Role Of Sio2 In Extraction Of Copper From Copper Matte

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What is the role of sio2 in the extraction of copper from ...

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).

Describe the role of the following : (i) SiO2 in the ...

Nov 01, 2018· Describe the role of the following : (i) SiO2 in the extraction of copper from copper matte. (ii) NaCN in froth floatation process.

use of SiO2 in the extraction of copper from copper matte ...

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.

sio2 in the extraction of copper 】

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.

What is the Role of the Following Compounds- Sio2 in the ...

Role of SiO 2 in the extraction of copper from copper pyrites:. The copper matte containing Cu 2 S and FeS is put in silica lined converter in order to remove impurities as fusible slag. Som silica is also added and hot air blast is blown to convert remaining FeS to FeO, which is removed as slag with silica.

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON …

(SiO2, FeO, Fe3O4, CaO, Al2O3) and the content of copper in the matte on resulting copper content in the slag during smelting of the sulfide concentrates in the reverberatory furnace. When comparing results obtained with MLRA model calculations with values measured at industrial level high degree of fitting is obtained (R2 = 0.974).

What is the role of silica in extraction of Cu from 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 ...

12.3 Primary Copper Smelting

Converting the matte yields a high-grade "blister" copper, with 98.5 to 99.5 percent copper. Typically, blister copper is then fire-refined in an anode furnace, cast into "anodes", and sent to an electrolytic refinery for further impurity elimination. Roasting is performed in copper smelters prior to charging reverberatory furnaces. In roasting,

Metallurgy of copper - SlideShare

Dec 06, 2017· Hot air converts FeO to iron silicate (FeSiO3). FeO + SiO2 FeSiO3 (Slag) Cu2O + FeS Cu2S + FeO • Slag floats over the molten matte of copper. 9. BESSEMERIZATION • Matte contains Cu2S and some unreacted FeO along with silica as impurity. • It is converted into copper in a special furnace which is known as "Bessemer converter".

Tell me role of Silica in Metallurgy of Copper "? - askIITians

Tell me role of Silica in Metallurgy of Copper "? during the process of extraction of pure copper from copper pyrite,SiO2 acts as acidic flux which combines wi Learn to Create the Famous Tic Tac Toe Game in Our Free Robotics Webinar.

What is the Role of the Following Compounds- Sio2 in the ...

Role of SiO 2 in the extraction of copper from copper pyrites:. The copper matte containing Cu 2 S and FeS is put in silica lined converter in order to remove impurities as fusible slag. Som silica is also added and hot air blast is blown to convert remaining FeS to FeO, which is removed as slag with silica.

Copper Mining and Extraction Sulfide Ores

The liquid left is a mixture of copper sulfides and iron sulfides. It is called a matte. Stage 5: Conversion of matte to copper blister The liquid matte is oxidised with air to form blister copper in a converter. Blister copper from the smelter is poured into the anode casting moulds.

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON …

(SiO2, FeO, Fe3O4, CaO, Al2O3) and the content of copper in the matte on resulting copper content in the slag during smelting of the sulfide concentrates in the reverberatory furnace. When comparing results obtained with MLRA model calculations with values measured at industrial level high degree of fitting is obtained (R2 = 0.974).

METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER COPPER

Copper metal is extracted from molten matte through bessemerization . The matte is introduced in to Bessemer converter which uphold by tuyers. The air is blown through the molten matte. Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give molten copper.

Important Questions for Class 12 Chemistry Chapter 6 ...

Dec 06, 2019· Describe the role of (i) NaCN in the extraction of gold from gold ore. (it) SiO 2 in the extraction of copper from copper matte. (iii) Iodine in the refining of zirconium. Write chemical equations for the involved reactions. (Delhi 2010) Answer:

12.3 Primary Copper Smelting

Converting the matte yields a high-grade "blister" copper, with 98.5 to 99.5 percent copper. Typically, blister copper is then fire-refined in an anode furnace, cast into "anodes", and sent to an electrolytic refinery for further impurity elimination. Roasting is performed in copper smelters prior to charging reverberatory furnaces. In roasting,

Metallurgy of copper - SlideShare

Dec 06, 2017· Hot air converts FeO to iron silicate (FeSiO3). FeO + SiO2 FeSiO3 (Slag) Cu2O + FeS Cu2S + FeO • Slag floats over the molten matte of copper. 9. BESSEMERIZATION • Matte contains Cu2S and some unreacted FeO along with silica as impurity. • It is converted into copper in a special furnace which is known as "Bessemer converter".

Copper Slag for the Recovery of Metals and Valorisation of ...

In smelting, copper-rich matte containing sulphides and copper slag as by-product are formed [1]. For every ton of copper produced during smelting and refining operations, approximately 2.2–3 tons of fayalite slag is produced and the management of these significant quantities is di cult [2,3].

What is the role of silica in metallurgy of copper?, Chemistry

Related Discussions:- What is the role of silica in metallurgy of copper? Stoichiometry, Hydrazine, N2H4, reacts exothermically with hydrogen peroxid... Hydrazine, N2H4, reacts exothermically with hydrogen peroxide, H2O2, to produce gaseous nitric acid and water vapour.

What is the role of silica in the extraction of copper ...

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).

2008:111 MASTER'S THESIS Distribution of Elements in Slag ...

copper. Finally, this achieved yield is refined to result pure copper metal (≈99.998% Cu) [4]. In Fe-O-S ternary system and in copper making temperature range, FeS is miscible with FeO and Fe3O4. In order to eliminate this miscibility as well as to achieve maximum separation between matte and slag during smelting, around 30% of the

Copper extraction - Wikipedia

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 (concentrated).

Copper Flotation - Mineral Processing & Metallurgy

Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the …

Extraction Of Copper | Mining, Concentration, Smelting ...

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 ...

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON …

(SiO2, FeO, Fe3O4, CaO, Al2O3) and the content of copper in the matte on resulting copper content in the slag during smelting of the sulfide concentrates in the reverberatory furnace. When comparing results obtained with MLRA model calculations with values measured at industrial level high degree of fitting is obtained (R2 = 0.974).

Extraction Of Copper | Mining, Concentration, Smelting ...

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 ...

12.3 Primary Copper Smelting

Converting the matte yields a high-grade "blister" copper, with 98.5 to 99.5 percent copper. Typically, blister copper is then fire-refined in an anode furnace, cast into "anodes", and sent to an electrolytic refinery for further impurity elimination. Roasting is performed in copper smelters prior to charging reverberatory furnaces. In roasting,

Important Questions for Class 12 Chemistry Chapter 6 ...

Dec 06, 2019· Describe the role of (i) NaCN in the extraction of gold from gold ore. (it) SiO 2 in the extraction of copper from copper matte. (iii) Iodine in the refining of zirconium. Write chemical equations for the involved reactions. (Delhi 2010) Answer:

Copper extraction - Wikipedia

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 (concentrated).

RECENT ADVANCES IN THE EXTRACTION OF COPPER, …

separation of iron and copper and extraction of copper are achieved in the converting step without external heat supply or reducing agent. This feature makes the matte route of extraction of copper economical and universally accepted. The copper produced in the converting stage is called blister copper due to its blistery appearance.

Copper Slag for the Recovery of Metals and Valorisation of ...

In smelting, copper-rich matte containing sulphides and copper slag as by-product are formed [1]. For every ton of copper produced during smelting and refining operations, approximately 2.2–3 tons of fayalite slag is produced and the management of these significant quantities is di cult [2,3].

In the extraction of copper, the copper matte is a mixture of:

The chemical formula of copper matte is C u 2 S + F e S. It is a combination of copper sulphide and iron sulphide. It is a phase in which extracted metal is converted into crude metal which is a final product. 8 0 − 7 0 % of copper matte is used 8 0 − 9 5 %. 5 − 1 7 % metallic copper, F …

Copper Flotation - Mineral Processing & Metallurgy

Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the …

Extractive Metallurgy of Copper - William G. Davenport ...

This new edition has been extensively revised and updated since the 3rd edition published in 1994. It contains an even greater depth of industrial information, focussing on how copper metal is extracted from ore and scrap, and how this extraction could be made more efficient. Modern high intensity smelting processes are presented in detail, specifically flash, Contop, Isasmelt, Noranda ...

Pressure oxidative leaching of lead-containing copper matte

Mar 01, 2009· The pressure oxidative leaching of lead-containing copper matte is studied systematically. The effects of leaching time, oxygen partial pressure, leaching temperature, agitation speed, acid addition and initial Cu 2+ concentration on the extraction of copper and iron are investigated. The effect of initial Cu 2+ concentration is insignificant compared to the other reaction …

Extractive Metallurgy of Copper - A.K. Biswas, W.G ...

Oct 22, 2013· A completely revised and up-to-date edition containing comprehensive industrial data. The many significant changes which occurred during the 1980s and 1990s are chronicled. Modern high intensity smelting processes are presented in detail, specifically flash, Contop, Isasmelt, Noranda, Teniente and direct-to-blister smelting. Considerable attention is paid to the control of SO2 emissions …

METALLURGY OF COPPER.docx - METALLURGY OF COPPER …

View METALLURGY OF COPPER.docx from CHE 455 at Institute of Business Management, Karachi. METALLURGY OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS2). Chalocite (Cu2S) or

(PDF) General thermodynamic model of copper solubility in ...

Copper loss, that is function copper solubility and slag volume, in the silica saturated SiO2-FeOx binary slag is minimally equilibrated with less than 66% copper matte while copper loss in the 50 ...