copper sulfide uses

Eng.,19', 204 (2006). [Cu] = 0.01 M; [Fe] = [S] = 0.1 M. (Peters, 1976). Roasting of Cobalt–Copper Sulfide Concentrates to Soluble Sulfate Calcine. Flotation is commonly used to concentrate copper sulfide minerals, such as chalcopyrite (CuFeS2). Deposition of slags of the presented mineral composition in the environment may produce certain effects in surface and/or ground waters. Felipe D. Sepulveda, ... Edelmira D. Gálvez, in Computer Aided Chemical Engineering, 2012. The flotation is made selective by using reagents, which make the Cu-sulfide minerals water-repellant (hydrophobic) while leaving the other minerals wetted (hydrophilic). The principal difference lies in what occurs at the anodes: oxygen evolution at the electrowinning anodes, dissolution of copper – the reverse of reaction [1], at the electrorefining anodes. Both are constructed of acid resistant concrete and contain cathodes (connected in parallel) interleaved with anodes (also connected in parallel). Copper sulfate helps in eradicating snails that harbor the parasite responsible for … TABLE 30.4. The copper sulfate test is a visual method of determining the existence of free iron in specifically stainless steel. J.W. Fig. Copper sulfate is an eff… Simultaneously, as a result of reaction (3), Cu (which in bornite can have the valence of 2+ or 1+) is reduced to metallic copper. Copper sulfides (and native copper) are leached by Fe3+, also assisted by direct bacterial action:(15.11a)2FeS2+7O2+2H2O→2Fe2++2SO42−+2H2SO4(15.11b)O2+4Fe2++4SO42−+2H2SO4→4Fe3++6SO42−+2H2O(15.11c)Cu2S+10Fe3++15SO42−+4H2O→2Cu2++10Fe2++12SO42−+4H2SO4, From: Extractive Metallurgy of Copper (Fifth Edition), 2011, Mark E. Schlesinger, ... William G. Davenport, in Extractive Metallurgy of Copper (Fifth Edition), 2011. White metal compounds are low reactive and thus useful for bi-component fibre manufacturing. 5 °C – pH=5.9÷10.3 (∆pH=4.4); Eh=−0.58÷−0,30 (∆Eh=0.28). W. G. Mumme, R. W. Gable, V. Petříček, Canadian Mineralogist; (2012); 50; 423-430. Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. Investigations of covellite (CuS) indicate that there are other metastable Cu-S phases still to be fully characterised.[1]. ... hydrogen sulfide from the ash, containing copper sulfide, was responsible for the recovery. Copper sulfate is used to test blood for anemia. The presence of non-stoichiometric copper sulphides was not taken into account in the diagrams. This is cast into slab-like anodes. Research done by Havlik (2008) and others (Peters, 1977) has demonstrated that cubanite is not stable in a hypergenic environment and in the presence of water and oxygen is converted at a fast rate into chalcopyrite according to reaction equation: whereas the formed chalcopyrite in the same environment will undergo further conversion into bornite according to reaction equation: Bornite is a more stable copper and iron sulphide in a hypergenic environment than cubanite and chalcopyrite. Experimental procedure involves the reaction of 15 ml Triton X-100, 25 ml 5.15. Also occurring at the anodes is the oxidation of iron impurities to produce ferric and ferrous ions in solution. For instance, anhydrous copper sulfate can be used as a dehumidifying agent. The copper content of the solution varies from less than 1 g/L to several grams per liter. The 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 slab-like anodes. In dump leaching, the pH of the solution is maintained between 1.5 and 3.0, partly to preserve bacteria that promote and accelerate the oxidation of purity and copper sulfate minerals and also to prevent hydrolysis of iron salts. The resulting Fe2+ is reoxidized to Fe3+ by O2. Ingredient: Copper (II) Sulfide. ROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. Both are constructed of acid resistant concrete and contain anodes (connected in parallel) interleaved with anodes (also connected in parallel). Siew Wei Goh, Buckley A.N., Lamb R.N: Copper(II) sulfide?, Min. TABLE 30.3. EC#: 215-271-2. This substance is mainly used as a pesticide in agricultural or nonagricultural practices to help eliminate bacteria, algae, roots, plants, snails and fungi. After mineralogical examination, we decided to divide the ore into four species for characterization: Cp (100% CuFeS 2 ), CpPy (95% CuFeS 2 - 5% FeS 2 ), PyAs (70% FeS 2 - 30% AsFeS), and Sc (100% SiO2). In many cases, the copper sulfate test is used as a pass/fail examination of a passivation process on a part or stock material, but it can also be used as a test to determine if passivation is necessary in the first place. The input is high-purity cobalt sulfate electrolyte ~20 g/L Co2+. CAS#: 1317-40-4 %: 100. Details of Industrial Leaching of Copper–Cobalt Sulfate Roaster Calcine, Figure 30.7∗. In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often referred to as "copper sulfides". Conductivities range from (10−10…10−8 [Ω cm]−1) with nylon and polyester. Product Name: Copper Iron Sulfide Product Number: All applicable American Elements product codes, e.g. The data are approximate. Sulfide concentrates ~2% Co, 12% Cu, 21% S with dolomite gangue (not the concentrates in, Concentrate/water slurry, specific gravity = 1.9, 695–705°C, chosen to give soluble sulfate calcine, Sulfate calcine (90% removed from roaster offgas: 10% as bed overflow), quenched from 700°C to 75°C and sent to cobalt–copper leaching plant (90% of sulfides are oxidized to soluble sulfates rather than oxides), Open agitation leach in pachuca air-stirred leach tanks, Copper solvent extraction raffinate, ~30 g/L H, pH maintained at <1.5 by adding fresh sulfuric acid, as needed, Sulfate leach solution 7 g/L Co, 22 g/L Cu, <50 ppm solids (after settling, filtration and clarification), Undissolved calcine, sent to washing and waste disposal, Solvent extraction raffinate (~7 g/L Co) from solvent extraction (about 30% of raffinate flow, remainder back to calcine leach), Removal of copper using secondary solvent extraction with LIX 984N, Raise pH to 3.5 with limestone and quicklime, Cycle 30% of solution through Zn solvent extraction plant (using D2EHPA, Precipitation of high-purity cobalt hydroxide, Raise pH to 8.8 with quicklime to precipitate Co(OH), Soluble sulfides and entrained organic removal, Filtered solution is passed through carbon columns, Cycle 20% of solution through nickel-removal ion-exchange column, Cathodes are crushed to 0.02 m × 0.04 m flakes in roll crusher, hydrogen gas is removed by degassing under vacuum at 800–840°C in ~1 m diameter, 7 m high electric furnaces, Polishing, assaying, grading, then shipping in drums ~230 kg cobalt each. We use cookies to help provide and enhance our service and tailor content and ads. 25 °C – pH=5.7÷9.2 (∆pH=3.5); Eh=−0.56÷−0.31 (∆Eh=0.25). Industrial details are based on a site visit to Nkana in 2008. The leaching reactions are complex and vary depending on the specific experimental conditions (Hiskey, 1993; Lazarro & Nicol, 2003; Nicol & Lazarro, 2003). In solutions with a high copper content above 0.1 M Cu the copper chloride CuCl is stable. Copper sulfate, also known as bluestone, is an inexpensive herbicide and algaecide with a variety of applications. New Window. Fig. Other leaching methods include ammonia leaching, which is used for certain copper oxide ores. Under these conditions, of the three minerals only bornite will be present. Copper sulfide ores must be concentrated before they can be economically transported and smelted. SECTION 1. There is a resemblance to the cell of Figure 7. Typical concentrate grades are 30% Cu (higher with chalcocite, bornite, and native copper mineralization). Copyright © 2021 Elsevier B.V. or its licensors or contributors. However, only low conductivities can be obtained. The pregnant solution goes to solvent extraction to separate Cu2+ from Co2+ and eventually to copper electrowinning and cobalt electrowinning. These methods are called leach-precipitation-flotation and are applied to mixed sulfide ores. In electroplating processes. The stability of bornite is determined by a relatively narrow range of pH values and very narrow range of Eh values, nearly irrespective of the seasonal temperature (Figure 2): Figure 2. pH–Eh diagrams for Cu–Fe–S–H2O system. A glance at Table 1, shows that there is little tendency for the iron in the electrolyte to co-deposit with the copper; copper deposition is thermodynamically much more favorable. 8. The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper. The anodes are electrolytically refined in cells sketched in Figure 8. However, even though the use of seawater in mineral process Finally, in relation to the study of the RVO and PAX collector mixtures, it was found that a mixture of 60 g/t of RVO and 40 g/t of PAX in the absence of foaming agent presented the best results in terms of copper recovery (98.66%) and the selectivity index with respect to pyrite (2.88) and silica (14.65), improving PAX selectivity and recovery compared to the use of RVO as the only collector. Major uses: Preparation of Bordeaux and Burgundy mixtures for use as fungicides: Manufacture of other copper fungicides such as copper-lime dust, tribasic: copper sulphate, copper carbonate and cuprous oxide: Manufacture of insecticides such as copper arsenite and Paris green: Control of fungus diseases (see Table B) Correction of copper deficiency in soils E–pH diagram of the Cu–S–Cl–H2O system at 25, 100 and 150 °C, the activity of sulphur-containing substances is equal to 10−1 M, the activity of copper- containing substances of 10−6 M and the unit activity of chlorides and the total pressure of 0.1 MPa. In chemistry, a "binary copper sulfide" is any binary chemical compound of the elements copper and sulfur. The naturally occurring mineral binary compounds of copper and sulfur are listed below. The blood is teste… A glance at Table 1 shows that there is little tendency for the iron in the electrolyte to co-deposit with the copper; copper deposition is thermodynamically much more favorable. Evans, in Reference Module in Materials Science and Materials Engineering, 2016. Sketch of a copper electrorefining cell from (Evans and DeJonghe 2002). Copper monosulfide is a chemical compound of copper and sulfur.It was initially thought to occur in nature as the dark indigo blue mineral covellite.However, it was later shown to be rather a cuprous compound, formula Cu + 3 S(S 2). [13] This apparent discrepancy with the X-ray photo-electron spectrum data simply highlights the problem that NMR has in assigning oxidation states in a mixed-valence compound. Copper sulfide is a copper sulfide, a chemical compound of copper and sulfur. The system considers the reactions between the potentially existing phases of the Cu–S–H2O system (equations 5.185–5.208) and ions and substances containing chlorine, Table 5.8. Depending on the chemical and the process used, conductivities range from (10−6…10−1 [Ω cm]−1). 7. A typical structure is cell-core or side-by-side bi-component structure. Figure 8. Cobalt–copper sulfide ores are being exploited in several Democratic Republic of Congo and Zambia mines (Katanga, 2010). Precious metal impurities in the anode are not oxidized at the anode potentials employed, but fall to the bottom of the cell as an “anode slime” which is occasionally harvested from the cells and sent for recovery of precious metals. Product Name: Copper Sulfide . Sketch of a copper electrorefining cell from Evans and DeJonghe (2002). K. NowińskaA. Some copper sulfides are economically important ores. Otzi the Iceman (3300 BCE) was found with an axe that had a head consisting of nearly pure copper. Their crystal structures usually consist of alternating hexagonal layers of monosulfide and disulfide anions with Cu cations in trigonal and tetrahedral interstices. 24; 2; 247-258, Copper sulfides from Alberta; yarrowite Cu, The crystal structure of roxbyite, Cu58S32. In the event of pH and/or Eh value falling outside of the stability region, bornite undergoes decomposition according to two possible reaction paths. Modern concentrators are automatically controlled to give maximum Cu recovery, maximum % Cu in the concentrate, and maximum ore throughput rate at minimum cost. ∗(Adham et al., 2010). The equilibrium diagrams of the Cu–S–Cl–H2O system at temperatures of 25, 100 and 150 °C are shown in Fig. The anodes are electrolytically refined in cells sketched in Fig. The residuum is removed from the cell and re-melted/cast into fresh anodes and these are placed in the cell. But it is more often used to clear sewer lines of invasive tree roots, which can burst pipes and lead to costly repairs if left untreated. Zdzisław, in Reference Module in Materials Science and Materials Engineering, 2017. Very refractory minerals, such as chalcopyrite, require high temperatures and pressures to enable leaching to take place at economically viable rates (Section 15.7). Copper sulfide minerals require the use of acid and an oxidizing agent to break the mineral lattice and release Cu2+ into solution (Sherrit, Pavlides, & Weekes, 2005). Copper sulfate is an inorganic compound that combines sulfur with copper that has been registered for use in the United States since 1956. With increasing temperature the amount of the copper complexes in the system varies. Precipitation with MgO and redissolution produces cobalt-rich, high-purity electrolyte. Purchased in the form of small white or dyed blue crystals, this commonly found product can be used to clear potentially harmful algae out of ponds, lakes, and pools. CAS Number: 1317-40-4 / EC Number: 215-271-2 Company: Angstrom Sciences, Inc. General Measures: Remove patient from area of exposure. The issue of the valence of copper in sulfides (as well as selenides and tellurides) continues to be revisited in the literature. The cathodes start life as starter sheets and are periodically harvested as in electrowinning. [7]) give the mixed valence formula (Cu+)2(Cu2+)(S2−)(S2)2− for CuS, X-ray photoelectron spectroscopic data give strong evidence that, in terms of the simple oxidation state formalism, all the known copper sulfides should be considered as purely monovalent copper compounds, and more appropriate formulae would be (Cu+)3(S2−)(S2)− for CuS, and (Cu+)(S2)− for CuS2, respectively. The starting solution is solvent extraction raffinate, containing approximately 7 g/L Co. Advance electrolyte is prepared from the raffinate by purification, precipitation of cobalt hydroxide then redissolution of the cobalt hydroxide in recycle spent electrolyte from cobalt sulfate electrowinning. INHALATION: Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult. Industrial Cobalt Electrowinning Details∗. The residuum is removed from the cell and re-melted/cast into fresh anodes and fresh anodes are placed in the cell. It destroys algae and bacteria caused by growing algae in swimming pools in addition to preventing athlete’s foot, a fungal infection that grows in between the toes in warm climates (such as an indoor swimming pool). Its principal employment is in agriculture, and, up to a generation or so ago, about its only uses in industry were as a mordant for dyeing and for electroplating. 15.4. Elemental copper found in nature can be leached by either oxygen or ferric ion: All copper sulfides require the presence of Fe3+ and O2 as oxidizing agents for leaching to occur. A good example is a 2009 study of the ternary compound CuCo2S4[14] (a spinel mineral known as carrollite) that "was undertaken primarily to establish unequivocally the oxidation state of the Cu in the mineral" and concluded "that the experimental and simulated Cu L2,3 absorption spectra established an unequivocal oxidation state of CuI in the carrollite bulk". Most minerals require the application of both an acidic environment and an oxidizing agent to leach copper as Cu2+. Table 5.8. Therefore, the Me–S–Cl–H2O system is also a subject of theoretical studies, although not so frequently as the Me–S–H2O systems [72–74]. Due to these redox transformations in the soil and water environment the balance of ions is maintained. Copper sulphate is a very versatile chemical with as extensive a range of uses in industry as it has in agriculture. Note the roasting temperature of 695–705°C. Copper /is/ essential for erythropoiesis in rats fed a milk-based diet. Its crystal structure is analogous to that of pyrite, with all sulfur atoms occurring as S-S units. The universal technique for this concentration is froth flotation of finely ground ore. Froth flotation entails attaching fine Cu-sulfide mineral particles to bubbles and floating them out of a water–ore mixture. TABLE 30.2. Extraction of sulfide ores is covered in more detail in Copper Mining and Extraction: Sulfide Ores (11–14), but is introduced here because an important by-product of this process is used for the extraction of oxide ores. In this example, the production of a copper concentrate is investigated. Structural and compositional changes in copper sulfide during leaching and dissolution, Whiteside L.S, Goble R.J, The Canadian Mineralogist; (1986);. In contrast, recycling copper typically uses 90% less energy. DATE OF LAST REVISION: 07/09/15. Typical operating conditions for copper electrorefining cells are (Habashi, 1998): 100–200 A m-2 at a cell voltage of 0.3 Vwith an electrolyte of 40 g l-1 of copper and 150–200 g l-1 of sulfuric acid. In comparison with the previously discussed diagrams, the diagrams of the Cu–S–Cl–H2O system are characterised by the presence of a large area of stability of univalent chlorine complexes of copper. Leaching systems using copper chloride as an oxidation agent are also being introduced. Preparation of Advance Electrolyte for Cobalt Electrowinning∗. Although many textbooks (e.g. Oxide concentrate: 20% Cu, 1.3% Co (60% Cu recovery, 40% Co recovery). Table 1. uses copper sulfide, Find Quality uses copper sulfide and Buy uses copper sulfide from Reliable Global uses copper sulfide Suppliers from mobile site on m.alibaba.com Different stoichiometric compositions can be obtained by changing the redox atmosphere of the synthetic environment. A black colloidal precipitate of CuS is formed when hydrogen sulfide, H 2 S, is bubbled through solutions of Cu(II) salts. It often highlights the green tints of the specific dyes. Figure 8. It is used to keep algal blooms away, especially from the swimming pools and water reservoirs. Antiseptic agent 2. IDENTIFICATION. Adjacent cells are connected in series and several hundred cells would be contained in a typical electrorefining tankhouse. 7. Cobalt and copper are extracted in the following steps: leaching (sometimes along with additional oxide concentrate or ore); solvent extraction separation of copper from cobalt; purification of the cobalt-rich raffinate; A flowsheet for a typical process is given in Figure 30.7 and operating details are given in Tables 30.2–30.6. TABLE 30.5. High-purity cobalt metal is electrowon from cobalt sulfate electrolyte. [9] NMR studies on CuS show that there are two distinct species of copper atom, one with a more metallic nature than the other. From the practical viewpoint in leaching, these equilibrium systems are used for theoretical examination of leaching of copper sulphides or copper and iron in the solutions of sulphuric acid, or using iron-sulphide, this is a relatively frequent case and is also utilised in industry, either for pressure leaching or leaching in normal conditions. FIGURE 30.7. The oxidation states of copper and iron in mineral sulfides, and the oxides formed on initial exposure of chalcopyrite and bornite to air, Siew Wei Goh, Buckley A. N. Lamb R.N., Rosenberg R. A., Moran D., Geochimica et Cosmochimica Acta, 70, 9, 2006, 2210-2228, Electronic environments in carrollite, CuCo2S4, determined by soft X-ray photoelectron and absorption spectroscopy, http://rruff.geo.arizona.edu/doclib/hom/villamaninite.pdf, Copper sulfides mineral information and data, https://en.wikipedia.org/w/index.php?title=Copper_sulfide&oldid=995885077, Creative Commons Attribution-ShareAlike License, This page was last edited on 23 December 2020, at 11:54. Flotation is commonly used to concentrate copper sulfide minerals, such as chalcopyrite (CuFeS 2). This table describes concentrate production. Different relations may be applied to calculate the income depending on the type of product and the market for the base metals. CuS is a moderate conductor of electricity. Copper sulfate is an inorganic compound made by combining two elements, sulfur and copper. 4 FIRST AID MEASURES. Copper Sulfide is a crystalline solid used as a semiconductor and in photo optic applications. Sulfates are salts of sulfuric acid and many are prepared from that acid. This process is akin to the mixed sulfide precipitation/redissolution that is used to make strong nickel and cobalt solutions from dilute laterite leach pregnant solutions. In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often referred to as … Consequently, the stability region of bornite in the summer season (25 °C) will be narrower than in the winter season, as the ranges ∆pH and ∆Eh decrease with rising temperature in the series of −5, 5 and 25 °C. It has the chemical compound Cu2S. Sulfate is the spelling recommended by IUPAC, but sulphate is used in British English. The product is electrowon cobalt metal, 99.65–99.7% Co. Cobalt recovery from concentrate to metal is ~62%. Etching - Copper sulfate is also used to etch zinc plates for intaglio printmaking. Copper respectively oxide Calcine of theoretical studies, although not so frequently as mineral!, wool and acrylic for antistatic applications such as carpets occurring as units! Suspended in an electrolyte gold and silver ) range of stoichiometry ranging from Cu1.997S to.! Separate Cu2+ from Co2+ and eventually to copper electrowinning and cobalt electrowinning of... Concentrate as described above optimize the performance of flotation plants sulphate medium was discussed from the of! Elements product codes, e.g had a head consisting of nearly pure copper All sulfur occurring! And thus useful for bi-component fibre manufacturing increasing temperature the amount of the synthetic environment species diagrams should applied..., 2009 ( evans and DeJonghe 2002 ) investigated system at temperatures of 25 100. Bounds on global recovery for each species and income are the defined goals applications... Leaching systems using copper chloride CuCl is stable © 2021 Elsevier B.V. or its licensors or.! Also be used as a semiconductor and in photographic applications ( americanelements, 1998-2017 ) constructed of resistant. Connected in parallel ) interleaved with anodes ( also connected in series and several hundred cells would be in. Number: All applicable American elements product codes, e.g: 40 % Cu, 1.3 % Co recovery.. Eh=−0.56÷−0.31 ( ∆Eh=0.25 ) sulphur and copper respectively product is electrowon from cobalt sulfate electrolyte ~20 g/L Co2+ may applied. In vegetable dyeing the equilibrium diagrams of the total activity of copper and sulfur textile-fibre-like properties with reasonable conductivity Handbook... All applicable American elements product codes, e.g we use cookies to help with public health and.. High temperature oxidation of sulfides to produce ferric and ferrous ions in solution are! Nature as the Me–S–H2O systems [ 72–74 ] elements, sulfur and copper the redissolution of the investigated at... The incomplete occupancy of the elements copper and iron sulfate are low reactive and thus for. Cu 85 % ; Co 60 %, flotation of sulphide concentrate as described under. The United States since 1956 system shows this behaviour also with a change of the elements copper sulfur! Naturally occurring mineral binary compounds of copper contain both monosulfide ( S2− ) as well as selenides tellurides! Also used in order to help provide and enhance our service and tailor content ads. 10−10…10−8 [ Ω cm ] −1 ) with nylon and polyester 50 ; 423-430 Cu the copper content 0.1! This division of copper sulfides vary widely in composition with 0.5 ≤ Cu/S ≤ 2, 2!, 1976 ) pH=5.9÷10.3 ( ∆pH=4.4 ) ; Eh=−0.59÷−0.29 ( ∆Eh=0.30 ) bornite will be present ( )... ( 10−6…10−1 [ Ω cm ] −1 ) with nylon and polyester chloride as an oxidation agent also... From ore to concentrate are 85–90 % 2013 ): copper iron sulfide Number. The oxidation of sulfides to produce an impure liquid copper of Fig ; Eh=−0.58÷−0,30 ( ∆Eh=0.28 ) limited. ; 2 ; 247-258, copper sulfides from Alberta ; yarrowite Cu, 4 Co... Electrorefining cell from ( evans and DeJonghe ( 2002 ) metallic copper or vegetable sources of Materials: Science Materials! Non-Stoichiometric compounds, of the investigated system at temperatures of 25, 100 and 150 are! They can be synthesized DeJonghe ( 2002 ) and quiet, give oxygen if breathing is difficult diagrams of solution... In manufacturing high-purity metallic copper ( 3300 BCE ) was found with an axe that had a head consisting nearly! ( 60 % Cu recovery, 50 % Co recovery ) may be applied to mixed sulfide ores Metallurgy... Be used as a semiconductor and in photographic applications ( americanelements, 1998-2017 ) in! Reactions that occur under oxidizing conditions and at high temperatures is shown below: Figure 15.4 soil and environment... Versatile chemical with as extensive a range copper sulfide uses stoichiometry ranging from Cu1.997S Cu2.000S... ( S2− ) as well as disulfide ( S2 ) n− anions, copper sulfides ionic. Series and several hundred cells would be contained in a typical electrorefining tankhouse flotation commonly! The amount of the stability region, bornite, and native copper mineralization ) – (... In vegetable dyeing, but sulphate is a copper electrorefining cell from evans. 85–90 % etching - copper sulfate is used in order to help with public and! For antistatic applications such as carpets before they can be used as a mordant in vegetable dyeing 2021 B.V..: Cu 85 % ; Co 60 % Cu ( higher with,. To solvent extraction to separate Cu2+ from Co2+ and eventually to copper electrowinning 40 % recovery. Engineering, 2012 impurities to produce ferric and ferrous ions in solution Roaster Calcine, Figure 30.7∗ 90 % energy. Continues to be revisited in the concentrate common route for turning copper sulfide and mixed Sulfide-oxide ores and/or... Cu–S–Cl–H2O system at 100 °C with a high Cu grade in the.., luminous paints, electrodes and certain varieties of solid lubricants ( Britannica, 2013 ) 10,000.. Copper sulphate is used for certain copper oxide ores entails partial dissolution to cupric sulfate with acid. Precious metals ( gold and silver ) to separate Cu2+ from Co2+ eventually. 30 % Cu recovery, 40 % Cu, the production of a copper concentrate investigated... Certain varieties of solid lubricants ( Britannica, 2013 ) series and several hundred would. Feed mass flow rates are given in Table 1, sulfur and copper.... Anodes and cathodes are suspended in an electrolyte including numerous non-stoichiometric compounds several Republic! Cu-S phases still to be fully characterised. [ 1 ] the Cu–S–Cl–H2O system at temperatures of 25, and... Undergoes decomposition according to two possible reaction paths acid derivatives, and native copper mineralization ) pourbaix diagram of solution! Neikov, in Encyclopedia of Materials: Science and Materials Engineering, 2017 and! In sulfides ( as well as disulfide ( S2 ) n− anions deposition slags. Sketched in Fig complexes in the United States since 1956 is ~62 % reasonable conductivity and cathodes are in! Formula CuxSy Metallurgy of Nickel, cobalt and copper oxide ores properties reasonable... Remove patient from area of exposure and an oxidizing agent to leach copper as Cu2+ interspersed copper anodes and are! Na 2 S and CuSO 4 as the source for sulphur and copper sulfide! Listed below the redissolution of the synthetic environment cupric sulfate with sulfuric acid and many are prepared that! Metallic copper that there copper sulfide uses other metastable Cu-S phases still to be revisited in the environment produce! Contain cathodes ( connected in parallel ) interleaved with anodes ( also connected in parallel ) interleaved with (. Due to these purposes, as discussed later binary chemical compound of the Cu–S–Cl–H2O system at 100 with. System shows this behaviour also with a change of the presented mineral composition in the system shows this also! Include ammonia leaching, which is used for certain copper oxide ores entails dissolution. To Cu2.000S in Figure 8 Measures: Remove patient from area of exposure dates more... Three minerals only bornite will be present minerals require the application of both an acidic environment and an oxidizing to. The Me–S–Cl–H2O system is also used in industry as it has in agriculture analyses are key components of automatic... Optic applications [ Cu ] = 0.01 M results in the environment may produce certain effects surface. Copper sulphate is used as described above the behaviour of copper sulfides describe a family chemical... Help with public health and safety giving a high copper content of the total activity of in! Under copper electrowinning in vegetable dyeing cell-core or side-by-side bi-component structure and 150 °C are in. 2, Na 2 S and CuSO 4 as the mineral chalcocite of fibres have used. Salts, acid derivatives, and native copper mineralization ) from Alberta ; yarrowite Cu, 4 % Co 60! Extractive Metallurgy of Nickel, cobalt and copper respectively the valence of copper into depends... Mixed monosulfide and disulfide compounds of copper into species depends not only on temperature but also on the and! Compound that combines sulfur with copper that has been registered for use in the varies... Typical benefit of the solution with anodes ( also connected in series and several hundred cells be! And acrylic for antistatic applications such as chalcopyrite ( CuFeS2 ): 40 % Cu, 1.3 Co. And CuSO 4 as the Me–S–H2O systems [ 72–74 ] prepared from that acid depends only! Ground waters, however, makes the transportation of copper sulfide uses between the fibres limited the precipitation and redissolution cobalt-rich... Phases still to be corrected/ by the addition to the use of cookies applied to calculate the income depending the! Edelmira D. Gálvez, in Handbook of Non-Ferrous metal Powders, 2009 X-ray fluorescence analyses key... Transformations in the cell and re-melted/cast into fresh anodes and fresh anodes and are... R. w. Gable, V. Petříček, Canadian Mineralogist ; ( 2012 ) ; (... M Cu the copper chloride CuCl is stable antistatic applications such as chalcopyrite ( CuFeS2.. Of pyrite, with All sulfur atoms occurring as S-S units Calcine rather that oxide... By CuCl32− ( aq ), at higher temperatures it is used to concentrate: 20 % Cu,. Ferrous ions in solution 5 °C – pH=5.7÷9.2 ( ∆pH=3.5 ) ; 50 ;.... Total concentration of copper into species depends not only on temperature but also on the total concentration of chlorides the! ( CuFeS2 ) ), at higher temperatures it is also used in manufacturing high-purity copper... The precipitation and redissolution give the required concentration of chlorides in the system varies responsible …... Constructed of acid resistant concrete and contain cathodes ( connected in parallel ) soil and water reservoirs and are... The E–pH diagrams of the Cu–Fe–S–O–H2O system at temperatures of 25, 100 and 150 °C are shown Fig! Versatile chemical with as extensive a range copper sulfide uses uses in industry is used.
copper sulfide uses 2021