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 After mining copper is
Get PriceIf sulfide ore or sulfide tailings are exposed to water and air during mining a chemical reaction creates sulfuric acid basically battery acid There has never been a sulfide mine that has not polluted nearby water resources Pollution from sulfide mining is very expensive to fix and a burden for taxpayers
Get PriceCopper is usually found in nature in association with sulfur Pure copper metal is generally produced from a multistage process beginning with the mining and concentrating of low grade ores containing copper sulfide minerals and followed by smelting and electrolytic refining to produce a pure copper cathode
Get PriceSulfide mining which is sometimes referred to as hardrock mining is the process of extracting trace amounts of copper nickel and other metals from sulfide ores When sulfide ore comes into contact with water or oxygen a chemical reaction occurs and produces sulfuric acid Inquire Now copper extraction and purificationchemguide
Get PriceThe remaining 72% comes from projects where silver is a by product of mining other metals such as copper lead and zinc and it remains the primary reagent in use for gold processing today because it allows for efficient extraction of gold from low grade ore cyanide compounds will form hydrogen sulfide and evaporate
Get PriceCopper Mining and Extraction Sulfide Ores The smelter for sulfide ores produces sulfur dioxide gas This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores Scrubbing sulfur dioxide also protects the environment For example FeO s SiO 2 s → 2 slag This is GET PRICE >>
Get PriceThe addition of silica during the extraction of copper In the extraction of copper from its sulphide ore the metal is finally obtained by the reduction of cuprous oxide with asked Dec 23 2024 in Chemistry by sonuk points processes of CHAT
Get PriceHow is copper extracted from copper ore Copper mining is usually performed using open pit mining in which a series of stepped benches are dug deeper and deeper into the earth over time To remove the ore boring machinery is used to drill holes into the hard rock and explosives are inserted into the drill holes to blast and break the rock
Get PriceCopper Smelting means that the concentrated ore is heated strongly with silicon dioxide silica calcium carbonate CaCO 3 and air in a furnace The major steps in the extraction of copper are Copper in Chalcopyrite is reduced to copper sulphide Just like in Blast Furnaces calcium carbonate is added as a flux to create the slag
Get PriceGenerally the common copper sulfide minerals mainly include chalcocite covellite bornite copper pyrites and tennantite and their inherent floatability decrease in turn Copper sulfide ore has better floatability than sphalerite pyrite and another sulphide so it is more likely to float from the pulp by adsorpting collector
Get PriceCopper 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
Get PriceAbstract The authors discuss application of nitrogen oxygen sulfur heterocyclic agents as collectors and frothers in flotation of sulfide minerals Efficient collectors are the compounds which contain nitrogen heteroatom and sulfur atom in pendent group they can generate complex compounds including chelate with copper antimony and other metals in sulfide ore Compounds containing
Get PriceCopper Mining 11 14 YEARS and Extraction Sulfide Ores CHEMISTRY Answers 1 Place these products in the extraction process in ascending order of copper content Matte Ore Cathode copper Blister Anode copper Copper concentrate Fire refined copper The correct order is Ore to % copper Concentrate 30% copper Matte 50 70% copper get price
Get PriceThis work investigates the effect of an agglomeration and curing pretreatment on leaching of a copper sulfide ore mainly chalcopyrite using mini columns in acid nitrate chloride media Ten pretreatment tests were conducted to evaluate different variables namely the addition of nitrate as NaNO3 and kg/ton chloride as NaCl and kg/ton curing time 20 and 30 days and
Get PriceTherefore with an expected ore left over of 30% because of caving mining about 105 000 t per annum of copper will remain in the abandon ores Additionally employing a typical in situ post bioleaching extraction for copper 50% from dump or stockpile bioleaching can contribute 50 000 t of copper recovery annually
Get PriceFerric sulfate which is a powerful oxidizing agent then oxidizes the copper sulfide minerals and the copper contained is then leached by the sulfuric acid formed In the case of uranium the ferric sulfate oxidizes tetravalent uranium oxide which is insoluble in acid to hexavalent uranium oxide which is then leached by the sulfuric acid
Get PriceThe barren rock or gangue has to be separated from the sulfide minerals in order to smelt the metallic copper from the ore By far the greatest proportion of copper is extracted from the sulfides of copper iron and sometimes other metals Such ores originate from sulfur bearing volcanic magmas which have separated into metal sulfides and siliceous melts
Get Price1 Before the extraction of copper sulfide ore The massive sulfide ore is crushed to 12cm by jaw crusher or cone crusher This process may adopt multiple crushing stages by combining with the vibrating screen The qualified crushing materials are sent to the grinding mill through belt conveyor and feeder The material water and steel balls in
Get PriceChalcopyrite Ore Production The sulfide ore minerals including chalcopyrite CuFeS 2 sphalerite ZnS galena PbS provide the major sources of the world s base metals Cu Zn Pb respectively whereas pyrite is virtually ubiquitous as a metalliferous mineral in sulfide ore deposits Crang and Vanghan 1994 The first step in recovering metal from their mineral is that of finding
Get PriceLot more interesting detail can be read here Also to know is how is copper extracted from its ore Class 10 Extraction of copper metal Copper glance Cu 2 S is roasted in the presence of air Roasting turns copper glance ore of copper into copper I oxide is then heated in the absence of air This reduces copper I oxide into copper metal
Get PriceThe ore is then ground finely before the copper bearing sulfide minerals are concentrated by a flotation process which separates the grains of ore mineral from the waste material or gangue Depending on the type of copper bearing minerals in the ore and the treatment processes used the concentrate typically contains between 25 and 30% copper
Get Price> Copper Mining and Extraction Sulfide Ores and here > The Extraction of Copper 2 Cu2S 3 O2 → 2 Cu2O 2 SO2 In the production of copper two thirds of the molten copper sulfide is oxidized as above and the Cu2O reacts with unoxidized Cu2S to give Cu metal [6] 2 Cu2S 2 Cu2O → 6 Cu SO2 [ 1]
Get PriceIn their molten state copper ions are missing one electron giving them a positive charge while sulfur ions are carrying two extra electrons giving them a negative charge The desired reaction in an electrolysis cell is to form elemental atoms by adding electrons to metals such as copper and taking away electrons from sulfur
Get PriceExtraction of copper from sufidic ores either by pyrometallurgy or hydrometallurgy has various limitations In this study a solvometallurgical process for the extraction of copper from sulfidic ore minerals chalcopyrite bornite chalcocite and digenite was developed by using an organic lixiviant FeCl 3 as oxidizing agent and ethylene
Get PriceAnswers Copper Mining And Extraction Oxide Ores 1416 Back to copper mining and extraction oxide ores 1416 1 why can the electrolytic refining electrowinning be done without the use of copper anodes in electrolytic refining using copper anodes the copper is in the anode in electrowinning the copper is in the electrolyte 2
Get PriceCopper mining 11 14 years and extraction sulfide ores chemistry answers 1 place these products in the extraction process in ascending order of copper content matte ore cathode copper blister anode copper copper concentrate fire refined copper the correct order is ore to copper concentrate 30 copper matte 5070 copper blister 98 copper
Get PriceThe reaction involved in the final step of extraction of zinc is Z n O C → Z n C O Purification The last step involves the purification of Zinc Zinc is purified by electrolytic refining In this process impure zinc is anode and cathode is of a pure thin sheet of zinc and the electrolyte used is Z n S O 4
Get Price1 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
Get PriceMining Extraction Of Copperfrom Cuprite In Ethiopia Copper Mining and Extraction Sulfide Ores Answers 1 Place these products in the extraction process in ascending order of copper content 2 Use a periodic table to find the atomic masses of the elements in cuprite and chalcocite Then work out the percentage of copper in each mineral
Get PriceAn introduction to the extraction purification and recycling of copper These downloadable PDF resources explore how copper can be extracted from oxide ores physically by froth flotation then chemically by smelting and finally electrolytic refining It also explores the mining of sulphide ores and the subsequent extraction of copper Files
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