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Production of copper from sulfide ores

  • Copper Mining and Extraction Sulfide OresThe smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing su

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copper production how is copper made?sulfide copper oresoxide copper oresinsitu leachingproducing copper from recycled sourcesvirtually all sulfidetype copper ores, including chalcocite (cu2s), chalcopyrite (cufes2) and covellite (cus), are treated by smelting. after crushing the ore to a fine powder, it is concentrated by froth flotation, which requires mixing the powdered ore with reagents that combine with the copper to make it hydrophobic. the mixture is then bathed in water along with a foaming agent, which encourages frothing.see more on thoughtco estimated reading time 7 minssierrita mine located in arizona Xinhaimcmorannorth america sierrita description morenci is an openpit copper mining complex. did you know? we have expanded our mining and milling capacity at morenci to process additional sulfide ore identified through exploratory drilling. the project targets average incremental annual copper production of approximately 225 million pounds through increases in milling rates to 1, metric tons per daymanufacturing pper orecopper production how is copper made? sulfide copper oresoxide copper oresinsitu leachingproducing copper from recycled sources virtually all sulfidetype copper ores, including chalcocite (cu2s), chalcopyrite (cufes2) and covellite (cus), are treated by smelting. after crushing the ore to a fine powder, it is concentrated by froth flotation, which requires mixing the powdered ore withcopper sulfide an overview sciencedirect topicsthe common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper that is cast into slablike anodes. principal impurities are iron and precious metals (g and silver)nstruction refractorylined steelwhat is copper concentrate? arij tradingcopper wire and cable, however, account for half of the worlds copper production. copper sulfide ores must be concentrated before they can be economically transported and smelted. the universal technique for this concentration is the froth flotation of finely ground ore.treatment of mixed sulfide oxide ores of coppersulfuric acid as a solventtreatment of oxidized copper by agitationsulfur dioxide and ammonia as solventsiron salts as solventsother solvents for oxidized coppercontrol of temperature during sulfationthe precipitantelectrolysissulfurdioxide precipitationhydrogen sulfide as precipitantdissolving oxidized copper minerals in sulfuric acid is an ancient metallurgical method, but it is only within the past decade that this operation has taken a place in major operations of copper metallurgy. at the plant of the new cornelia copper co., the oxidized minerals are dissolved from the ore with sulfuric acid in large vats, following crushing to about 3mesh. the solution, containing copper, together with iron, alumina and the other impurities that dissolvsee more on 9metallurgist estimated reading time 10 minscopper recovery from lean sulfide ores steel corp,uscopper is recovered from ores containing about 10 percent copper in the form of a sulfide in the presence of significant amounts of iron and nickel, by sulfatizing roasting the ore in an atmosphere including 5 percent so 2 at a temperature of from about 580°c to about 625°c and leaching soluble copperproduction costs, porphyry copper mines, westernari zona geological society digest, volume xi , october 78 9. production costs, porphyry copper mines, western united states by harry j. winters, jr. 1 abstract the cost of copper produced from sulfide concentrates from most united states porphyry copper mines exceeds 0.60 per pound. with rare exception the cost of production from new mines will exceed 0.70 per pound.copper mining and extraction oxide orpper mining and extraction oxide ores. copper is refined from ores in the ground, either through underground or openpit mines. most of the copper ores mined today are oxide or sulfide ores. extraction of sulfide ores is covered in more detail in copper mining and extraction sulfide ores , but is introduced here because an

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Advantages of production of copper from sulfide ores

copper sulfide flotation mineral processing metallurgyapr , · copper minerals usually occur in low grade deposits and require concentration prior to smelting. the method and degree of concentration depends on smelter location and schedules, together with the nature of the ore deposit. sulphide copper ores generally occur with pyrite, pyrrhotite, arsenopyrite and molybdenite, and with g and silver. a complete copperiron separation may not always be essential for the maximum economic recovery and often is tied to the distributionestimated reading time minscodelco begins using bacteria to make lowgrade oresaug 26, · bioleaching technology that uses bacteria to extract copper from lowgrade mineral is ready after s of development for use in chile, potentially boosting production at world no. 1 copper minernickel smelting, producingmetalpediain hydrometallurgical processes, nickel sulfide ores undergo flotation (differential flotation if ni/fe ratio is too low) and then smelted. after producing the nickel matte, further processing is done via the sherrittgordon process. first, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickelcopper mining and processing processing copper oresa. processing of oxide oreb. processing of sulfide orec. recycling coppersulfide ores are generally processed using pyrometallurgy, the extraction and purification of metals by processes involving the application of heat. this process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps 1) froth flotation, 2) thickening, 3) smelting, and 4) electrolysis. following mining, transporting, and crushing to a consistent gravel or golf ballsize, the crushed ore is further processed at a mill using secondary crushers, and reduced to pebtypes of copper deposits in the world an investor'ssep 01, · currently, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production. sulfide ores are processed via froth floatationcopper extraction overviewsulfide smeltinghistoryconcentrationfroth flotationhydrometallurgical extractionconcentrate and copper marketingsee also

until the latter half of the th century, smelting sulfide ores was almost the sole means of producing copper metal from mined ores (primary copper production). davenport, et al, noted in 02 that even then 80% of global primary copper production was from copperironsulfur minerals and that the vast majority of these were treated by smelting.
copper was initially recovered from sulfide ores by directly smelting the ore in a furnace. the smelters were initially located near the mines to minimize the cost of transport. this avoided the prohibitive costs onew content will be added above the current area of focus upon selection

until the latter half of the th century, smelting sulfide ores was almost the sole means of producing copper metal from mined ores (primary copper production). davenport, et al, noted in 02 that even then 80% of global primary copper production was from copperironsulfur minerals and that the vast majority of these were treated by smelting.
copper was initially recovered from sulfide ores by directly smelting the ore in a furnace. the smelters were initially located near the mines to minimize the cost of transport. this avoided the prohibitive costs of transporting the waste minerals and the sulfur and iron present in the coppercontaining minerals. however, as the concentration of copper in the ore bodies decreased, the energy costs of smelting the whole ore also became prohibitive, and it became necessary to concentrate the ores first.
initial concentration techniques included handsorting and gravity concentration. they resulted in high losses of copper. consequently, the development of the froth flotation process was a major step forward in mineral processing. it made possible the development of the giant bingham canyon mine in utah.
in the twentieth century, most ores were concentrated before smelting. smelting was initially undertaken using sinter plants and blast furnaces, or with roasters and reverberatory furnaces. roasting and reverberatory furnace smelting dominated primary copper production until the 60s.
the roasting process is generally undertaken in combination with reverberatory furnaces. in the roaster, the copper concentrate is partially oxidised to produce "calcine" and sulfur dioxide gas. the stoichiometry of the reaction which occurs is
roasting generally leaves more sulfur in the calcined product (% in the case of the roaster at mount isa mines) than a sinter plant leaves in the sintered product (about 7% in the case of the electrolytic refining and smelti · text under ccbysa licensecopper mining and extraction sulfide oresthe smelter for sulfide ores produces sulfur dioxide gas. this is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. scrubbing sulfur dioxide also protects the environment. for example feo(s) + sio 2 (s) feo.sio 2 (slag) this is very similar tobacterial community in copper sulfide ores inoculated andbacterial community in copper sulfide ores inoculated and leached with solution from a commercialscale copper leaching plant. espejo rt, romero j. most copper bioleaching plants operate with a high concentration of sulfate salts caused by the continuous addition of sulfuric acid and the recycling of the leaching solution.nickel sulfide versus laterite the hard sustainabilityglobally, the bulk of historic production has been derived from sulfide ores, while the majority of nickel resources are contained in laterite ores. the difference between production and resources is due mainly to the difficulty associated with processing laterite compared to sulfide ores leading to a historical preference for sulfide ores.

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The case of production of copper from sulfide ores

nickel processing extraction and refining britannicanickel processing nickel processing extraction and refining the extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. the major differences in equipment are the use of highertemperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickelcopper copper production tu delftcopper production about 80 % of primary copper production comes from lowgrade or poor sulfide ores. after enrichment steps, the copper concentrates are usually treated by pyrometallurgical methods. generally, copper extraction follows the sequence (see figure below) 1. beneficiation by froth flotation of ore to give coppertenorm copper mining and production wastes us epamining and processing methodswaste generationdisposal and reuseepa and the statesores that contain copper in the u.s. are typically mined in large, openpits. copper processing facilities are usually located near mining or extraction sites. significant waste volumes are associated with copper production. mine wastes may contain radionuclides due to their natural presence in ores and can be a source of tenorm. uranium, which may be colocated with copper ore, may also be recovered as a side stream, if economical. however, in the united states this is not a general practice. learn more about uranium mining. tus3767543a process for the electrolytic recovery ofan improvement in the ferric chloride leach recovery of copper from its sulfide ores which comprises recovery of the copper from the leach solution after removal of sulfur by electrolysis rather than by conventional cementation with added iron. us3767543a process for the electrolytic recovery of copper from its sulfide ores google patentssulfide ores an overview sciencedirect topicscopper, zinc and nickel are recovered from the pregnant leach solution by sequential hydrogen sulfide precipitation of separate metal sulfide precipitates. the heaps are typically leached for 1.5 s. the planned production of nickel in the sulfide precipitate is approximately 50 tonnes per nstruction refractorylined steelprocess for extracting copper from sulfide ores 2. the process according to claim 1, wherein said supply of sulfur dioxide bearing gases is provided by the roasting of a mineral sulfide producing a calcine and sulfur dioxide bearing gases. 3. the process according to claim 2, wherein said mineral sulfide comprises a mixed iron sulfide and copper sulfide ore. 4.

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