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Nov 26, 2017· What is copper matte & Role of Silica in copper metallurgy? |Unit-6|Part -17| cbse | grade12 ... Chemistry Books | Extraction of Copper From Copper Pyrites | Froth Floatation ...
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).
Dec 22, 2017· 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).
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).
Write chemical reactions taking place in the extraction of zinc from zinc blende. Answer. ... In this process, impure zinc is made the anode while a pure copper strip is made the cathode. The electrolyte used is an acidified solution of zinc sulphate (ZnSO 4). Electrolysis results in the transfer of zinc in pure from the anode to the cathode.
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).
Solution What is the Role of Silica in the Extraction of Copper? Concept: Occurrence of Metals.
Aug 23, 2017· Find an answer to your question What is the role of silica in the extraction of copper? 1. Log in. Join now. 1. Log in. Join now. Secondary School. Science. 13 points What is the role of silica in the extraction of copper? ... In the extraction of copper, silica (SiO₂) acts as a ''flux''. It reacts with FeO and removes it as the slag (FeSiO₃).
What is the role of silica in the extraction of copper? 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: ...
explain role:SiO2 in the extraction of copper - Chemistry - General Principles and Processes of Isolation of Elements
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).
Silica acts as an catalyst in the extraction of copper. This is the role of silica in extraction of copper. HOPE THE ANSWER HELPS!!!
Write the role of silica in the extraction of copper from copper matte Get the answers you need, now! 1. Log in. Join now. 1. Log in. Join now. Secondary School. Chemistry. 13 points Write the role of silica in the extraction of copper from copper matte Ask for details ; Follow Report by Avantika3184 19.01.2019 Log in to add a ...
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).
The role of silica in the metallurgy of copper is to remove the iron oxide obtained during the process of roasting. 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).
(ii) Copper matte contains Cu 2 S and FeS. In the blast furnace, copper matte is added with powdered coke and silica. The oxidation of ore takes place in this process. As a result, cuprous oxide and ferrous oxide are produced. The role of silica in this process is to remove the iron oxide obtained as 'slag'.
What is the role of cryolite in the metallurgy of aluminium? Answer. Cryolite (Na 3 AlF 6) has two roles in the metallurgy of aluminium: 1. To decrease the melting point of the mixture from 2323 K to 1140 K. 2. To increase the electrical conductivity of Al 2 O 3. Previous Question.
Role of : a) SiO2 in extraction of copper b) NaCN in extraction of gold c) Iodine in refining zinconium - Chemistry - General Principles and Processes of Isolation of Elements
Copper Smelting: Smelting is a metallurgy technique to extract base metals from their ores with the help of heat and a chemical reducing agent. (Click here for extraction process). Copper 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 ...
This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses. Before you get too bogged down in the extraction of copper, make sure that you need it for whatever syllabus you are using.
What is the role of silica in the extraction of Cu from copper pyrite ore? By sidharth on Sat, 05/11/2013 - 03:56 you may go to this link to
The reduction potentials of zinc and iron are lower than that of copper. In hydrometallurgy, zinc and iron can be used to displace copper from their solution. Fe (s) + Cu 2+ (aq) → Fe 2+ (aq) + Cu (s) But to displace zinc, more reactive metals i.e., metals having lower reduction potentials than zinc such as Mg, Ca, K, etc. are required.
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Role Of Silica In The Extraction Of Cu From Copper Pyrites . During the roasting of pyrite ore a mixture of feo and cu2o is obtained the role of silica in the metallurgy of copper is to remove the iron oxide obtained during the process of roasting as slag then feo combines with silica to form iron silicate fesio3 .
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