disadvantages of copper slag

Target: No Matte Layer to Avoid Foaming 186 10.7.2. Expansive soils are a worldwide problem that creates challenges for Civil Engineers. Minerals are concentrated into slurry that is about 15 % of copper. Electrowinning 9 1.4. 10.10. … Tailings (left-over earth) containing copper oxide ar e routed to leaching tanks or are returned to the surrounding terrain . Collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields. May 01, 2010018332This inert slag can also be used for land filling, for making of road and in construction works like embankment for rivers, etc., Converter slag 0.36 kgkg of copper produced from SWIL and slag 1. slag, refining slag, or flue dusts), and copper-alloy scrap. 11.2. The split tensile strength and the flexural strength were also obtained higher strength at 40% replacement level at 28 days. Disadvantages Of Steel Slag. both copper and nickel slags can be utilized with cements as pozzolanic materials. Steel slag is a steel-making waste from the steel industry and is reused as it is in many engineering fields, including transportation and highway engineering, environmental engineering, and geotechnical engineering. Blast Furnace Disadvantages: 1. Advantages and Disadvantages 179 10.2. This also wastes time, because the welder has to clean away the slag to make a presentable product or welding job. They are considered as potential natural hazard, which can cause extensive damage to structures if not adequately treated. 10.11. Copper slag is the waste material of smelting and refining of copper such that each ton of copper generates approximately 2.5 tons of copper slag. Expansive soils are a worldwide problem that creates challenges for Civil Engineers. 2. Before the electric furnace, the fayalite slag shows a share of around 65–80% in mechanical losses. Copper Loss in Slag: The slag from the smelting process is cooled, crushed and ground before flotation to recover copper sulphides and copper metal. 10.9. Disadvantages Of Copper Slag. Cu-in-Slag Limitation of Direct-to-Copper Smelting. What makes Pyromet’s launder design innovative and safe is that it does not have any cooling water channels underneath the launder runner, whilst achieving effective cooling of the runner. "Slag cement" is also used at times to refer to a very specific material, as it is in ASTM Standards C2191 and C5952. HydrometallurgicalExtraction of Copper 8 1.3.1. Copper in Slags. Washed sand from Erzeni riverbed, (a river near Tirana, Albania) is used for producing of mortar prisms [6]. Chemistry 184 10.5. This study is done to find out the engineering behavior of lime stabilized clayey soil with Copper Slag. Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental consequences, particularly from the release of potentially toxic elements to water. ADVERTISEMENT. For this reason, with each cementing material, mortar prisms 4x4x16 cm are moulded and tested in order to determine the limits of practical use of slag addition. Direct-to-Copper Impurities. SolventExtraction 8 1.3.2. They are considered as potential natural hazard, which can cause extensive damage to structures if not adequately treated. Copper Slag an overview ScienceDirect Topics. Decreasing Copper in Slag II: Minimizing Copper Concentration in Slag. copper slag that are 0%, 20%, 40%, 60%, 80% and 100%. Disadvantages of Blast-Furnace Slag Cement Early Strength is low; therefore, it cannot be used in Reinforced Cement Concrete (RCC) works. Direct-to-CopperSmelting 7 1.2.5. The disadvantage of the reduced strength at early age can be managed by adding an optimal amount of slag. Preliminary Study on Geopolymer Concrete using Copper Slag and Vermiculite . Concentration by Froth Flotation 4 1.2.2. Slag is a waste product from the pyrometallurgical processing of various ores. Industrial Details 185 10.7. I. Projects included a five tonne ... while the major disadvantage was seen to be the risks associated with scaling up the technology from the Mount Isa demonstration plant. The production of Copper Slag is 120-130 lakh ton per annum. Despite increasing rate of reusing copper slag, the huge amount of its annual production is disposed in dumps or stockpiles to date. MatteSmelting 4 1.2.3. copper slag as a replacement of fine aggregate on the strength properties and concluded that Maximum Compressive strength of concrete increased by 55% at 40% replacement of fine aggregate by copper slag and flexural strength increased by 14 % for 40 % replacement. This inert slag can also be used for land filling, for making of road and in construction works like embankment for rivers, etc., Converter slag (0.36 kg/kg of copper) produced from SWIL and slag (1.6 kg/kg of copper) from Birla copper (Sharma, 1998a, Sharma, 1998b) is granulated and sold out to the construction companies for road making, as abrasives for shot blasting media. However, these processes have some disadvantages such as high temperature, energy consumption and production cost. First, the physical fraction consists of mechanically trapped solids, while, second, chemically dissolved particles constitute another possibility. As refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. The maximum compressive strength of concrete attained at 40% replacement of fine aggregate at 7 and 28 days. Copper slag is a by-product obtained during smelting and refining of copper. Copper slag, or fayalite slag, is a by-product obtained during the matte smelting, converting and refining of copper (Fig. Although copper slag had trace amounts of heavy metals like As, Cd, Cu, Cr, Pb and Zn in its composition, they were found to be stabilized due to their encapsulation by the bitumen present in asphalt mix [72]. Chapter 11. MeltingandCastingCathodeCopper 10 1.4.1. Industrial Single Furnace Direct-to-Copper Smelting 182 10.4. Water is recycled. In C219, slag cement is defined as a "blend of granulated blast-furnace slag and hydrated lime in which the slag constituent is more than a specified minimum percentage." 11.4. As the initial setting time is high, this cement is not used for emergency or repair works. Keywords: Pyrometallurgy, furnace, auxiliary equipment, copper slag launders Abstract – Pyromet has designed copper launders for tapping slag. Some welding methods leave slag when they are finished, making the finished product look sloppy. Per ton of copper produced, 2.2 tons of slags are generated. The production of Copper Slag is 120-130 lakh ton per annum. April 7, 2018 Posted by: RSIS; Category: Civil Engineering; No Comments . The construction of the furnace is basically related to that of the iron blast furnace, but there are considerable differences in design, especially in size and shape: the copper blast furnace is lower and smaller, and its cross section is rectangular. The waste copper slag can be used as abrasive tools, road construction, and ballast. 2312 Words 10 Pages. Converting 5 1.2.4. Slag From Copper Mines - chtipizz.fr. The copper ore treatment process in RTB Bor produces significant amounts of mine waste material such as: mining waste, flotation tailing and copper slag (Stanojlovic et al., 2014). and copper slag processing plant, which are located in and around Bor, plus the Majdanpek mine and flotation processing plant located some 80 km northeast of Bor. The blast furnace ironmaking damages the environment very much. In these slags, higher copper … 11.3. 54,59 It has been estimated that for every tonne of copper produced, about 2.2 tonnes of slag is generated, 60 as a consequence of the relatively low grades of Recovery of Cobalt and Copper from Nchanga Mines Slag Copper slags are considered as a waste product of pyrometallurgical copper extraction from ores. Keywords: Copper slag, UCS, CBR, Lime, Stabilization . Extracting Copper from Copper—Iron—SulfideOres 2 1.2.1. The slag/metal distribution ratio of indium between molten copper and slags in the copper saturated CaO-SiO 2 -FeO x system with Fe/SiO 2 = 1.1 to 1.2 and CaO contents between 4 wt. The slag reaches a temperature of about 3500°F (1930°C). Decreasing Copper in Slag I: Minimizing Slag Generation. Development policy and plans of Our researcher experts helps us to present our clients with a comprehensive and in-depth analysis of Copper Slag market. Copper tailing is the waste rock remaining after ore has been processed to remove the copper. 7.11). Copper Loss in Slag 11.1. The rebound hammer test showed higher compressive strength at 40% fine aggregate replacement. Copper slag is a by-product created during the copper smelting and refining process. Related product: Blast Furnace slag Fire RefiningandElectrorefining ofBlister Copper 7 1.3. Main laboratory tests include Un-confined compressive strength test (UCS), California bearing ratio test (CBR). Copper Slag is one of the waste byproduct produced by ‘Hindustan Copper limited’, Khetri, Rajasthan, India. In parallel with the copper slag treatment work, the CSIRO was continuing to work in tin smelting. 3. Copper losses in the slag can generally be split into two categories. TIG welding is very clean and leaves no slag at all, so the welder can concentrate on welding instead of cleaning up the metal. High % Cu-in-Slag from No-Matte-Layer Strategy 186 10.8. It is used as either an additional or substitute material in road construction, filter or soil stabilizer in these cases. Metal droplets fall to the weld pool and join the work pieces. Waste slag is removed. Summary. Control 186 10.7.1. Blast furnace ironmaking is inseparable from the coke source, but the coke resources are getting less and less, but the price is getting higher and higher, the cost of iron making will be higher and higher, and it is likely that one day will meet the depletion of coke resources. It is usually pulverized to the size of fine sand. Effect of Slag Composition on % Cu-in-Slag 185 10.6. The Ideal Direct-to-Copper Process 179 10.3. I***ODUCTION . Copper Slag is one of the waste byproduct produced by îHindustan Copper limited, Khetri, Rajasthan, India. disadvantages of copper slag in concrete. disadvantages of clay can be overcome by stabilizing with suitable material. 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