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Solvometallurgical process for extraction of copper from chalcopyrite and other suldic ore minerals xiaohua li a wouter monnensb zheng li a jan fransaerb and koen binnemans a extraction of copper from sudic ores either by pyrometallurgy or hydrometallurgy has various limitations
A process for the extraction of copper from a sulphide copper ore or concentrate comprises the steps of subjecting the ore or concentrate to agitation leaching at an elevated temperature and pressure to obtain a resulting acidic leach liquor containing dissolved copper and reducing the acidity of the resulting acidic leach liquor by effecting percolation leaching of a bed of lowgrade copper
Mined from open pits copper ore must be crushed as part of the process that occurs between extraction and production using todays compact mining equipment copper ore is extracted from the mine after the ore is crushed its roasted which helps to convert sulfides to oxides the oxides are smelted to produce matte which then undergoes
The principal ore of copper is copper pyrite and copper is extracted from this ore the different steps in extraction of copper are crushing and concentration the ore obtained from mines are broken down into small piece by jaw crusher and then pulverized the ore being sulphide ore is concentrated by froth floatation process
The cuprex metal extraction process produces cathodegrade copper using a hydrometallurgical process based on chloride leaching of sulfide ore concentrates the process incorporates several novel steps to overcome the major problems associated with earlier chloridebased processes including mild leaching conditions using ferric chloride as leachant and solvent extraction of copper usinga
Processes using dilute sulphuric acid the first process vat leaching of highgrade copper oxide ore followed by ew of copper from the leach solution produced low quality copper cathode at relatively high cost in 1968 the tonnage of highgrade oxide ores was decreasing and vat leaching was on the decline
Jan 01 2016 the simplest method of copper extraction using sulfuric acid is applicable only to ores containing oxidized copper minerals such as malachite azurite and chrysocolla generally these processes are uneconomic in treating lowgrade copper ores particularly sulfide ores due to the high reagent consumption neutralization required before
Feb 02 2017 in addition acid consumption in the cementation process exceeds that in solvent extractionelectrowinning by about 15 tons for every ton of copper extracted and it is possible for the consumption of iron to be as high as 4 tons per ton of copper
Apr 09 2010 modern copper smelters use processed copper ore fed into a flash furnace typically fired by oxygen which produces blister copper being further processed in a converter furnace molten copper is poured from here into rectangular moulds the resulting ingots subjected to electrolysis producing a metal of 999 purity copper can be recycled indefinitely without the base metal being compromised
Apr 16 2021 copper extraction processxinhai for the copper extraction process here are the specific explanation about copper sulfide ore and copper oxide ore copper sulfide ore 1 before copper extraction the massive sulfide ore is crushed to about 12cm by jaw crusher or cone crusher
The early development of copper probably was most advanced in egyptas early as 5000 bce copper weapons and implements were left in graves for the use of the deaddefinite records have been found of the working of copper mines on the sinai peninsula about 3800 bce and the discovery of crucibles at these mines indicates that the art of extracting the metal included some refining
Solvent extraction electrowinning sxew also sometimes referred to as leach solvent extraction electrowinning lsxew for its convergence with the heap leaching process is a processing method whereby copper can be extracted from ores through hydrometallurgical means
Sgs minerals services technical paper 200851 2008 application of the sart process to heap leaching of goldcopper ores at maricunga chile kevan j r ford and robert d henderson kinross gold corporation and dr
Copper processing is a complicated process that begins with mining of the ore less than 1 copper and ends with sheets of 9999 pure copper called cathodes which will ultimately be made into products for everyday usethe most common types of ore copper oxide and copper sulfide undergo two different processes hydrometallurgy and pyrometallurgy respectively due to the different
A process for the extraction of copper from a copper ore or concentrate comprises first subjecting the ore or concentrate to agitation leaching at an elevated temperature and pressure in the presence of oxygen and water to obtain a resulting acidic leach liquor which contains dissolved copper the acidity of the resulting acidic leach liquor is then reduced by affecting percolation leaching of
Extraction of copper from sufidic ores either by pyrometallurgy or hydrometallurgy has various limitations in this study a solvometallurgical process for the extraction of copper from sulfidic ore minerals chalcopyrite bornite chalcocite and digenite was developed by using an organic lixiviant fecl 3 as oxidizing agent and ethylene glycol eg as organic solvent
Extraction and refining the extraction of copper from ore is normally carried out in three major steps the first step mineral processing is to liberate the copper minerals and remove waste constituentssuch as alumina limestone pyrite and silicaso that the copper minerals and other nonferrous minerals of value are concentrated into a product containing between 20 and 30 percent copper
Copper from the smelter is melted and cast as anodes the solution from the solvent extraction process moves to a plating operation 7 sulfide ore refining the final step in processing sulfide ore copper from the smelter is to make high purity copper cathodes 8 copper products amp many uses
Hydrometallurgical 2 copper production tables 61 and 62 provide capsule summaries of these processes 1 pyrometaiiurgy is the extraction of metai from ores and concentrates using chemical reactions at high temperatures 2 hydrometallurgy is the recovery of metais from ores using waterbased solutions as early as 6000 b c native copper
Jan 01 2016 the simplest method of copper extraction using sulfuric acid is applicable only to ores containing oxidized copper minerals such as malachite azurite and chrysocolla generally these processes are uneconomic in treating lowgrade copper ores particularly sulfide ores due to the high reagent consumption neutralization required before
An ore is a rock that contains enough of a metal or a metal compound to make extracting the metal worthwhile extraction methods the extraction method used depends upon the metals position in the
Feb 02 2017 in addition acid consumption in the cementation process exceeds that in solvent extractionelectrowinning by about 15 tons for every ton of copper extracted and it is possible for the consumption of iron to be as high as 4 tons per ton of copper
An associated process is biooxidation this is the oxidation of sulfide minerals associated with but not necessarily part of the mineral of interest to be extracted bioleaching is used today in commercial operations to process ores of copper nickel cobalt zinc and uranium whereas biooxidation is used in gold processing and coal
Jun 10 2019 for the copper extraction process here are the specific explanation about copper sulfide ore and copper oxide ore copper sulfide ore 1 before copper extraction the massive sulfide ore is crushed to about 12cm by jaw crusher or cone crusher this process may adopt multiple crushing stages which needs to cooperate with the vibrating screen
Apr 09 2010 modern copper smelters use processed copper ore fed into a flash furnace typically fired by oxygen which produces blister copper being further processed in a converter furnace molten copper is poured from here into rectangular moulds the resulting ingots subjected to electrolysis producing a metal of 999 purity copper can be recycled indefinitely without the base metal being compromised
Oct 11 2015 when reviewing methods of eliminating copper from gold ores we see that several methods have been suggested to eliminate copper from ores prior to cyanidationpreliminary extraction of the copper with sulphuric or sulphurous acids may be applicable to ores containing oxidized copper minerals such as malachite azurite and chrysocolla but these acids have but little effect on sulphide copper
The copper extracted from this process is mixed with the slag and is called matte copper due to its texture and appearance this mainly consists of cu2s which is reduced to pure metal by blasting matte copper with air the sulphur dioxide escapes the copper and this
Copper can be extracted from nonsulphide ores by a different process involving three separate stages reaction of the ore over quite a long time and on a huge scale with a dilute acid such as dilute sulphuric acid to produce a very dilute copperii sulphate solution concentration of the copperii sulphate solution by solvent extraction
The copper extraction process begins at an open cut mine where copper ore is blasted and removed via excavators and tip trucks the ore is fed to a crusher where it is broken down to a specified maximum size and passed through to a conveyor
Aug 26 2015 the copper oxide minimum minerals are dissolved by the acid to give a blue copper rich solution mainly of copper sulfate this solution is tapped off from the bottom of the pad and placed into big tanks with steel plates an electrical current is passed from the tank to the steel which is then electroplated with pure copper
Froth flo tation is the prevalent concentration method in the copper industry it separates the pulverized ore containing around 06 to 20 percent cop per into concentrates with 20 to 30 percent cop per plus tailings wastes of 005 to 01 percent copper 40
The copper extracted from this process is mixed with the slag and is called matte copper due to its texture and appearance this mainly consists of cu2s which is reduced to pure metal by blasting matte copper with air the sulphur dioxide escapes the copper and this
Copper can be extracted from nonsulphide ores by a different process involving three separate stages reaction of the ore over quite a long time and on a huge scale with a dilute acid such as dilute sulphuric acid to produce a very dilute copperii sulphate solution concentration of the copperii sulphate solution by solvent extraction
The copper extraction process begins at an open cut mine where copper ore is blasted and removed via excavators and tip trucks the ore is fed to a crusher where it is broken down to a specified maximum size and passed through to a conveyor
Aug 26 2015 the copper oxide minimum minerals are dissolved by the acid to give a blue copper rich solution mainly of copper sulfate this solution is tapped off from the bottom of the pad and placed into big tanks with steel plates an electrical current is passed from the tank to the steel which is then electroplated with pure copper
Froth flo tation is the prevalent concentration method in the copper industry it separates the pulverized ore containing around 06 to 20 percent cop per into concentrates with 20 to 30 percent cop per plus tailings wastes of 005 to 01 percent copper 40
