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
Get PriceThe finely crushed ore is concentrated by Froth EXTRACTION OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite CuFeS 2 Chalocite Cu 2 S or copper glance Malachite green [CuCO 3 Cu OH 2] Azurite blue [2CuCO 3 Cu OH 2] Bornite 3Cu 2 S Fe2S 3 or peacock ore Melaconite CuO etc EXTRACTION OF COPPER FROM SULPHIDE ORE
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 PriceThe compound present in the ore is copper I sulphide Its formula is Cu 2 S Copper is a less reactive metal; therefore it is placed at the bottom in the reactivity series Copper is extracted by heating its sulphide ore alone What is the process of extracting copper Extracting of Copper from Other Ores
Get PriceDue to the complex mineral composition of lead zinc copper associated silver ore the symbiotic relationship embedded properties and oxidation degree of the ores are different and the extraction effect is also very different At present flotation is a common method for extracting lead zinc copper associated silver ore
Get PriceA maximum recovery of 83 6% Cu and 77 2 % Co were achieved at 80ºC using 150 mM of citric acid The recovery of copper and cobalt from the oxidized ore using fungal metabolic acid was found to be
Get PriceThe 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
Get PriceConversion of Cu II ion into Copper metal via electrolysis
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Get PriceMining of copper ores is carried out using one of two methods Underground mining is achieved by sinking shafts to the appropriate levels and then driving horizontal tunnels called adits to reach the ore Underground mining is however relatively expensive and is generally limited to rich ores El Teniente in Chile is the world s largest
Get PriceCopper Mining The commonest ore used in the extraction of copper is Chalcopyrite CuFeS 2 also known as Copper Pyrites and other such sulphides The percentage of copper in the actual ore is too low for direct extraction of copper to be viable The concentration of ore is required and it is done by the Froth Flotation method
Get PriceThere are many processes it is mainly influenced by reasons below 1 There are many kinds of sulfide copper ore like Chalcopyrite chalcocite porphyry copper copper blue arsenopyrite The reaction sequence with xanthate is Chalcocite> copper blue> speckle copper> pyrite 2 Secondary copper ore and oxidation influence 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 As in all mining operations the ore must usually be
Get PriceOpemiska ore has a specific gravity of 2 9 and grinding in the ball mills is done at 78% solids The approximate split of the feed is 350 850 and 850 tons per day between the Nos 2 3 and 4 milling circuits Ball and liner consumption and scoop repairs have been moderate
Get PriceThe first step mineral processing is to liberate the copper minerals and remove waste constituents—such as alumina limestone pyrite and silica—so that the copper minerals and other nonferrous minerals of value are concentrated into a product containing between 20 and 30 percent copper
Get PriceThis way copper extraction becomes substantially more efficient and reduces its environmental impact Jetti Resources method allows copper mines to use heap leaching on these ores which causes around 40% fewer CO 2 emissions compared to traditional raw material extraction and uses only approximately 50% of the water The technology is
Get PriceSee what other pages need images Copper Ore is a resource that can be gathered from copper ore veins Copper ore is only found within Granite It is most abundant in the Tundra or Ice biomes especially 20 30 blocks below the surface Copper Ore is clearly distinguishable from the surrounding rock due to its reddish mottled appearance
Get PricePreliminary extraction of the copper with sulphuric or sulphurous acids may be applicable to ores containing oxidized copper minerals such as malachite azurite and chrysocolla but these acids have but little effect on sulphide copper minerals many of which dissolve readily in cyanide solutions
Get PriceFor copper bearing sulfide gold extraction we can enrich gold in copper concentrate by flotation and then comprehensively recover copper and gold by smelting For gold bearing pyrite we use cyanidation gold extraction process 9 Antimony bearing sulfide gold ore
Get PriceCopper mostly occurs as sulfide ores which are heated in air to convert them to copper II oxide Molten copper can be produced from copper oxide by heating with carbon Copper oxide
Get PriceAt its simplest Jetti s technology is focused on a common type of ore that traps copper behind a thin film making it too costly and difficult to extract The result is that vast quantities of metal have been left stranded over the decades in mine waste piles on the surface as well as in untapped deposits
Get PriceThe most common ore used in copper extraction is Chalcopyrite CuFeS 2 also recognized as Copper Pyrites and other such sulfides The proportion of copper in the real ore is too limited for straightforward copper extraction to be feasible The concentration of ore is required and the Froth Flotation method is used for this process
Get PriceExamples of ores mined for the extraction of copper include chalcopyrite bornite and chalcocite while ores mined for iron include magnetite and pyrite What is the simple definition of
Get PriceModern copper smelters use processed copper ore fed into a flash furnace typically fired by oxygen which produces blister copper being further processed in a converter furnace Molten copper is poured from here into rectangular moulds the resulting ingots subjected to electrolysis producing a metal of 99 9% purity Copper can be recycled indefinitely without the base metal being compromised
Get PriceBut that method isn t suitable for oxidic ores and the industry s last big innovation came in the mid 1980s when it adapted an electro chemical process to extract copper from oxide ores
Get PricePostdoc Sulata K Sahu and PhD student Brian J Chmielowiec 12 decomposed sulfur rich minerals into pure sulfur and extracted three different metals at very high purity copper molybdenum and rhenium They also quantified the amount of energy needed to run the extraction process
Get PriceTin ore extraction process flow 1 Ore washing and desliming This step is aimed at raw materials with high mud content and strong cementation Such raw materials must be washed and desliming before crushing The mine washing machine is used for washing the ore and the classifier is used for the desliming and the hydrocyclone 2
Get PriceThe copper sulfate solution called the pregnant leach solution is then stripped of copper via a solvent extraction and electrowinning SX EW process Alternatively the copper can be
Get PriceFollowing is a list of minerals that serve as copper ores in the copper mining process Image Name Formula % Copper when pure Chalcopyrite CuFeS 2 34 5 Chalcocite Cu 2 S 79 8 Covellite CuS 66 5 Bornite 2Cu 2 S·CuS·FeS 63 3 Tetrahedrite Cu 3 SbS 3 x Fe Zn 6 Sb 2 S 9 32 45 Digenite Cu 9 S 5 78 1
Get PriceIMPORTANT ORES OF COPPER 1 Copper pyrite or chalcopyrite CuFeS2 2 Chalcocite or copper glance Cu2S 3 Malachite green [CuCO3 Cu OH 2] 4 Azurite blue [2CuCO3 Cu OH 2] 5 Bornite or Peacock ore [3Cu2S Fe2S3] 6 Cuprite Cu2O 3 EXTRACTION OF COPPER • Copper is mainly extracted from its sulfide ores by smelting
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