Pdf A Review Of The Flotation Of Copper Minerals, Copper is most commonly present in the earths crust as copperironsulphide and copper sulphide minerals for example chalcopyrite cufes2 bornite cu5fes4 and chalcocite cu2s Copper Sulphide Ore Processing
Get PriceApr 23 2011 both ore types can be economically mined however the most common source of copper ore is the sulfide ore mineral chalcopyrite which accounts for about 50 percent of copper production
The four major steps in the production of marketable copper are mining concentrating smelting and refining in a few instances however leaching takes the place of concentrating smelting and refining at present although considerable leaching and directsmelting ores are produced the bulk of the copper ore mined is concentrated the milling of copper ores as practiced in the larger
If sulfide ores containing iron and copper are to be smelted an understanding of both the iron and the copper systems is needed again as in figure 213 for the cuso system the calculations are limited to oxidation by industrial oxygen so that the pressure of so 2 will be about 1 atm except where oxygen pressure is appreciable near
Copper ores an ore is a rock containing enough valuable mineral to make it worth extracting in the case of copper it is worth extracting when there is about 2 kg of copper per 1000 kg of ore 02 copper minerals are found in over one hundred varieties although only a few have been worked for copper on a large scale
A method for extracting copper from a mineral feed containing copper sulphide mineral 1 which involves crushing and blending the feed 2 6 10 followed by leaching of the feed in an autoclave 20 the conditions in the autoclave are controlled so that the presence of oxygen at superatmospheric oxygen pressure maintains the ratio of ferrous to ferric ions at a level so as to facilitate the
Metallic sulfide mining aka hard rock mining is the practice of extracting metals such as nickel gold and copper from a sulfiderich ore body sulfides are a geologic byproduct of mining in this area and by exposing sulfides to the air and water in our atmosphere sulfuric acid can be created threatening to poison the nearby water
For copper sulfide ore electrolysis is the final stage in the process of pyrometallurgy in which anode copper slabs are hung in a large tank full of a copperbased electrolyte solution and an electric current is applied resulting in the plating of copper onto 999 pure copper cathodes
Jul 09 2019 1 types of copper sulfide ore 1 single copper mineral its ore characteristic is relatively simple and the only useful component that can be recycled is copper the gangue minerals are mainly quartz carbonate and silicate 2 coppersulfur ore called copperbearing pyrite in addition to copper minerals iron sulfide can be recovered and the main mineral of sulfur is pyrite
Steel blanks similar to the sulphide ore refining process an electrical charge is applied to the liquid causing the copper to attach to the sheets over approximately 10 days the starter sheets fatten to a width of 25 centimetres forming 999 percent copper cathodes this process is
Extracting copper from other ores 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
Metallic sulfide mining aka hard rock mining is the practice of extracting metals such as nickel gold and copper from a sulfiderich ore body sulfides are a geologic byproduct of mining in this area and by exposing sulfides to the air and water in our atmosphere sulfuric acid can be created threatening to poison the nearby water
Sulphide ores are the major source of valuable metals such as copper lead zinc and nickel as well as gold silver and platinum group metals pgms and flotation is the dominant industrial process to recover these metals via the production of a sulphide concentrate
May 30 2020 the specific process for selecting copper ore depends mainly on the material composition structure and copper occurrence state of the original copper ore generally speaking copper ore can be divided into three categories copper sulfide ore copper oxide ore and natural copper types minerals copper sulfide ore chalcopyrite bornite and
The process used to treat sulfide copper ores begins at the mine site where the copperbearing minerals are physically separated from the rest of the rock the flow diagram below shows how the percentage of copper increases as the ore is refined first physically by froth flotation then chemically by smelting and finally electrolytic refining
Sulphide oxide and mixed ore are fed to separate mineral processing circuits tailored for recovery of the dominant copper minerals in each after comminution to a target grind size of 80 passing 150 m each ore type is subjected to flotation to recover the copper sulphide minerals chalcopyrite bornite chalcocite covellite
Process is simple copper carbonates and oxides are present mainly in the oxidation zone oxide hats above the sulphide deposits sulphide copper minerals chalcocite covellite and chalcopyrite which are mostly present in sulphide ores of copper can be leached only in the presence of oxidants or with the help of bacteria from the genus
At the new ktc circuit ore from the kov openpit is mixed with the ore from mashambe east to produce a sulphide prefloat concentrate and oxide form tailings the resultant concentrate and tailings are forwarded to the luilu metallurgical plant for further processing to produce copper cathode metal and cobalt hydroxide cake
The kansanshi process plant has been designed to operate with a high degree of flexibility to suit the various ore types delivered from the mined orebodies the three main process routes are for treating sulphide mixed and oxide ores independently
Copper is most commonly present in the earths crust as copperironsulphide and copper sulphide minerals for example chalcopyrite cufes2 bornite cu5fes4 and chalcocite cu2s
A basic principle of coppersulfide nickel ore process is that it is better to let the coppers assimilate into the nickel ore because it is easier to recovery cooper from the nickel concentrate the process has a best advantageget the copper concentrate that has a low nickel rate directly
Sulfide ores 052 cu i comminution 1 ii i fiotation i concent rates 2030 cu 1 61fiow sheets for copper production hydrometalluigical oxide and sulfide ores 0320 cu leaching pregnant ieachate 2050 cu precipitation solvent extract ion i smelting i i cement copper 1 8590 cu matte 5075 cu ii i converting i anode
Steel blanks similar to the sulphide ore refining process an electrical charge is applied to the liquid causing the copper to attach to the sheets over approximately 10 days the starter sheets fatten to a width of 25 centimetres forming 999 percent copper cathodes this process is