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Copper slag was subjected to indepth mineralogical characterization by integrated instrumental techniques and evaluated for the efficacy of physical beneficiation and mixed mesoacidophilic bioleaching tests towards recovery of copper. Pointtopoint mineral chemistry of the copper slag is discussed in detail to give better insight into the association of copper in slag.
#0183;#32;Copper slag was subjected to indepth mineralogical characterization by integrated instrumental techniques and evaluated for the efficacy of physical beneficiation and mixed mesoacidophilic bioleaching tests towards recovery of copper. Pointtopoint mineral chemistry of the copper slag is discussed in detail to give better insight into the association of copper in 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. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. As in all mining operations, the ore must usually be beneficiated. The processing techniques depend on the nature of
leaching of copper from copper slag is shown in Figure 1. RESULTS AND DISCUSSION Table I gives the chemical composition of the copper slag; the results are obtained by using Xray fluorescence analysis. It can be observed from the analysis that iron, silicon and calcium are the major constituents. Table I. Chemical analysis of copper slag.
#0183;#32;Copper slag is a byproduct created during the copper smelting and refining process. As refineries draw metal out of copper ore, they produce a large volume of nonmetallic dust, soot, and rock. Collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields.
EXTRACTION OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS 2). Chalocite (Cu 2 S) or copper glance. Malachite green [CuCO (OH) 2]. Azurite blue [2CuCO (OH) 2]. Bornite (3Cu 2 3) or peacock ore. Melaconite (CuO) etc. EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper
Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings. Hydrogen peroxide was determined to be the best lixiviant. Thus, copper and iron extractions were % and %, respectively, when leaching the slag with 3 M H 2 O 2
Panda et al. [29] noted that the range of pulp densities from 15% to 25% resulted in a similar Cu extraction (~70%) from copper slag, whereas a lower pulp density (lt;15%) enables an almost Cu
So, extraction of Copper from it becomes very difficult amp; it is a lengthy process because (i) It contains many impurities in such a high amount that the percentage of Copper in it becomes only 23%. (ii) Copper has more affinity to sulphur than Fe.
The major steps in the extraction of copper are. Copper in Chalcopyrite is reduced to copper sulphide. Just like in Blast Furnaces, calcium carbonate is added as a flux to create the slag. Iron in Chalcopyrite is removed as iron silicate slag. Most of the sulphur in Chalcopyrite turns into Sulphur dioxide (SO 2).
Copper concentrate and slag produced during the process of copper extraction from chalcopyrite contain precious elements such as silver (Ag) and gold (Au), which further elevates the economic
Processing of copper converter slag for metal reclamation. Part I: Extraction and recovery of copper and cobalt. Deng T(1), Ling Y. Author information: (1)Institute of Process Engineering, Chinese Academy of Sciences, Beijing, PR China. dengt111 Clean processing of copper converter slag to reclaim cobalt and copper could be a challenge.
Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings. Hydrogen peroxide was determined to be the best lixiviant. Thus, copper and iron extractions were % and %, respectively, when leaching the slag with 3 M H 2
metallurgy of copper extraction of copper blister copper FeSiO3 (slag) floats over the molten matte of copper BESSEMERIZATION Copper metal is extracted from molten matte through bessemerization The matte is introduced in to Bessemer converter which uphold by tuyers The air is blown through the molten matte Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give
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