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and refining. The of from is normally carried out in three major steps. The first step, mineral processing, is to liberate the minerals and remove waste constituents—such as alumina, limestone, , and silica—so that the minerals and other nonferrous minerals of value are concentrated into a product containing between 20 and 30 percent .read more
· A-level physics tomorrow. Please help me with this questions: is from its , . The is roasted in a limited supply of oxygen. The following equations describe the process: 1. 2CuFeS2 s + 4O2 g ---> CuS2 s + 3SO2 g + 2FeO s 2. Cu2S s + O2 g ---> 2Cu s + SO2 g a. i Calculate the number of moles of CuFeS2 in 200g. ii In the experiment 88g ...read more
Copper Mining: 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 ore is required and it is done by the Froth Flotation method.read more
Melaconite CuO etc. EXTRACTION OF COPPER FROM SULPHIDE ORE. Large amount of copper are obtained from copper pyrite CuFeS2 by Ores containing 4% or more copper are treated by process. Very poor ores are treated by hydro-metallurgical process.read more
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The concentrated ore is heated strongly in the presence of hot air in a furnace called reverberatory furnace. During roasting the copper pyrite decomposes to Cu2S and FeS and the sulphur is oxidized to SO2 gas. and as impurities are removed in the form of their volatile oxides.read more
· Hence, the extraction of copper from its pyrite ore is difficult than from its oxide ore through reduction. Previous Question Next Question Popular Questions of Class 12th chemistryread more
Chalcopyrite is concentrated in this environment via fluid transport. Porphyry copper ore deposits are formed by concentration of copper within a granite stock during the ascent and crystallisation of a magma. Chalcopyrite in this environment is produced by concentration within a magmatic system.read more
OF . On industrial scale is from its sulphide known as CuFeS 2 by smelting method. STEPS OF . For ... Crushed is suspended in water containing pine oil. A blast of air is passed through the suspension. The particles of get wetted by oil and floats as a froth which is skimmed.read more
The principal of is and is from this of from involves the following steps – Crushing and concentration. The is crushed and then concentrated by froth floatation process. The obtained from mines are broken down into little piece by jaw crusher and then pulverized. The being sulphide …read more
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