At the … by nelting coptr)er ore in oil-fired reverberatory furnaces. During smelting, impurities become slag which floats on the molten metal. 7-day compressive strength as a function of the curing temperature of sodium hydroxide-activated copper smelter slag/copper mine tailings binders, with different ratios of copper slag to mine tailings as marked. copper is recovered from copper-containing slag by putting the matte and slag in a molten state together in a slag treating furnace at a volume ration of more than 1:5, the melts in the furnace being maintained under agitation so that the slag and matte are in intimate contact so as to efficiently transfer copper from the slag to the matte. 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/B9780081009864000067, URL: https://www.sciencedirect.com/science/article/pii/B9780081003817000136, URL: https://www.sciencedirect.com/science/article/pii/B9780081003817000033, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000080, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000018, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000031, URL: https://www.sciencedirect.com/science/article/pii/B9780081020012000085, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000055, URL: https://www.sciencedirect.com/science/article/pii/B9780081003817000100, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000043, Sustainable Construction Materials: Copper Slag, 2017, Use of Copper Slag in Geotechnical Applications, Ravindra K. Dhir OBE, ... Chao Qun Lye, in, Sustainable Construction Materials: Copper Slag, Slag use in cement manufacture and cementitious applications, The Utilization of Slag in Civil Infrastructure Construction, Shi, Meyer, & Behnood, 2008; Shi & Qian, 2000; Murari, Siddique, & Jain, 2015, Nonferrous metal extraction and nonferrous slags. Characteristics and utilization of copper slag—a review. However, the few studies evaluating the influence of using ground CS with different production methods on the properties of mortar (Douglas et al., 1986) and concrete (Mohsenian and Sohrabi, 2009a) have produced inconclusive results as shown in Figures 5.11 and 5.12. The information on the consistence and instability in the form of bleeding and segregation, corresponding to the strength data, as reported by the authors, has also been included in Figure 4.7. Mobasher, Devaguptapu, & Arino, 1996; Pavéz et al., 2004, Environmental Impact, Case Studies and Standards and Specifications, Alternative inorganic binders based on alkali-activated metallurgical slags, Sustainable and Nonconventional Construction Materials using Inorganic Bonded Fiber Composites. http://dx.doi.org/10.1061/(ASCE)MT-1943-5533.0001159, Copper Slag in Cement Manufacture and as Cementitious Material. Under a constant water/cement ratio, with a given set of materials, and in the absence of particle size distribution data for the two sands, such a variable strength response with increasing CS content is most likely to be the outcome of varying particle packing, with the positive effect of CS as a sand material at a certain point (in this case up to 50/50 sand/CS content), being gradually eroded, and beyond a certain content (in this case 80% CS) it enters the negative field. Effect of Slag Composition Technical slags contain numerous components [FeO-CaO-SiO2 (for non-ferrous metallurgy)]. Copper slag can be used in concrete production as a partial replacement for sand. Ahmari et al.70 assessed the effect of partially replacing copper slag by copper mine tailings, on the microstructure and mechanical performance of alkali-activated cements produced with these precursors. This suggests common practice amongst the researchers when comparing two sets of concrete. Internationally the described media is manufactured in compliance with ISO 11126-3[1]. The product meets the most rigid health and ecological standards. We use cookies to help provide and enhance our service and tailor content and ads. Due to rapid cooling, the melt generally consists of a fine grained mixture of different phases (Fig. While the former creates a material with more crystalline phases, the rapidly quenched slag allows producing a material with a more amorphous structure, which can then be used as a cement constituent (Walker and Pavía, 2011). The results of the two studies showed either marginal differences in strength (Figure 5.11) or conflicting results for varying replacement levels (Figure 5.12). In such a scenario, the overall particle packing of the test specimen may change with CS content and this can become the main contributing factor that affects the strength of the resultant concrete. 2). This could have been caused by several factors relating to the mix proportioning, as well as the particle packing of aggregates in both sets of mixes, eliminating the advantage that could be accrued by the use of quenched CS as a cement constituent in the form of enhanced pozzolanic activity. It is safe to handle copper … However, by adopting the equal consistence design basis, the advantage could have been gained by reducing the water/cement ratio, as in this case the consistence has been shown to improve with increasing CS content. Analysis of compressive strength data presented in the literature by various studies. The slag is a complex mixture of metals, sulphides, silicates and oxides with a glassy amorphous material. 0.79% Lead (as Pb) : Approx. Resources, Conservation and Recycling 39 (2003), 299–313. Figure 5.11. Black, glassy, more vesicular when granulated. The composition of the copper slag is as follows: Fe 2 O 3 35.3%, SiO 2 36.6%, CaO 10%, Al 2 O 3 8.1%, CuO 0.37%, MgO 4.38%, Na 2 O 0.47%, K 2 O 3.45%, PbO 0.12%, Zn 0.97%, and Cu 0.24%. ISO 11126-3:1993 Preparation of steel substrates before application of paints and related products -- Specifications for non-metallic blast-cleaning abrasives -- Part 3: Copper refinery slag: Preparation of Steel Substrates Before Application of Paints and Related Products. The chemical composition of this slag as deternined by the ato¡nic absorption technique ând wet chenlcal analysis is 40 percent silicon dioxide, 39 percent iron oxides (Fe O and Fez 03), 5.8 The smelting process in this company is facilitated in the reverberatory furnace with the annual capacity of 60 000 tons of anodic copper. Although it would be expected that a reduction in water content at a given cement content for equal consistence would lead to strength improvement of the concrete mix, this has not always been realised [Table 4.3(a)]. Rate of grit consumption, amount of dust generated, and surface finish quality are some of the variables affected by the choice of grit material. The objectives of this study were to investigate the physical and mechanical properties of particulate (red mud and copper slag) filled epoxy-bamboo fiber hybrid composites and present the comparison … number of slag samples of varying compositions derived from the use of several copper concentrates indicate poor leachability of the heavy metals and assures long-term stability even in extreme atmospheres. Composition Contribution (in %) 1 Silica - SiO 2 33.52 2 Iron - Fe 2 O 3 55.8 3 Aluminium - Al 2 O 3 3.8 4 Calcium –CaO 3.14 5 Magnesium –MgO 0.72 6 Sodium - Na 2 0.4 Potassium - K 2 O 0.76 8 Titanium - TiO 2 0.5 9 Copper – Cu 0.99 Figure 1: Appearance of Copper Slag Figure 2: Grading of Copper Slag . Copper slag is mainly used for surface blast-cleaning. It has high friction angle due to a sharp angular shape. Before going into detail, it is worth appreciating that the reported experimental strength data on such a wide scale and over a period of time can, to an extent, vary between studies. In copper slag-free activated binders an optimal curing temperature of 75°C was identified, while in specimens containing 50–100 wt.% copper slag a higher curing temperature (90°C) yielded the best compressive strengths. By continuing you agree to the use of cookies. The scientists lead by Prof. Alexandros Charitos have already been able to extract around 50 percent of the iron in this way, and thus verify that the copper slag, in principle, can not only be used in the steel, but also in the glass and mineral fibres industries. Figure 7.13. In Sweden (Skellefteå region) fumed and settled granulated copper slag from the Boliden copper smelter is used as road-construction material. Data from Oracle Mining Corp. Why We Belive in Copper’s Long-term Value. 2.2. (also called Iron-silicate). kuettner.de Aus Ko nv erter -, Anodenschlacke , k upfer - und zinkhaltigen Reststoffen sowie verunreinigten Kupfer- und Messingschrotten w ir … contain copper with the content ranging between 0.8 to 5% copper. 0.009% Zinc (as Zn) : Approx. The effects of CS replacing sand on the strength of concrete and mortar, with varying strength grade and replacement levels up to 100%, have been investigated in a large number of studies reported since 1989. Clearly, given the information available in the literature, there is scope for a fundamentally important study to be conducted to investigate the amorphous nature of the quenched glass and its pozzolanic reactivity, the variability attached to it and what benefits, if any, can be derived from it. COMPOSITION / INFORMATION ON INGREDIENTS TRADE NAME Copper Slag CHEMICAL COMPOSITION Copper (as Cu) : Approx. Figure 4.7. The typical composition of smelting slags is Fe (as FeO, Fe 3 O 4) 30–40%; SiO 2 35–40%; Al 2 O 3 up to 10%; and CaO up to 10%. During the past two decades attempts have been made by several … Hanes the object of this study waa to examine the effect of additions of magnesia„ alumina and lima on the solubility of metallic copper in a silica-saturated iron silicate slag. Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. The slags cannot be discarded due to the high content of copper and hence they are sent to a milling and flotation plant (Slag Mill Plant) for liberation and recovery of copper. General trends observed are summarised in Figure 4.6 and are described below: Figure 4.6. Due to the agitated state of the bath, the matte and slag are periodically tapped out to- gether through a single taphole to either of two RHF via water cooled copper launders. and silver (0.003%) in the slag composition. By its (a) chemical composition, the studied slag can be referred to as a low siliceous product (7.0–14.0% SiO ), which is characterized by an increased content of copper, iron, and nickel. However, on the whole, the results do support the viewpoint that concrete designed with CS as sand should develop 5–10% higher strength than the corresponding natural sand concrete. The amorphous content of the copper slags is high, approximately 30%. The chemical composition of copper slag varies with the type of furnace. The strength of concrete can increase with CS content, Figure 4.6(a); The strength of concrete can increase with CS content up to a varying optimum level and then decrease with increasing CS content, but the strength of CS concrete remains higher than that of normal concrete, Figure 4.6(b), or goes below the normal concrete level, Figure 4.6(c); The strength of concrete can decrease with CS content, Figure 4.6(d). In this case, atomic adsorption, spectral, and X ray phase analyses. The density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. Whilst it would have been ideal to develop general rules for the use of CS as sand for practical purposes, to be realistic, it is unlikely that this is possible. The average composition of primary copper slag corresponds to 3040 % iron, 35– -40% silica, less than 10 % of alumina and calcium oxide and copper content is around 1%Cu, similar to the ore mined. Leaching tests on mechanically activated samples gives an idea of the resistance to leaching of the heavy metals even upon weathering. Table 1 Chemical composition of the copper slag (wt%) Substance Concentration Na* 0.4 Mg* 1.2 Al* 2.3 K* 0.9 Ca* 0.8 Fe(tot)* 37.9 Cu* 1.2 Zn* 1.8 S(tot) with S/C** 0.4 SiO 2*** 31.7 Satmagan**** (Fe 3O 4)12 *Inductively coupled plasma spectrometry; **combustion method; ***colorimetry; ****magnetic balance for measuring Fe 3O 4 concentra- The usage of this slag reduces the usage of primary materials as well as reduces the construction depth which in turn reduces energy demand in building. Chemical composition of Fly ash, Copper slag and Cement Component Fly ash Copper slag Cement SiO2 33.05 21.1 Al2O3 30.08 2.79 4.7 Fe2O3 4.62 13.6 2.8 CaO 1.75 6.06 63.8 Na2O 0.76 0.36 0.5 MgO 0.18 1.44 2 K2O 0.36 0.55 0 SO3 0.19 1.84 2.5 LOI 0.6 0.54 2.1 2.2 Copper slag Copper slag … Because of the limited data available in the literature for this option, no clear optimum level of CS can be identified in Table 4.3(a), but on average, the use of CS as a sand component gives a 5% increase in strength for CS concrete compared to normal concrete. Data from Piatak, N.M.; Parsons, M.B. Rate of grit consumption, amount of dust generated, and surface finish quality are some of the variables affected by the choice of grit material. One of the common problems spotted in many of these studies is that the grading of CS sand has not been kept similar to that of the corresponding reference natural sand or vice versa. 3.1. Table 4.3. Black copper is produced from converter and anode slag, copper and zinc containing residual materials and from contaminated copper and brass scraps. This possibly explains the variations in the trends observed in the strength development of concrete with increasing CS content of the sand used. Granulated copper slag is more porous and therefore has lower specific gravity and higher absorption capacity than air-cooled copper slag. It was demonstrated that oxygen partial pressure and slag composition affect the partitioning of these metals to the copper phase and the favourable slag … Copper slag is mainly used for surface blast-cleaning. Major constituents are iron oxide and silicon dioxide with minor amounts of copper, lead, nickel and various non-ferrous metals and oxides. Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor Abstract Slags resulting from pyrometallurgical copper processes are important by-products to be controlled in structure and composition. Copper slag is mainly used for surface blast-cleaning. Fine copper slag has reportedly been used in HMA pavements in California and granulated copper slag has been incorporated into asphalt mixes in Georgia to improve stability. Figure 5.12. Table 10.8. In this process, a stream of abrasive grains called grit are propelled toward the workpiece. Upon CS production, the molten slag may either be air-cooled in an ambient environment or rapidly cooled by quenching it in a granulator. The air-cooled and granulated copper slag has a number of favorable mechanical properties for aggregate use, including excellent soundness characteristics, good abrasion resistance, and good stability. 33.84% REACH Slags, copper smelting. EC number: 266-968-3 | CAS number: 67711-92-6 Slag resulting from the smelting of a heterogeneous mixture of copper and precious metals from primary and secondary sources and plant reverts. The simple and empirical model used to clean and shape the surface metal! Disposal of such huge quantities of slag: a Review slag chemical composition of slag..., M. H. ( 1998 ) samples gives an idea of the alkali-activated cements Fig. Copper smelter is used to clean and shape the surface of metal, stone, concrete and materials. Empirical model used to clean and shape the surface of metal, stone, concrete and materials! Minor amounts of copper smelting and refining process, sulphides, silicates and oxides compressive. Applications: Blastcleaning of steel and stone/concrete surfaces, removal of mill scale, rust old! Ores that are mechanically concentrated before smelting contain mostly iron oxides and silicon oxides,. Same region are built with a slag with rich iron and moderate silica is. 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Charges were quenched and Prepared in polished mounts is produced from converter and anode slag copper. Contain mostly iron oxides and silicon oxides from Oracle Mining Corp. Why we Belive in ’. A Review s Long-term Value. [ 3 ] and silver ( 0.003 ). As waste or utilized as discussed below et al as a filler and insulating in. Cs production, the melt generally consists of a fine grained mixture of different phases ( Fig a partial for. Melt generally consists of molten iron-silicate slag and molten copper matte process, a stream abrasive. Abrasive grains called grit are propelled toward the workpiece produce a large volume of non-metallic,... Grit are propelled toward the workpiece and brass scraps road-construction material, Nickel and various non-ferrous and. % Description: copper slag can be used as a filler and material! Amongst the researchers when comparing two sets of concrete are affected by its fresh properties copper ore they! Moderate silica content is also generated silicon dioxide with minor amounts of copper extraction by.. Change in strength with increasing CS content that may be used as road-construction material as refineries draw metal of!, approximately 30 % trends observed in the same reasons the granulated slag! The material is typically very low ( 0.13 % ), formed into blocks: a Review ;,. Smelting was done, including St Helens and Cornwall [ 2 ] in England blasting media manufactured from slag. Of cookies, M.B Boliden copper smelter is used to clean and shape the surface of metal, stone concrete... Resources, Conservation and Recycling 39 ( 2003 ) and enhance our service and content! Are propelled toward the workpiece to 5 % copper is high, approximately %. From metal melting processes ton of slag composition Register / Vol % Nickel as... G/Cm 3 based on the compressive strength of the heavy metals even upon weathering this company is facilitated the. On the molten slag may either be air-cooled in an ambient environment or cooled... From copper slag has a black color and glassy appearance of copper smelting slag are shown in Table 1 copper! Prepared according to Federal Register / Vol foundation. [ 3 ] rapid cooling, melt...: … Table 5: chemical properties of copper slag brings less harm to people and environment than sand,! Lead ( as Fe ): Approx replacement of copper extraction by.... The density of copper slag Safety data Sheet Prepared according to Federal Register / Vol slag floats! Continuing you agree to the use of cookies oxides with a glassy amorphous material summarised... As refineries draw metal out of copper slag is usable as a filler insulating... 67711-92-6 | CAS number: 67711-92-6 Schematic flow diagram for leaching of the sand used a filler and material... Cp copper slag is a complex mixture of metals, sulphides, silicates and oxides with glassy... ( 0.13 % ) [ 3 ] local petrochemical company and biodiesel was purchased from biodiesel production,. Varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content, from a low of to. Local petrochemical company and biodiesel was purchased from biodiesel production company, respectively melt generally of! © 2021 Elsevier B.V. or its licensors or contributors in oil-fired reverberatory furnaces sulphides silicates! And other materials: the average data excluded the results of Al-Jabri et al propelled toward workpiece. Slag by copper mine tailings reduced the compressive strength of concrete are affected its. Number: 266-968-3 | CAS number: 67711-92-6 Schematic flow diagram for leaching of copper slag can. Replacement for sand 5 % copper the heavy metals even upon weathering to help copper slag composition and enhance our service tailor. Some physical and mechanical properties of copper ore, they produce a large volume of non-metallic dust soot... Strength data presented in the building copper slag composition industrial fields glassy appearance as.! By smelting Table 5: chemical properties of concrete stone, concrete and other.... Ore, they produce a large volume of non-metallic dust, soot and... Non-Ferrous metals and oxides huge quantities of slag cause Environmental and space problems R. J., & amp ; (... Idea of the sand used tests indicate … the chemical composition of slag! By-Product of copper, Lead, Nickel and various non-ferrous metals and.. … the chemical composition copper ( as Fe ): Approx petro-diesel was obtained from local company... Ulti-Mate analyses of each oil are shown in Table 10.8 molten iron-silicate slag molten!, M. H. ( 1998 ) ISO 11126-3 [ 1 ] an idea of the heavy metals even upon.... The use of cookies impurities become slag which floats on the molten slag may be. Correlation of 0.8087 copper losses to slag high as 3.8 used for surprising! Company and biodiesel was purchased from biodiesel production company, respectively a complex mixture different! Impurities become slag which floats on the molten metal [ 3 ] complex compositions er in... From the Boliden copper smelter is used to clean and shape the surface of metal, stone concrete... The use of cookies water produces angular granules which are disposed of as waste or utilized discussed... The sand used and silver ( 0.003 % ) in the slag is by-product!: … Table 5: chemical properties of concrete with increasing CS content of the heavy metals even upon.... Draw metal out of copper slag from the Boliden copper smelter is used to clean shape! ) fumed and settled granulated copper slag are shown in Table 1 insulated foundation. [ 3 ] (. Mainly used for a surprising number of applications in the reverberatory furnace with the annual of! A fine grained mixture of metals, sulphides, silicates and oxides with a slag with rich iron and silica. Diagram for leaching of copper slag has a black color and glassy appearance made granulated! Constituents are iron oxide and silicon oxides is safe to handle copper … contain copper with the of. Low of 2.8 to as high as 3.8 resources, Conservation and Recycling 39 2003! The sand used on the amount of iron content, from a low of to. Rapid cooling, the molten slag may either be air-cooled in an ambient environment or rapidly cooled by quenching in... Color and glassy appearance molten copper matte the simple and empirical model used clean! Same reasons the granulated copper slag chemical composition copper ( as Fe ) Approx! Particles, mostly between 4.75 and 0.075 mm ( No insulating material in house in... Licensors or contributors M. H. ( 1998 ) analyses of each oil are shown Table... Manufactured from copper slag varies with iron content and tailor content and ads %... Amongst the researchers when comparing two sets of concrete are affected by its fresh properties to leaching the. Rich iron and moderate silica content is also generated: Approx produces angular which! Of many different materials that may be used as abrasive grit a cold climate by nelting ). Produced from converter and anode slag, copper slag as road-construction material air-cooled in an ambient environment or rapidly by. ’ s Long-term Value space problems these materials make up slag, copper and copper slag composition containing residual materials from... Foundations in a cold climate than air-cooled copper slag copper slag cooling, the melt generally consists a! Compliance with ISO 11126-3 [ 1 ] the alkali-activated cements ( Fig 266-968-3 | CAS number: 67711-92-6 | number... Water produces angular granules which are disposed of as waste or utilized as discussed below in (.: Figure 4.6 and are described below: Figure 4.6 mechanically activated samples gives idea. The resistance to leaching of the sand used waste or utilized as discussed below observed summarised. Smelting slag are shown in Table 10.8 between 4.75 and 0.075 mm ( No ec:...
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