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). Such use was common in areas where smelting was done, including St Helens and Cornwall[2] in England. EC number: 266-968-3 | CAS number: 67711-92-6 | CAS number: 67711-92-6 2.2. 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. https://en.wikipedia.org/w/index.php?title=Copper_slag&oldid=967311512, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 July 2020, at 14:36. The bath principally consists of molten iron-silicate slag and molten copper matte. Characteristics and utilization of copper slag—a review. Due to rapid cooling, the melt generally consists of a fine grained mixture of different phases (Fig. The density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. Internationally the described media is manufactured in compliance with ISO 11126-3[1]. In this process, a stream of abrasive grains called grit are propelled toward the workpiece. Rate of grit consumption, amount of dust generated, and surface finish quality are some of the variables affected by the choice of grit material. Figure 4.7. 58 / Monday, March 26, 2012 / Rules and Regulations Revision date: 08/25/2015 Supersedes: 10/02/2014 Version: 2.0 08/25/2015 MineralTech CP Copper Slag Page 1 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1. 505 506 KOPKOVA et al. The chemical composition of copper slag varies with the type of furnace. Copper slag is mainly used for surface blast-cleaning. kuettner.de Aus Ko nv erter -, Anodenschlacke , k upfer - und zinkhaltigen Reststoffen sowie verunreinigten Kupfer- und Messingschrotten w ir … 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. Numerous houses in the same region are built with a slag insulated foundation.[3]. Schematic flow diagram for leaching of copper slag. "The slag contains iron oxides, which can be reduced to iron if the cooled slag is heated to 1,300 degrees Celsius and carbon is added," he explains. The copper is being produced from a copper concentrate containing around 30 - 35% of copper, iron and sulphur each along with around 12% of silica and 5% of calcium. 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. The smelting process in this company is facilitated in the reverberatory furnace with the annual capacity of 60 000 tons of anodic copper. The difference between the two methods of production greatly influences its use in PC-based materials, with the quenched granular material having a greater demand than the air-cooled CS. The average composition of primary copper slag corresponds to 30–40 % iron, 35-40% silica, less than 10 % of alumina and calcium oxide and copper content is around 1 %Cu, similar to the ore mined. Data from Gorai, B., Jana, R. K., & Premchand (2003). Upon CS production, the molten slag may either be air-cooled in an ambient environment or rapidly cooled by quenching it in a granulator. 0.79% Lead (as Pb) : Approx. 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. Copper slag is just one of many different materials that may be used as abrasive grit. 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. Figure 5.11. Reference: [1] Al-Jabri (2006), [2] Al-Jabri et al., 2009a; [3] Al-Jabri et al., 2009b; [4] Al-Jabri et al., 2011; [5] Alnuaimi, 2009; [6] Alnuaimi, 2012; [7] Amarnaath et al., 2015; [8] Ambily et al., 2015; [9] Anjana et al., 2015; [10] Anudeep et al., 2015; [11] Arivalagan, 2013; [12] Ayano and Sakata, 2000; [13] Bahadur and Nayak, 2012; [14] Brindha and Nagan, 2010a; [15] Brindha and Nagan, 2010b; [16] Brindha and Nagan, 2011; [17] Brindha et al., 2010; [18] Cachim et al., 2009; [19] Chavan and Kulkarni, 2013; [20] Cheong et al., 2007; [21] De Schepper et al., 2015; [22] Dharani et al., 2015; [23] Ghosh, 2007; [24] Gowda and Balakrishna, 2014; [25] Hwang and Laiw, 1989; [26] Illayaraja et al., 2014; [27] Jaivignesh and Gandhimathi, 2015; [28] Jebitta and Sofia, 2015; [29] Karthick et al., 2014; [30] Kayathri et al., 2014; [31] Kharade et al., 2013; [32] Koh and Lye, 2012; [33] Kumar, 2012; [34] Kumar and Mahesh, 2015; [35] Leema and Suganya, 2015; [36] Madany et al., 1991; [37] Madheswaran et al., 2014; [38] Madhu and Venkataratnam, 2015; [39] Mahendran and Arunachelam, 2015; [40] Mahmood and Hashmi, 2014; [41] Merinkline et al., 2013; [42] Mithun and Narasimhan, 2016; [43] Mithun et al., 2015a; [44] Naganur and Chethan, 2014; [45] Nataraja et al., 2014a; [46] Nataraja et al., 2014b; [47] Nazer et al., 2012; [48] Patil, 2015; [49] Patnaik et al., 2015; [50] Pazhani, 2010; [51] Ping, 2011; [52] Poozvizhi and Kathirvel, 2015; [53] Pradeep and Rama, 2014; [54] Prakash and Brindha, 2012; [55] Saxena, 2015b; [56] Priyanka and Thahira, 2013; [57] Rajkumar et al., 2015; [58] Resende et al., 2008; [59] Khan et al., 2015a; [60] Khan et al., 2015b; [61] Sabarishri et al., 2015; [62] Sakthieswaran and Ganesan, 2013; [63] Sakthieswaran and Ganesan, 2014a; [64] Sakthieswaran and Ganesan, 2014b; [65] Saraswathy et al., 2014; [66] Saxena, 2015a; [67] Shoya et al., 1997; [68] Shoya et al., 1999; [69] Shoya et al., 2003; [70] Srinivas and Muranal, 2015; [71] Sudarvizhi and Ilangovan, 2011; [72] Sudarvizhi and Ilangovan, 2012; [73] Suresh and Kishore, 2013; [74] Suresh and Ravikumar, 2015; [75] Sushma et al., 2015; [76] Tam, 2001; [77] Tamil et al., 2014; [78] Thomas et al., 2012; [79] Tiwari and Bhattacharya, 2013; [80] Tokuhashi et al., 2001; [81] Vamsi and Kishore, 2013; [82] Vamsi t al, 2013; [83] Velumani and Nirmalkumar, 2014; [84] Vimarsh et al., 2014; [85] Wu et al., 2010a. Overall, a polynomial regression is obtained, giving a correlation of 0.8087. This elucidates that it might be possible to utilize existing stockpiles of copper slags for producing alkali-activated cements, and to contribute to remedying some of the existing environmental issues associated with the disposal of these slags. 1.57% Iron (as Fe) : Approx. Data from Oracle Mining Corp. Why We Belive in Copper’s Long-term Value. Dumping or disposal of such huge quantities of slag cause environmental and space problems. Description : Copper Slag is a blast cleaning grit made of granulated slag from metal melting processes. 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. and silver (0.003%) in the slag composition. At the … For every tonne of metal production about 2.2 ton of slag is generated. A recent study evaluated the feasibility of activating ancient copper slags from the north of Chile,69 and identified notable differences in the mineralogy and chemical composition depending on the slag source. 200 sieve) in size. Table 5: Chemical Properties of Copper Slag S. No. Copper slag can be used in concrete production as a partial replacement for sand. rSiO2 solutions as activators, more moderate rates of reaction were obtained. Air-cooled copper slag has a black color and glassy appearance. 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)]. 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. Effect of copper slag (CS) on the strength of concrete keeping the water/cement ratio of copper slag concrete similar to that of the corresponding reference concrete [data taken from Table 4.3(b)]. The ulti-mate analyses of each oil are shown in Table 2. Effect of increasing air-cooled and quenched copper slag (CS) content on the compressive strength of concrete. Due to the same reasons the granulated slag is usable as a filler and insulating material in house foundations in a cold climate. The blasting media manufactured from copper slag brings less harm to people and environment than sand. Copper slag is … 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). 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. Their macrostructure ranges from a very heterogeneous aggregate of unreacted minerals bound by a fused phase, up to almost perfectly homogeneous melt (Fig. 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. Furthermore, for a given consistence, taking advantage of improved consistence resulting from the use of CS, the material can even be used to develop high-strength concrete and possibly high-performance concrete as well. 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. However, the slag tends to be vitreous or “glassy,” which adversely affects its frictional properties (skid resistance), a potential problem if used in pavement surfaces. ; Seal, R.R., Characteristics and Environmental Aspects of Slag: A Review. The multiple extraction leaching tests indicate … 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. Rinse thoroughly with water. This is helpful, as it supports the simple and empirical model used to explain the change in strength with increasing CS content. Analysis of compressive strength data presented in the literature by various studies. 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