Dissolution of copper and iron from the calcine was found to be very fast and was complete within the first few minutes The water temperature in the leaching step was found to have no effect on extraction of copper and iron from the calcine in the range of 30 to 85 oC Keywords copper slag sulphation roasting acid baking leaching
Get PriceIn the furnace iron oxide slags of as iron silicate and copper is produced in the form of copper matte This contains Cu 2 S and FeS FeO SiO 2 → FeSiO 3 Slag Copper matte is then charged into silica lined convertor Some silica is also added and hot air blast is blown to convert the remaining FeS 2 FeO and Cu 2 S/Cu 2 O to the
Get PriceCopper slag is a by product of copper extraction by smelting During smelting impurities Historical gold silver copper mine Historical gold silver and copper mine Mills copper Ore and gold Copper mines at the desert Chilean copper extractions mines at Coquimbo region
Get Priceto establish the recovery of silver from slag extraction of impure metals followed by recycling of Ag enriched slag was investigated The corresponding raw material was rich in Cu 8 10% Bi 6 8% Pb 14 16% Ag 3 4% For copper extraction leaching experiments were carried in a specially designed compact two liter glass
Get PriceA hydrometallurgical process for treating slag material especially copper smelter slag material comprises vigorously mixing the slag material with about one part by weight of sulfuric acid and about one part by weight of water for each part by weight of the slag material and allowing the resulting mixture to react to produce a dry solid material containing the metal values of the slag in
Get PriceThe process of extracting copper from copper ore School Govt Jamia Millia College of Education Course Title ACC 338 Uploaded By ChiefSalmonMaster150 Pages 71 This preview shows page 33 36 out of 71 pages
Get PriceCopper can be extracted from non sulfide 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 copper II sulfate solution Concentration of the copper II sulfate solution by solvent extraction
Get PriceAfter adding a little fresh sulfuric acid to the leachate for recycling used in leaching of new copper slag valuable metals such as copper or zinc can be extracted by a conventional ion exchange or solvent extraction process until they are enriched in the leachate
Get PriceCopper smelter slag is a by product of pyrometallurgical copper production It is estimated that approximately million tons of copper smelter slag is produced annually worldwide [1 2] The disposal of these massive amounts of copper slag necessitates significant expanses of land posing waste management issues [3 4] Containing such toxic components as As and Cd copper smelter slag is a
Get PriceThis 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 underground mining and using a different relevant treatment method for oxide or sulphide copper mineral ore Having a quick look now at how porphyry ores are
Get PriceDOI /S0304 386X 02 00138 X Corpus ID 98515042 Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction article{Banza2002BaseMR title={Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction} author={A N Banza and Eberhard Prof Dr Gock and K Kongolo} journal={Hydrometallurgy} year={2024} volume={67} pages
Get PriceThe Fe3O4 and Fe2SiO4 in copper slag were successfully reduced to metallic iron by coal based direct reduction Under the best reduction conditions of 1300 °C reduction temperature 30 min reduction time 35 wt % coal dosage and 20 wt % CaO dosage binary basicity the Fe grade of obtained iron concentration achieved % and the Fe recovery was % The kinetic studies on
Get PriceHydrometallurgical Extraction of Copper I 5 Summary Extracting Copper from Copper Iron Sulfide Ores Melting and Casting Cathode Copper Recycle of Copper and Copper Alloy Scrap Suggested Reading References 2 Production and Use Locations of Copper Deposits Location of Extraction Plants Price of Copper Summary
Get PriceSince copper is in majority it is called copper ore from where copper is extracted The iron portion is converted into iron II silicate and removed as slag 2 CuFeS A 2 2 SiO A 2 4 O A 2 Cu A 2 S 2 FeSiO A 3 slag 3 SO A 2 If you want to extract iron you need iron ore which are rich in iron content
Get PriceCopper is a chemical element with the symbol Cu from Latin cuprum and atomic number 29 It is a soft malleable and ductile metal with very high thermal and electrical freshly exposed surface of pure copper has a pinkish orange is used as a conductor of heat and electricity as a building material and as a constituent of various metal alloys such as sterling
Get PriceOverall copper content in ELV is 1 2% 2 Construction and Demolition waste C D This includes copper found in wirings of buildings pipes and fittings etc C D waste contains about % copper 3 Waste from Electronics and Electrical Equipment WEEE WEEE is today one of the biggest sources of copper
Get PriceThis summer we discovered a residential area with facilities for extraction of copper from copper ore and copper slag We found remains of melting furnaces and about 300 kilos of ore and slag In a room nearby we also found evidence of production of purple textiles which were among the most valuable commodities during the Bronze Age
Get PriceCopper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings Hydrogen peroxide was determined to be the best lixiviant Thus copper and iron extractions were % and % respectively when leaching the slag with 3 M H copper slag copper slag flotation tailings leaching sulphuric
Get Pricediscovered that heat made copper more malle able Casting and smelting of copper began around 4000 3500 see figure 6 2 About 2500 B C copper was combined with tin to make bronze—an alloy that allowed stronger weapons and tools Brass an alloy of copper and zinc probably was not developed until 300
Get PriceThe reaction of these processes can be written as 2CuFeS2 2SiO2 4O2 → Cu2S 2FeSiO3 3SO2 The copper extracted from this process is mixed with the slag and is called Matte Copper due to its texture and appearance This mainly consists of Cu2S which is reduced to pure metal by blasting Matte Copper with air Cu2 S O2 → 2Cu SO2
Get Priceabout million tons of copper It is esti mated that at every ton of produced copper there are about to tons of slag which means that in the world in 2024 about 40 million tons of slag was generated Slag contains about to % copper and was traditionally deposited as the waste material [2 5]
Get Price2CuFeS2 2SiO2 4O2 → Cu2S 2FeSiO3 3SO2 After the extraction of copper it is converted into Matte Copper after mixing it with the slag The name is such due to its appearance and texture The main component of the matte is Cu 2 S which is reduced to pure metal with the help of blasting the Matte Copper with air
Get PriceThe lower end of blast furnace has two openings for slag and copper matte Fig Blast Furnace for extraction of copper Bassemerisation The molten matte is mixed with little silica and charged into a Bessemer converter Lined internally by basic lining of CaO or MgO Hot air is blown into the mixture which converts remaining FeS To FeSiO3
Get PriceDuring the extraction of copper from pyrite slag is mainly made up of 1 Cu2S 2 CuSiO3 3 FeSiO3 4 SiO2 asked Apr 8 2024 in Principles and Processes of Isolation of Elements by Pawan01 points principles and processes of isolation of elements class 12 0 votes 1 answer
Get PricePanda et al [29] noted that the range of pulp densities from 15% to 25% resulted in a similar Cu extraction 70% from copper slag whereas a lower pulp density <15% enables an almost 100%
Get PriceIn the extraction of copper the slag formed in the blast furnace is A CaSiO 3 B FeSiO 3 C Ca 3 PO 4 2 D MnSiO 3 Medium Solution Verified by Toppr Correct option is B Copper ores contain iron as the main impurity Iron react with silica and is removed as slag Therefore the slag formed in the blast furnace is FeSiO 3
Get PriceCopper extraction refers to the methods used to obtain copper from its ores The conversion of copper consists of a series of physical and electrochemical processes Methods have evolved and vary with country depending on the ore source local environmental regulations and other factors
Get PriceExtraction 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 The concentrated ore is heated strongly in the reverberatory furnace in excess of air During roasting i Moisture is removed
Get PriceAbout million tonnes of copper smelter slag are available in Küre northern part of Turkey This slag contains large amounts of metallic values such as copper and cobalt A representative slag sample containing % Cu % Co and % Fe was used in the experimental studies Two different methods direct acid leaching and acid baking
Get PriceThe copper recoveries were found to be satisfactory and a limited amount of the cobalt could also be extracted For the Rokana slag the copper and cobalt recoveries were % and % respectively The results of this study have shown that the roasting of copper slags with pyrite followed by water leaching of the calcines obtained is a
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