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The role of silica in the metallurgy of copper is to remove the iron oxide obtained during the process of extraction of pure copper from copper pyrite, S i O 2 acts as acidic flux which combines with iron oxide(F e O) to form iron silicate (F e S i O 3 ).
21/08/2020#0183;#32;The copper (II) ions in the chalcopyrite are reduced to copper (I) sulfide (which is reduced further to copper metal in the final stage). The iron in the chalcopyrite ends up converted into an iron (II) silicate slag which is removed. Most of the sulfur in the chalcopyrite turns into sulfur dioxide gas.
During roasting copper pyrites are converted into a mixture of FeO and lt;brgt; lt;brgt; lt;brgt; lt;brgt; To remove FeO (basic) an acidic flux silica is added during smelting FeO then combines with to form ferrous silicate slag which floats over molten matte and hence can be easily removed. lt;brgt;
Role of the silica in the extraction of copper from its ore is that it acts as flux which remove the impurity of FeO present in the ore by the formation of slag with it.
The process. The concentrated ore is heated strongly with silicon dioxide (silica), calcium carbonate and air or oxygen in a furnace or series of furnaces. The copper (II) ions in the chalcopyrite are reduced to copper (I) sulphide (which is reduced further to copper metal in the final stage).
(ii) Ores of copper contain iron oxide as an impurity. Silica reacts with iron oxide and forms iron silicate, which is removed as slag. FeO + SiO2 gt; FeSiO3 Iron oxide silica iron silicate (slag) (iii) The iron obtained from the blast furnace is known as pig iron.
the effects of silica in copper solvent extraction through chemical means. It has no adverse effects on the chemical properties of the extractant system or the downstream electrowinning, but exhibits a remarkable effect in improving the physical properties of the solventextraction system.
State the role of silica in the metallurgy of copper. The role of silica in the metallurgy of copper is to remove the iron oxide obtained during the process of roasting as ''slag''. If the sulphide ore of copper contains iron, then silica (SiO 2) is added as flux before roasting. Then, FeO combines with silica to form iron silicate, FeSiO 3 (slag).
Ores of copper contain iron oxide as an impurity. Silica reacts with iron oxide and forms iron silicate, which is removed as slag. In the smelting process such chemical reactions are taking place: 1) Oxidizing of the copper pyrite: 2 CuFeS 2 (s) + 3 O 2 (g) 2 FeO (s) + 2 CuS (l) + 2 SO 2 (g) 2) Conversion of iron oxides and sulfides into molten slag:
during the process of extraction of pure copper from copper pyrite,SiO2 acts as acidic flux which combines with iron oxide(FeO) to form iron silicate(FeSiO3). CuFeS2 + heat gt; Cu2s + FeS + SO2 FeS + O2 gt; Feo FeO + SiO2 gt; FeSiO3
Explain the role of each of the following in the extraction of metals from their ores : lt;brgt; (i) CO in the extraction of nickel. lt;brgt; (ii) Zinc in the extraction of silver. lt;brgt; (iii) Silica in the extraction of copper.
What is the role of silica in extraction of Cu from copper pyrite ore? Answer: Silica (SiO2) is used in the processes of smelting of copper pyrite (CuFeS2) ore and in conversion of produced copper matte (refined copper sulfide) into a crude metal as a flux (purifying agent). It reacts with solid impurities, such as iron oxide, and forms a liquid slag with density, smaller than the copper matte.
State the role of silica in the metallurgy of copper. MEDIUM. Video Explanation. Answer. Write down the reactions taking place in different zones in the blast furnace during the extraction of iron. View Answer. Describe the extraction of Mercury metal from its ore Cinnabar (H g S).
Nov 09,2020 What is the role of silica in the extraction of copper? | EduRev Class 12 Question is disucussed on EduRev Study Group by 102 Class 12 Students.
2. See answers. jay61jay61. Silica is used as a flux in the extraction of copper, to remove impurities of iron. nalinsinghnalinsingh. Hey !! In the extraction of copper, silica (SiO) acts as a ''''flux''''. It reacts with FeO and removes it as the slag (FeSiO). FeO + SiO gt; FeSiO.
What is the role of silica in the metallurgy of copper?
07/02/2019#0183;#32;The role of silica in the metallurgy of copper is to remove the iron oxide obtained during the process of roasting as ''slag''. If the sulphide ore of copper contains iron, then silica (SiO 2) is added as flux before roasting. Then, FeO combines with silica to form iron silicate, FeSiO 3 (slag).
What is the role of silica in metallurgy of copper?, Chemistry. during the process of extraction of pure copper from copper pyrite,SiO2 acts as acidic flux which combines with iron oxide (FeO) to form iron silicate (FeSiO3). CuFeS2 + heat gt; Cu2s + FeS + SO2 FeS + O2 gt; Feo FeO + SiO2 gt; FeSiO3.
What is the role of silica in extraction of Cu from copper pyrite ore? Answer: Silica (SiO2) is used in the processes of smelting of copper pyrite (CuFeS2) ore and in conversion of produced copper matte (refined copper sulfide) into a crude metal as a flux (purifying agent). It reacts with solid impurities, such as iron oxide, and forms a
Genius. Answer: Silica (SiO2) is used in the processes of smelting of copper pyrite (CuFeS2) ore and in conversion of produced copper matte (refined copper sulfide) into a crude metal as a flux (purifying agent). The iron sulfide is also converted into molten slag (reaction is shown above).
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