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extraction of cu from copper pyrites

Extraction of Copper from Copper pyrite Grade 12 Science

As long as Fes is present in the mixture Cu 2 O can’t be formed as copper has higher affinity for sulphur than oxygen. In molten state FeS & Cu 2 S are missible and the molten mixture of Cu 2 S and FeS is called copper malte. The lower end of blast furnace has two openings for slag and copper matte.

Extraction of copper from copper pyrites (CuFeS2

2. Copper pyrites is converted to a mixture of Cu 2 S and FeS 2CuFeS 2 + O 2-----> Cu 2 S + 2FeS + SO 2 3. The sulphides of Cu and Fe are partially oxidized 2Cu 2 S + 3O 2 <=====> 2Cu 2 O + 2SO 2 2FeS + 3O 2 <=====> 2FeO + 2SO 2 Smelting in extraction of copper The roasted ore mixed with silica as flux is heated in a blast furnace by a blast of

How Extraction of Copper from Copper Pyrites? QS Study

Extraction of copper from copper pyrites involves the following steps Cu 2 O + FeS → Cu 2 S + FeO; FeO + SiO 2 → FeSiO 3 (fusible slag) As a result of smelting, two separate molten layers are formed at the bottom of the furnace. The upper layer consists of slag and is removed as a waste while the lower layer is called matte.

Why is the extraction of copper from pyrites more

Oct 13, 2019· Therefore, H 2 and C cannot reduce Cu 2 S to Cu. On the other hand, the Gibbs free energy of formation of Cu 2 O is greater than that of CO. Hence, C can reduce Cu 2 O to Cu. C (s) +Cu 2 O (s) → 2Cu (s) + CO (g) Hence, the extraction of copper from its pyrite ore is difficult than from its oxide ore through reduction.

Extraction of Cu from Copper Pyrite: Exam में आएगा YouTube

Jan 28, 2018· For 12th and B.Sc 2nd year students

作者: Devesh Kumar Sharma

EXTRACTION OF COPPER

EXTRACTION OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS 2). Chalocite (Cu 2 S) or copper glance. Malachite green [CuCO 3.Cu(OH) 2]. Azurite blue [2CuCO 3.Cu(OH) 2]. Bornite (3Cu 2 S.Fe2S 3) or peacock ore. Melaconite (CuO) etc. EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper

Extraction of Copper QS Study

The extraction process involves the following steps: (i) Condensation of ore: Only 2≈3% Copper (Cu) is present in copper pyrites (CuFeS 2). After concentrating it by oil-froth floatation process, the amount of Cu will be 20≈30%. copper pyrites) and similar sulphide ores are the commonest ores of copper.

Extraction of Copper and Zinc Chemistry, Class 12

May 15, 2020· Occurrence and Extraction of Copper Occurrence of Copper. It occurs as native copper as well as in combined state.The main ores of copper are: (i) Copper glance Cu 2 S (ii) Copper pyrites CuFeS 2 (iii) Malachite Cu(OH) 2 CuCO 3 (iv) Cuprite or (Rubby copper) Cu 2 O (v) Azurite 2CuCO 3.Cu(OH) 2. Extraction of Copper. It is mainly extracted from

Extraction Of Copper Mining, Concentration, Smelting

Copper Mining: The commonest ore used in the extraction of copper is Chalcopyrite (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. Concentration of

METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER

Chalocite (Cu2S) or copper glance. Malachite green [CuCO3.Cu(OH)2]. Azurite blue [2CuCO3.Cu(OH)2]. Bornite (3Cu2S.Fe2S3) or peacock ore. Melaconite (CuO) etc. EXTRACTION OF COPPER FROM SULPHIDE ORE. Large amount of copper are obtained from copper pyrite (CuFeS2) by smelting. Ores containing 4% or more copper are treated by smelting process.

Extraction of copper from copper pyrite (CuFeS2) involves

Blister Cu is about_____. MEDIUM. View Answer. Name the process used for the formation of blister C u by following reaction :(unbalanced reactions) Why does copper obtained in the extraction from copper pyrites have a blistered appearance? MEDIUM. View Answer.

Extraction of Copper QS Study

The extraction process involves the following steps: (i) Condensation of ore: Only 2≈3% Copper (Cu) is present in copper pyrites (CuFeS 2). After concentrating it by oil-froth floatation process, the amount of Cu will be 20≈30%. copper pyrites) and similar sulphide ores are the commonest ores of copper.

Extraction of Copper Quick Science Help

May 25, 2013· Introduction to extraction of copper The ores of copper are Copper pyrite CuFeS2 Azurite blue 2CuCO3 Cu(OH)2 Malachite CuCO3 Cu(OH)2 Copper is extracted from copper pyrites.The rocky impurities including silica and mud along with the ore is called gangue which has to be removed: Please express your views of this topic Copper Sulfate Molar Mass

In The Extraction Of Cu From Copper Pyrite The Processes

Sulphide ores such as chalcopyrite are converted to copper by a dissimilar method from silicate, carbonate or sulphate ores. The principal ore of copper is copper pyrite and copper is extracted from this ore. Extraction of copper from copper pyrites involves the following steps Read More.

Slag obtained during the extraction of copper from copper py

Slag obtained during the extraction of copper from copper pyrites is mainly composed of (A) Cu2S (B) FeSiO3 (C) CuSiO3 (D) SiO2. Check Answer and Solu

extraction copper from copper pyrites

Extraction of copper from copper pyrites (CuFeS2 Extraction of copper from copper pyrites (CuFeS2) Copper is extracted from its principal ore copper pyrites (CuFeS 2). The ore is concentrated by froth flotation process. The concentrated ore is roasted in

Copper is extracted from copper pyrites. After roasting

Click here👆to get an answer to your question ️ 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

What is oxidation state of copper in copper pyrites? Quora

CuFeS2 or copper pyrite is a lattice level combination of Cu(I) and Fe(III) sulphides. Structure is similar to that of ZnS (sphalerite form) in which Cu+ and Fe3+ ions alternately substitute for Zn2+. The original sphalerite is cubic, whereas this...

Chalcopyrite Wikipedia

Chalcopyrite (/ ˌ k æ l k ə ˈ p aɪ r aɪ t,-k oʊ-/ KAL-ko-PY-ryt) is a copper iron sulfide mineral that crystallizes in the tetragonal system. It has the chemical formula CuFeS 2.It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale.Its streak is diagnostic as green tinged black. On exposure to air, chalcopyrite tarnishes to a variety of oxides, hydroxides

The Extraction of Copper Chemistry LibreTexts

Aug 21, 2020· Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of

Copper Extraction from Sulfide Ores Latest Contents

This process is used for the extraction of copper from low grade sulfide ore. In this process, the crushed and ground ore in bulk (about 100,000 tons) is exposed to air and water in big tanks. The air in the presence of water gradually oxidizes copper and iron sulphides to their surphides.

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

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).

In the extraction of copper from its sulphide ore, the

In a Bessemer converter, copper pyrites are oxidised to FeO and Cu 2 O, FeO is slagged off. Cu 2 O reacts with Cu 2 S left unoxidised to give Cu. 2Cu 2 S + 3O 2 → 2Cu 2 O + 2SO 2 ↑ 2Cu 2 O + Cu 2 S → 6Cu + SO 2 ↑ Thus, extraction of Cu involves bessemerization