why is extraction of copper from pyrites more difficult than
Jun 17, 2007 · It is somewhat complicated. I recommend reading the Wikipedia article below for more detail. A simplified explanation (perhaps overly simplified); the concentration of copper in most ore is fairly low and it needs to be concentrated for extraction, oxide ores can be concentrated relatively inexpensively by leaching with sulfuric acid, while sulfide ores are resistant to leaching and a more
Inquire NowThe Extraction of Copper - Chemistry LibreTexts
The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite (92;(CuFeS_292;)) 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.
Inquire NowMETALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER COPPER
Blocks of blister copper are used as anodes and thin sheets of pure copper act as cathodes. The cathode plates are coated with graphite in order to remove depositing copper. The electrolyte is copper sulphate (CuSO4) mixed with a little amount of H2SO4 to increase the electrical conductivity.
Inquire NowCopper 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.
Inquire NowOccurrence and extraction of copper form copper pyrites
Extraction. The extraction of copper also involves many steps. The ore used for extraction is copper pyrites. This ore is crushed, concentrated and then heated in the presence of air. During heating the moisture gets expelled and the copper pyrites gets converted to ferrous sulphide and cuprous sulphide.
Inquire NowHow Extraction of Copper from Copper Pyrites? - QS Study
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 Crushing and concentration
Inquire NowChapter 6 Copper Production Technology
Chapter 6 Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two dec-ades of this century, whenopen pit mining, flo- tation concentration,and the reverberatory smelter were adapted to porphyry copper ores. With the exception of leaching-solvent extrac-
Inquire NowWhat 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).
Inquire NowExtraction of Copper from Copper Pyrite | Lets Learn Nepal
Copper occurs both in native state as well as in combined state. The chief ore of copper are: Copper Pyrite (CuFeS2) Cuprite (Cu2O) Cupper Glance (Cu2S) Malachite [CuCO3.Cu(OH) 2] Extraction of copper: Copper is extracted from is chief ore, copper pyrite. The various steps involved in the extractions are: a. Crushing and concentration: The
Inquire NowHow to Separate Gold from Pyrite
In general, pyrites yields only a small proportion of its gold contents if it is run over the amalgamated plates, and if it is ground very fine in a pan with mercury the percentage extraction is better. Among the old processes used for the amalgamation of the gold in pyrites may be mentioned the treatment in revolving wooden barrels with
Inquire NowExtraction Of Copper And Zinc From Their Oxides
As a consequence, the copper so obtained has a blistered appearance. Hence, the product is called blister copper. Blister copper contains 98 per cent copper and is refined through electrolysis. Extraction of zinc: Zinc occurs widely in nature in the form of sulphide, oxide and carbonate ores.
Inquire Nowcopper extraction and purification
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.
Inquire NowChemistry of Copper - Chemistry LibreTexts
The extraction of copper also involves many steps. The ore used for extraction is copper pyrites, which is crushed, concentrated and then heated in the presence of air. During heating the moisture gets expelled and the copper pyrites gets converted to ferrous sulfide and cuprous sulfide. 92;[ 2CuFeS_2 + O_2 92;rightarrow Cu_2S + 2FeS + SO_2 92;]
Inquire NowExtraction of Copper and Aluminium Study Material for IIT
Extraction of Copper. The chief and important ore of copper from which the metal is most isolated is copper pyrites (CuFeS 2). Froth floatation process is used for concentrating the ore. The powdered ore is suspended in water and after adding little pine oil is stirred by means of air.
Inquire NowSlag 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 Solution for above question from Chemistry in General Principles and Processes of Isolation of Elements - Tardigrade
Inquire NowExtraction of copper from copper pyrites (CuFeS2) | Mastering
2. Copper pyrites is converted to a mixture of Cu 2 S and FeS 2CuFeS 2 + O 2-----gt; Cu 2 S + 2FeS + SO 2 3. The sulphides of Cu and Fe are partially oxidized 2Cu 2 S + 3O 2 lt;=====gt; 2Cu 2 O + 2SO 2 2FeS + 3O 2 lt;=====gt; 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
Inquire NowChalcopyrite - Wikipedia
Chalcopyrite (/ k æ l k p a r a t,-k o-/ 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.
Inquire Nowcopper (Cu)
Extraction. Most copper is extracted from copper pyrites, also known as chalcopyrite. The raw copper extracted from ores is not pure enough for electrical purposes and is further purified by electrolysis.
Inquire NowExtraction of Copper - QS Study
The extraction process involves the following steps: (i) Condensation of ore: Only 23% Copper (Cu) is present in copper pyrites (CuFeS 2). After concentrating it by oil-froth floatation process, the amount of Cu will be 2030%. copper pyrites) and similar sulphide ores are the commonest ores of copper.
Inquire NowExtraction 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 sulfides.The percentage of copper in the actual ore is too low for direct extraction of copper to be viable.
Inquire NowWhy is the extraction of copper from pyrites more difficult
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.
Inquire NowChalcopyrite - Wikipedia
Chalcopyrite (/ k æ l k p a r a t,-k o-/ 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.
3.5 Scalenohedral (42m), H-M symbol: (4 2m) Opaque TetragonalInquire NowImportant Questions for Class 12 Chemistry Chapter 6 General
Dec 06, 2019 · (b) Why does copper obtained in the extraction from copper pyrites have a blistered appearance? (c) What is the role of depressants in the froth floatation process? (All India 2016) Answer: (a) Electrolytic refining. Here the impure metal is made to act as anode and a strip of the pure metal is used as cathode.
Inquire NowExtraction of Copper from Copper pyrite | Grade 12 Science Notes
As long as Fes is present in the mixture Cu 2 O cant be formed as copper has higher affinity for sulphur than oxygen. In molten state FeS amp; 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.
Inquire NowNotes OCCURRENCE AND EXTRACTION OF METALS
MODULE - 6 Occurrence and Extraction of Metals Chemistry of Elements Copper India does not have rich copper ore deposits. The total reserves of the ore in the country are estimated around 60 crore tonnes. Major ore producing areas are Singhbum district (Bihar), Balaghat
Inquire NowExtraction Of Copper From Copper Pyrites
Why Is The Extraction Of Copper From Pyrites More . The gibbs free energy formation f g of cu 2 s is less than that of h 2 s and cs 2erefore, h 2 and c cannot reduce cu 2 s to cuon the other hand, the gibbs free energy formation of cu 2 o is greater than that of co hence, c can reduce cu 2 o to cuc s cu 2 o s 2cu s co g hence, the extraction of copper from its pyrite ore is difficult than from
Inquire NowCopper: Occurrence, principles of extraction, Properties and Uses
ii) Cuprite or Ruby copper, Cu 2 O. iii) Copper glance, Cu 2 S. The chief ore of copper is copper pyrite. It yields nearly 76% of the world production of copper. Extraction from copper pyrites . Extraction of copper from copper pyrites involves the following steps. 1. Crushing and concentration
Inquire NowWhat are the important ores of copper? How is copper
The main copper sulphide minerals are: Chalcopyrite (CuFeS2) Chalcocite (Cu2S), Covellite (CuS), Bornite (Cu5FeS4), Tetrahedrite ((Cu,Fe)12Sb4S13) and Tnargite (Cu3AsS4).
Inquire Now- process floe for copper extraction
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