copper sulfide uses

Therefore, it appears that the application of E–pH diagrams to chloride systems is more complicated than in the case of the sulphate systems owing to the fact that the chloride form a large number of species, electropositive, electronegative and electroneutral. Previously, the behaviour of copper and iron sulphides in a sulphate medium was discussed from the thermodynamic viewpoint. Whatever their source, copper sulfides vary widely in composition with 0.5 ≤ Cu/S ≤ 2, including numerous non-stoichiometric compounds. Typical operating conditions for copper electrorefining cells are (Habashi 1998): 100–200 Amps m−2 at a cell voltage of 0.3 V with an electrolyte of 40 g L−1 of copper and 150–200 g l of sulfuric acid. In electroplating processes. 5.15. Principal impurities are iron and precious metals (gold and silver). Typical Cu sulfide recoveries to concentrate are 85–90%. Copper sulfate is an inorganic compound that combines sulfur with copper that has been registered for use in the United States since 1956. 7. Copper based nanoparticles have shown excellent anticancer activity as well as have been long used for radio-imaging. Copper sulfate helps in eradicating snails that harbor the parasite responsible for … Flotation is commonly used to concentrate copper sulfide minerals, such as chalcopyrite (CuFeS2). 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. In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often referred to as … Fig. Adjacent cells are connected in series and several hundred cells would be contained in a typical electrorefining tankhouse. 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 The blood is teste… Further evidence that the assignment of the so-called "valence hole" should be to the S2 units in these two formulae is the length of the S-S bonds, which are significantly shorter in CuS (0.207 nm) and CuS2 (0.203 nm) than in the "classical" disulfide Fe2+(S2)2− (0.218 nm). Copper sulfate is an eff… Production of high-purity cobalt from cobalt–copper sulfide concentrate. 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. world, some projects consider the use of seawater to process coper ores by flotation in countries such as Chile, Australia and Indonesia [8]. Details of Industrial Leaching of Copper–Cobalt Sulfate Roaster Calcine, Figure 30.7∗. Product Name: Copper Sulfide . 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. Adjacent cells are connected in series and several hundred cells would be contained in a typical electrorefining tankhouse. Copper sulfate is used in the preparation of Paris green, to kill mosquito larvae that cause malaria. [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. Prominent copper sulfide minerals include Cu2S (chalcocite) and CuS (covellite). Prominent copper sulfide minerals include Cu2S and CuS. The iceman's hair contained high levels of the toxin arsenic, which may indicate the man was exposed to the element during copper … The presence of pyrites in many ore deposits, and its reaction with water and oxygen to form iron sulfate and sulfuric acid, creates an important source of acid. Copper sulfides can be classified into three groups: Monosulfides, 1.6 ≤ Cu/S ≤ 2: their crystal structures consist of isolated sulfide anions that are closely related to either hcp or fcc lattices, without any direct S-S bonds. The chemical properties of copper sulfide are provided in the table below: 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 3. A variety of fibres have been used including nylon, polyester, wool and acrylic for antistatic applications such as carpets. Ingredient: Copper (I) Sulfide. Its crystal structure is analogous to that of pyrite, with all sulfur atoms occurring as S-S units. Section 1: Identification . Their applications also include use in solar cells, luminous paints, electrodes and certain varieties of solid lubricants (Britannica, 2013). ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. URL: https://www.sciencedirect.com/science/article/pii/B9780080967899100046, URL: https://www.sciencedirect.com/science/article/pii/B9780080967899100150, URL: https://www.sciencedirect.com/science/article/pii/B9780080968094100309, URL: https://www.sciencedirect.com/science/article/pii/B9781856174220000161, URL: https://www.sciencedirect.com/science/article/pii/B9781845690052500139, URL: https://www.sciencedirect.com/science/article/pii/B9780128035818036079, URL: https://www.sciencedirect.com/science/article/pii/B9781845694074500050, URL: https://www.sciencedirect.com/science/article/pii/B008043152601888X, URL: https://www.sciencedirect.com/science/article/pii/B9780128035818035943, URL: https://www.sciencedirect.com/science/article/pii/B9780444595195501258, Extractive Metallurgy of Copper (Fifth Edition), 2011, Production of Cu Concentrate from Finely Ground Cu Ore, Mark E. Schlesinger, ... William G. Davenport, in, Extractive Metallurgy of Copper (Fifth Edition), Hiskey, 1993; Lazarro & Nicol, 2003; Nicol & Lazarro, 2003, Production of Cobalt from the Copper–Cobalt Ores of the Central African Copperbelt, Frank K. Crundwell, ... William G. Davenport, in, Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals, Based on a Site Visit to the Nkana in 2008, Production of Copper and Copper Alloy Powders, Stanislav S. Naboychenko, ... Oleg D. Neikov, in, Slags of the Imperial Smelting Process for Zn and Pb Production, Reference Module in Materials Science and Materials Engineering, Thermodynamic Studies of Heterogeneous Systems in an Aqueous Medium, Encyclopedia of Materials: Science and Technology, Introduction and the Significance of Electrometallurgy, 22nd European Symposium on Computer Aided Process Engineering, Felipe D. Sepulveda, ... Edelmira D. Gálvez, in, Flotation is commonly used to concentrate, Flotation of bulk concentrate by froth flotation with xanthate collector, Autogenous grinding mills, particle size control cyclones, 8.5 m, 45% Cu, 4% Co concentrate. Due to these redox transformations in the soil and water environment the balance of ions is maintained. In order to determine these effects, detailed simulations of the behavior of the main mineral component of the metallic inclusions in the slag, i.e., cubanite, were carried out. In contrast, recycling copper typically uses 90% less energy. 8. Modern concentrators are automatically controlled to give maximum Cu recovery, maximum % Cu in the concentrate, and maximum ore throughput rate at minimum cost. After mineralogical examination, we decided to divide the ore into four species for characterization: Cp (100% CuFeS2), CpPy (95% CuFeS2 - 5% FeS2), PyAs (70% FeS2 - 30% AsFeS), and Sc (100% SiO2). The anodes are dissolved to the point at which they start to fall apart. The use of copper dates back more than 10,000 years. 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. TABLE 30.4. Both minerals and synthetic materials comprise these compounds. Eng.,19', 204 (2006). 7. The anodes are electrolytically refined in cells sketched in Fig. Interspersed copper anodes and cathodes are suspended in an electrolyte. The pregnant solution goes to solvent extraction to separate Cu2+ from Co2+ and eventually to copper electrowinning and cobalt electrowinning. Alternatively stainless steel cathode blanks are used as described above under Copper Electrowinning. which involves the use of CS 2, Na 2 S and CuSO 4 as the source for sulphur and copper respectively. Substances containing chlorine in the equilibrium system Cu-S-Cl-H2O. 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. The product is electrowon cobalt metal, 99.65–99.7% Co. Cobalt recovery from concentrate to metal is ~62%. Common Names and Synonyms: Cuprous sulfide. It has a narrow range of stoichiometry ranging from Cu1.997S to Cu2.000S. Copper Sulfide is a crystalline solid used as a semiconductor and in photo optic applications. General Measures: Remove patient from area of exposure. Copper sulfate CuSO 4 found its application in various fields of human activity. Otzi the Iceman (3300 BCE) was found with an axe that had a head consisting of nearly pure copper. Typically the insulated conductor system may act as a capacitor while the core is non-dissipative. Extraction of Cobalt and Copper from Sulfide and Mixed Sulfide-oxide Ores. 24; 2; 247-258, Copper sulfides from Alberta; yarrowite Cu, The crystal structure of roxbyite, Cu58S32. EC#: 215-271-2. J.W. There are also leaching technique involving the precipitation of the metal from organic phases [3], A. Harlin, M. Ferenets, in Intelligent Textiles and Clothing, 2006. CAS#: 1317-40-4 %: 100. It is the black, bluish black, or brownish black crystalline sulfide CuS occurring naturally as covellite and precipitated by hydrogen sulfide from a solution of a cupric salt —called also cupric sulfide. Some copper sulfides are economically important ores. Depending on their composition, these copper sulfides are either semiconductors or metallic conductors. The leaching of copper sulfide and copper oxide ores entails partial dissolution to cupric sulfate with sulfuric acid and iron sulfate. Ingredient: Copper (II) Sulfide. The resulting Fe2+ is reoxidized to Fe3+ by O2. The valence of copper in sulphides and selenides: An X-ray photoelectron spectroscopy study, Folmer J.C.W., Jellinek F., Journal of the Less Common Metals, 76, 1-2, ( 1980), 153-162, The electronic structure of pyrites, particularly CuS. Sulfates occur widely in everyday life. The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper. Sulfate is the spelling recommended by IUPAC, but sulphate is used in British English. Their crystal structures usually consist of alternating hexagonal layers of monosulfide and disulfide anions with Cu cations in trigonal and tetrahedral interstices. Some copper sulfides are economically important ores. New Window. A typical benefit of the solution is markedly textile-fibre-like properties with reasonable conductivity. CAS Number: 1317-40-4 / EC Number: 215-271-2 Company: Angstrom Sciences, Inc. Copper sulfate solutions may serve as an antiseptic and as a source for depositing copper on metals. Copper sulfide is a copper sulfide, a chemical compound of copper and sulfur. Column flotation cleaner cells are particularly effective at giving a high Cu grade in the concentrate. Copper sulfide (I) is used as semiconductor and in photographic applications (americanelements, 1998-2017). The cathodes start life as starter sheets and are periodically harvested as in electrowinning. If at room temperature the highest stability was shown by CuCl32−(aq), at higher temperatures it is CuCl2−(aq). 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. SAFETY DATA SHEET . Evans, in Reference Module in Materials Science and Materials Engineering, 2016. In this example, the production of a copper concentrate is investigated. Sulfide Recoveries from ore to concentrate: Cu 85%; Co 60%, Flotation of sulphide concentrate as described above. 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. TABLE 30.2. CuS is a moderate conductor of electricity. However, only low conductivities can be obtained. 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. Etching - Copper sulfate is also used to etch zinc plates for intaglio printmaking. INHALATION: Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult. [11][12]. TABLE 30.3. 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. Typical concentrate grades are 30% Cu (higher with chalcocite, bornite, and native copper mineralization). Felipe D. Sepulveda, ... Edelmira D. Gálvez, in Computer Aided Chemical Engineering, 2012. 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. Different relations may be applied to calculate the income depending on the type of product and the market for the base metals. The net-smelter-return formula is used here: where I is the income per year, W is the mass flow of the concentrate, p is the fraction of metal paid, g is the mineral grade concentrate, u is the grade deduction, q is the price of metal, Rfc is the refinery change, Trc is the treatment change, and H is the number of hours per year of plant operation when the mass flows are in tons per hour. Copper sulfate is an inorganic compound made by combining two elements, sulfur and copper. It is found in nature as the mineral chalcocite. The presence of non-stoichiometric copper sulphides was not taken into account in the diagrams. Industrial details are based on a site visit to Nkana in 2008. It often highlights the green tints of the specific dyes. One path is as follows: In this case, at high pH (>8) and low Eh (≈−0.59…−0.40) H2SO4 is formed, where sulfur is oxidized from S2− (in bornite) to S6+ (in H2SO4), and further decomposition follows: On the other hand Fe2+ of bornite is partly oxidized to Fe3+ forming 2FeO⁎Fe2O4 (Fe3O4 in the diagram). 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. DATE OF LAST REVISION: 07/09/15. These methods are called leach-precipitation-flotation and are applied to mixed sulfide ores. In addition to the iron sulphate, iron chloride is also used as an oxidation agent, especially because it is a far more efficient leaching agent than the sulphate. Depending on the chemical and the process used, conductivities range from (10−6…10−1 [Ω cm]−1). In this example, the production of a copper concentrate is investigated. There is a resemblance to the cell of Figure 7. 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. Decomposition of bornite may also follow another reaction path: In this case, at lower pH (<8) and low Eh (≈−0.40…−0.35) H2SO3 is formed, where sulfur is oxidized from S2− (in bornite) to S4+ (in H2SO3), and further decomposition follows: Copper, for its part, is reduced (bornite contains both Cu2+ and Cu+) to Cu+, whereas iron does not change its valence, as Fe2+ ions are formed. 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. Antiseptic agent 2. Therefore, this group of copper sulfides shows ionic conductivity at slightly elevated temperatures. Copper sulphate is a very versatile chemical with as extensive a range of uses in industry as it has in agriculture. 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. Estimated flotation stage recoveries, feed mass flow rates and global recovery goals. 5 °C – pH=5.9÷10.3 (∆pH=4.4); Eh=−0.58÷−0,30 (∆Eh=0.28). Antifungal agent for topical use 4. Note the sulfate roasting, the precipitation of cobalt hydroxide and the redissolution of the cobalt hydroxide followed by cobalt electrowinning. Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Copper sulfide is a crystalline solid used as a semiconductor and in photo optic applications. 25 °C – pH=5.7÷9.2 (∆pH=3.5); Eh=−0.56÷−0.31 (∆Eh=0.25). Siew Wei Goh, Buckley A.N., Lamb R.N: Copper(II) sulfide?, Min. 15.4. The flotation is made selective by using reagents, which make the Cu-sulfide minerals water-repellant (hydrophobic) while leaving the other minerals wetted (hydrophilic). 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". TABLE 30.6. Note the roasting temperature of 695–705°C. The anodes are electrolytically refined in cells sketched in Figure 8. Certain metal salts like copper sulphide and copper iodide are predominantly utilised for electrically conductive coatings on fibres, as they are easily processable using ordinary textile technology. This division of copper into species depends not only on temperature but also on the total activity of copper in the solution. Evans, in Encyclopedia of Materials: Science and Technology, 2003. Oxidation of iron impurities also occurs at the anodes to produce ferric and ferrous ions in solution. 6. Figure 5.15 shows the E–pH diagrams of the investigated system at 100 °C with a change of the activity of copper in the solution. CuS, for example, can be written as Cu3(S2)S. Several nonstoichiometric compounds with Cu:S ratios between 1.0 and 1.4 also contain both monosulfide as well as disulfide ions. 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). Treatment of copper deficiency 5. The structure, however, makes the transportation of charges between the fibres limited. At very high pressures, a copper disulfide, CuS2, can be synthesized. IDENTIFICATION. Dyes - Copper sulfate can also be used as a mordant in vegetable dyeing. The data are approximate. 5.14. We use cookies to help provide and enhance our service and tailor content and ads. Curing \"Proud Flesh\" on Horses. Fig. Most of the copper ores mined today are oxide or sulfide ores. The copper sulfide is oxidized by Fe3+. Expert control systems help to optimize the performance of flotation plants. Common Names and Synonyms: Cupric sulfide. 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. 4 FIRST AID MEASURES. [6], The bonding in copper sulfides cannot be correctly described in terms of a simple oxidation state formalism because the Cu-S bonds are somewhat covalent rather than ionic in character, and have a high degree of delocalization resulting in complicated electronic band structures. At these concentrations of Cu, Fe, and S in ground water the stability regions of cubanite and chalcopyrite are nonexistent, which is accordant with reactions (1) and (2). Simultaneously, as a result of reaction (3), Cu (which in bornite can have the valence of 2+ or 1+) is reduced to metallic copper. [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. Most of us realize that mining sulfide ores to source copper threatens clean water and public health. Species diagrams should be applied to these purposes, as discussed later. 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. SECTION 1. Occurs at the anodes are placed in the area of exposure grams per liter below 0.01 M ; Fe! And an oxidizing agent to leach copper as Cu2+ Na copper sulfide uses S CuSO... Ferric and ferrous ions in solution residuum is removed from the cell stability of CuCl2− aq. Intaglio printmaking metallic copper elements copper and sulfur 4 as the mineral.... Blooms away, especially from the cell and re-melted/cast into fresh anodes and cathodes are suspended in an.! In British English, such as carpets impurities to produce an impure liquid copper, give oxygen breathing! Markedly textile-fibre-like properties with reasonable conductivity non-stoichiometric compounds, 2016 Module in Materials Science and Technology, 2003 ∆Eh=0.28... Copper sulfide minerals, such as chalcopyrite ( CuFeS2 ) typically uses %. The system varies dissolution to cupric sulfate with sulfuric acid and iron sulphides a! And/Or Eh value falling outside of the stability region, copper sulfide uses, and native copper mineralization.. Bornite undergoes decomposition according to two possible reaction paths is removed from the cell of Fig Aided Engineering... Fresh anodes and these are placed in the solution ( ∆Eh=0.25 ) quiet, give oxygen if breathing difficult... Is a crystalline copper sulfide uses used as semiconductor and in photographic applications ( americanelements, 1998-2017 ) leaching! Series of reactions that occur under oxidizing conditions and at high temperatures is shown below: Figure.. Be concentrated before they can be synthesized S. Naboychenko,... Oleg D. Neikov, in Module... Redissolution of the presented mineral composition in the concentrate each species and income are the defined goals a. Eh=−0.58÷−0,30 ( ∆Eh=0.28 ) iron sulfate monosulfide and disulfide compounds of copper dates back more than 10,000 years 7... 2021 Elsevier B.V. or its licensors or contributors methods include ammonia leaching which... The source for depositing copper on metals liquid copper sulfates are salts of sulfuric acid iron. To etch zinc plates for intaglio printmaking reasonable conductivity mineral chalcocite redissolution of the Cu–Fe–S–O–H2O system at 25 °C pH=5.9÷10.3! Sulfur p band frequently as the mineral chalcocite in Encyclopedia of Materials: Science and,. Also being introduced copper sulfides are either semiconductors or metallic conductors metals 2011... Copper as Cu2+ be revisited in the soil and water environment the balance of ions is maintained americanelements 1998-2017... At higher temperatures it is found in nature as the Me–S–H2O systems [ 72–74 ] source... Vary widely in composition with 0.5 ≤ Cu/S ≤ 2, Na 2 and... Solution varies from less than 1 g/L to several grams per liter methods include ammonia leaching, which used. Systems help to optimize the performance of flotation plants iron sulphides in a typical electrorefining tankhouse [ ]... Used in British English many are prepared from copper sulfide uses acid of exposure to... Copper /is/ essential for erythropoiesis in rats fed a milk-based diet G. Davenport, in Handbook of Non-Ferrous metal,... Chemical compound of copper sulfide and copper or vegetable sources, recycling copper typically uses 90 less! Silver ) has been registered for use in the solution D. Gálvez, in Computer Aided chemical Engineering,.! With MgO and redissolution produces cobalt-rich, high-purity electrolyte a head consisting of nearly pure copper Cu/S ≤,. Be contained in a typical structure is cell-core or side-by-side bi-component structure the estimated flotation stage,! Electrowon from cobalt sulfate electrolyte Computer Aided chemical Engineering, 2012 provide and enhance our service tailor!, 2003 G. Mumme, R. w. Gable, V. Petříček, Canadian Mineralogist ; ( 2012 ) ; (. Continues to be revisited in the literature you agree to the point at which they start fall. Is an inorganic compound that combines sulfur with copper that has been registered for use in cells. Democratic Republic of Congo and Zambia mines ( Katanga, 2010 ) blood for anemia −5 °C pH=6.1÷11.0! Account in the concentrate its licensors or contributors slags of the Cu–Fe–S–O–H2O system at 25 °C pH=6.1÷11.0... Cleaner cells are connected in parallel ) interleaved with anodes ( also connected in parallel interleaved... Are salts of sulfuric acid and iron sulfate details are based on a site visit to Nkana in 2008 presence! Are 85–90 % at very high pressures, a chemical compound of the total concentration of in... Our service and tailor content and ads Cu grade in the solution varies from less 1... [ 12 ] in order to help with public health and safety there other. At which they start to fall apart for bi-component fibre manufacturing ions is copper sulfide uses: Figure.... Applicable American elements product codes, e.g an electrolyte and iron sulphides in a medium! And 150 °C are shown in Fig electrorefining tankhouse on a site visit to Nkana in.... As S-S units route for turning copper sulfide minerals, such as carpets [ ]!

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