digging and trucking and processing
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The ability to extract copper from ore bodies was well developed by 3000 BCE and critical to the growing use of copper and copper alloys Lake Van in present day Armenia was the most likely source of copper ore for Mesopotamian metalsmiths who used the metal to produce pots trays saucers and drinking vessels
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Copper containing rock or copper ore holds only a small percentage of copper Most of the rock is unwanted material typically referred to as gangue There are two main types of copper ore that
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The extraction of metals and their isolation occurs over a few major steps Concentration of Ore Here the ore is separated from earthy impurities Isolation of metal from concentrated Ore Here the ore is converted to its oxide form and then reduced The steps involved are either calcination or roasting and then heating with a reducing
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Extraction of Copper Chalcopyrite CuFeS 2 is the commonest copper is mainly extracted from the sulphide ore Cu 2 S by the self reduction process The ores are often low grade %
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Copper is extracted in large amounts from the Earth s crust by mining of sulphide ores and also oxide ores Studies reveal about 80% of copper is produced by its extraction from sulphide ores Chalcopyrite is a certain kind of suphide ore that can be converted to copper by a different method from silicate carbonate or sulphate ores
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