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Sulphide such as chalcopyrite are converted to by a dissimilar method from silicate, carbonate or sulphate . The principal of is pyrite and is extracted from this . of from pyrites involves the …read more
Large track-mounted drills prepare the ore for blasting, and the broken ore is the - at up to 150 tons per load or conveyor. In underground mining, vertical shafts are sunk well over 1,000 metres 3,300 feet below the surface, and tunnels are extended to the ore body.read more
Copper mostly occurs as sulfide ores, which are heated in air to convert them to copper II oxide. Molten copper can be produced from copper II oxide by heating with carbon: copper oxide +...read more
· Currently the extraction of copper is performed using a pyrometallurgical process that involves the use of electricity as well as coal, both of which are expensive. The use of fossil fuels in extraction produces carbon dioxide which contributes to global warming. The other method used is solvent extraction followed by electro-winning SX-EW.read more
For example, the of Cu from its sulphide is done as follows The sulphide of are heated in reverberatory furnace If the contains iron, it is mixed with silica before heatingread more
Extraction of Copper. Copper is sometimes found as native metal. Copper ores include pper II oxide can be reduced by reaction with carbon.read more
View of .doc from AM 6 at Harvard University. Name_Class_Date_ Skills Practice Lab DATASHEET FOR IN-TEXT LAB of from Its …read more
Copper 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 beneficiated. The processing techniques depend on the nature of …read more
The commonest ore used in the extraction of copper is 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 …read more
of Although does not occur abundantly in nature, many -containing are known. The most common is I ironIII sulfi de, CuFeS 2, a metallic-looking solid that has the two mineralogical names of chalcopyrites and pyrites. A rarer mineral, CuAl 6 PO 4 4 OH 8?4H 2 O, is the valued blue ...read more
HYDROMETALLURGY OF COPPER This process is used for the extra pper from low grade sulfide ore. In this process, the crushed and ground ore in bulk about 100,000 tons is exposed to air and water in big tanks. The air in the presence of water gradually oxidizes copper and iron sulphides to …read more
The principal of is pyrite and is extracted from this . The different steps in of are: Crushing and Concentration: The obtained from mines are broken down into small piece by jaw crusher and then pulverized. The being sulphide is concentrated by froth floatation process.read more
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