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During Roasting Process Of Copper Pyrite Silica Is Added To Remove 1

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  • State Therole Of Silica In Metallurgy Of Copper

    State Therole Of Silica In Metallurgy Of Copper

    During the roasting of pyrite ore a mixture of feo and cu 2 o 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 if the sulphide ore of copper contains iron then silica sio 2 is added as flux before roasting

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  • Copper Is Extracted From Copper Pyrites After Roasting

    Copper Is Extracted From Copper Pyrites After Roasting

    Copper is extracted from copper pyrites after roasting the ore is mixed with silica and coke and then smelted in a blast furnace the matte obtained from the blast furnace is charged into a silica lined converter some silica is also added and a hot air blast is thrown into the mixture to obtain blister copper which is purified by electrorefining

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  • State The Role Ofsilicain The Metallurgyof Copper

    State The Role Ofsilicain The Metallurgyof Copper

    Dec 21 2017 during the roasting of pyrite ore a mixture of feo and cu 2 o 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 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

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  • Chapter 6 General Principles And Processes Of Isolation Of

    Chapter 6 General Principles And Processes Of Isolation Of

    During the roasting of pyrite ore a mixture of feo and cu 2 o 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 if the sulphide ore of copper contains iron then silica sio 2 is added as flux before roasting

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  • Roleof Silica In The Extraction Of Cu From Copperpyrites

    Roleof Silica In The Extraction Of Cu From Copperpyrites

    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 slag

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  • Chemistry Class 12 Ncert Solutions Chapter 6 General

    Chemistry Class 12 Ncert Solutions Chapter 6 General

    During the roasting of pyrite ore a mixture of and 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 if the sulphide ore of copper contains iron then silica is added as flux before roasting then combines with

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  • Chapter 6general Principles And Processes Of Isolationof

    Chapter 6general Principles And Processes Of Isolationof

    During the roasting of pyrite ore a mixture of feo and cu 2 o 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 if the sulphide ore of copper contains iron then silica sio 2 is added as flux before roasting

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  • Samacheer Kalvi 12th Chemistry Solutions Chapter 1

    Samacheer Kalvi 12th Chemistry Solutions Chapter 1

    Jan 20 2020 1 the role of silica in the extraction of copper is to remove the iron oxide obtained during the process of roasting as slag if the sulphide ore of copper contains iron the silica sio 2 is added as flux before roasting then feo combines with silica to form iron silicate fesio 3 slag 2

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  • Pdf Recovery Ofmetal Values From Copper Slagsby

    Pdf Recovery Ofmetal Values From Copper Slagsby

    Roasting of copper converter slag containing 403 copper 198 nickel and 048 cobalt with ammonium sulphate open to atmosphere has been carried out in order to achieve sulphation of copper

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  • Copperextraction And Purification  Chemguide

    Copperextraction And Purification Chemguide

    Note until i added the questions in july 2015 i had always assumed on no good evidence never a good idea that chalcopyrite contained copper and iron both in the 2 oxidation state but that may well be wrong if it was true then you can show that the sulphide ions are reducing cuii to cui however if the copper was in the 1 state originally then the sulphide ions are reducing

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  • Metallurgy Of Copper Slideshare

    Metallurgy Of Copper Slideshare

    Dec 06 2017 metallurgy of copper 1 metallurgy of copper xii chemistry chapter 5 sidra javed 2 important ores of copper 1 copper pyrite or chalcopyrite cufes2 2 chalcocite or copper glance cu2s 3 malachite green cuco3cuoh2 4 azurite blue 2cuco3cuoh2 5 bornite or peacock ore 3cu2sfe2s3 6 cuprite cu2o 3

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  • Copper Processing  Roasting Smelting And Converting

    Copper Processing Roasting Smelting And Converting

    Copper processing copper processing roasting smelting and converting once a concentrate has been produced containing copper and other metals of value such as gold and silver the next step is to remove impurity elements in older processes the concentrate containing between 5 and 10 percent water is first roasted in a cylindrical refractorylined furnace of either the hearth or

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  • Important Questions For Class 12 Chemistry Chapter 6

    Important Questions For Class 12 Chemistry Chapter 6

    Dec 06 2019 silica acts as acidic flux in the extraction of copper to remove the iron oxide obtained during the process of roasting to remove feo silica is added during smelting feo then combines with sio 2 to form ferrous silicate fesio 3 slag which floats over molten matter and hence can be easily removed iii wrought iron question 68

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  • Coppermining And Extraction Sulfide Ores

    Coppermining And Extraction Sulfide Ores

    Stage 3 roasting at this stage of the process the chemical reactions begin they convert the copper minerals into copper metal we can illustrate the types of process using the example of chalcopyrite cufes 2from the formula it is clear that iron and sulfur have to be removed in order to produce copper

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  • Flotation Of Sphalerite And Pyritein The Presence Of

    Flotation Of Sphalerite And Pyritein The Presence Of

    Jun 01 2001 1 introductionpyrite is one of the major diluents of copper lead and zinc concentrates one explanation for the high flotation of pyrite in alkaline ph conditions is its inadvertent activation by copper either dissolved from copper minerals present in the ore or added in the zinc circuit to activate the flotation of sphalerite bushell and krauss 1962 voigt et al 1994

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  • Chemistry Class 12 Ncert Solutions Chapter 6 General

    Chemistry Class 12 Ncert Solutions Chapter 6 General

    During the roasting of pyrite ore a mixture of and 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 if the sulphide ore of copper contains iron then silica is added as flux before roasting then combines with

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  • 2ndpuc Chemistry Question Bank Chapter6 General

    2ndpuc Chemistry Question Bank Chapter6 General

    Mar 01 2021 during roasting copper pyrites are converted into mixture of feo and cu 2 o to remove feo basic an acidic flux silica is added during smelting feo then combines with sio 2 to form ferrous silicate fesi0 3 slag which floats over molten matter thus the role of silica in the metallurgy of copper is to remove iron oxide as slag

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  • Ncert Solutions For Class 12 Chemistry Chapter 6  General

    Ncert Solutions For Class 12 Chemistry Chapter 6 General

    Jan 17 2021 answer during the roasting of pyrite ore a mixture of feo and cu 2 o 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 if the sulphide ore of copper contains iron then silica sio 2 is added as flux before roasting

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  • Neetchemistry General Principles And Processesof

    Neetchemistry General Principles And Processesof

    Assertion silica is added as a flux in reverberatory furnace in the extraction of copper from copper pyrites reason silica decreases the melting point of the ore and remove

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  • Coppermining Chemical Reactions

    Coppermining Chemical Reactions

    Roasting in roasting we change some of the cufes 2 to copper oxide remove some of the sulphur as sulphur dioxide we do this by heating the concentrated ore from froth floatation it is heated to betweem 500 c and 700 c in air the product from the roaster is called calcine it is a solid mixture of oxides sulphides and sulphates

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  • Blister Copper An Overview  Sciencedirect Topics

    Blister Copper An Overview Sciencedirect Topics

    Copper slag is produced during matte smelting and converting steps of pyrometallurgical production of copper from copper ores when silica is added it combines with the oxides to form silicates phases the chemical composition of slag varies with the types of furnace or process of treatment cooper 2005

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  • Chapter 21copper Production Sciencedirect

    Chapter 21copper Production Sciencedirect

    Jan 01 2014 21131 dead roasting and reduction in this path copper minerals are oxidized in the solid state to produce cu 2 o and fe 2 o 3 cu 2 o is then reduced to molten cu typically in a blast furnace charged with coke flux is also added to form a molten slag in which the iron oxides are removed

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  • Neet Chemistry Chapterwisemock Test  General Principles

    Neet Chemistry Chapterwisemock Test General Principles

    The minimum voltage required to electrolyse alumina in the hallheroult process is a 1575 v b 160 v c 1312 v d 262 v question 43 when copper ore is mixed with silica in a reverberatory furnace copper matte produced the copper matte contains a sulphides of copper ii and iron ii b sulphides of copper ii and iron iii

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  • Question Bank Forneet Chemistry Metallurgyself

    Question Bank Forneet Chemistry Metallurgyself

    When copper pyrites is roasted in excess of air a mixture of cuofeo is formed feo is present as impurity this can be removed as slag during reduction of feo the flux added to form slag is

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  • Ncert Solutions For Class 12 Chemistry Chapter 6

    Ncert Solutions For Class 12 Chemistry Chapter 6

    Copper matte is put in a silicalined converter to remove the remaining feo and fes present in the matte as slag fesio3 also some silica is added to the silicalined converter then a hot air blast is blown as a result the remaining fes and feo are converted to iron

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  • The Effects Of Oxidation Oncopper Sciencing

    The Effects Of Oxidation Oncopper Sciencing

    Apr 17 2018 copper is a versatile metal used in thousands of everyday products it oxidizes readily to form a distinctive coating known as patina the patina gives the statue of liberty its characteristic appearance but the oxidation of copper can also cause undesirable effects under some circumstances

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