Environmental and Socioeconomic Impact of Copper Slag …
Abstract. Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include ...
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Copper processing
Copper processing - Roasting, Smelting, Converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace of …
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Recovery of Copper, Lead and Zinc from Copper Flash Converting Slag …
Nonferrous metals (Cu, Pb, Zn) remaining in copper converting slag have become a global problem in copper pyrometallurgy. 1 By the end of 2020, more than 30 copper smelters were put into operation in China with an annual capacity of refined copper of 10,225 kt, ranking first in the world. 2,3 After more than 100 years of development, …
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Flowsheet Options For Processing Copper Gold & Gold …
The processing of gold-copper ores (higher values of gold than copper) typically follows the route of cyanidation, whereas for copper-gold ores (higher copper than gold values) the process route is typically flotation and smelting.
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The potential for copper slag waste as a resource for a …
Air-cooled and granulated copper slags have several favourable mechanical properties for use as aggregates in construction such as excellent soundness characteristics, excellent abrasion resistance and good stability (Gorai et al., 2003).These properties of copper slag make it suitable as a partial or full replacement for Portland …
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The fate of molybdenum in the residues of a Chilean copper ore
Nevertheless, since there are many old residues in Chile, the effort should be worthwhile, since results can be extrapolated to the many old heaps existent in Chile. 5. Conclusions. In the present work, the fate of Mo in a Chilean copper processing plant has been studied by mineralogical and geochemical methods.
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Implementation and practice of an integrated process to recover copper
The process development at Zijinshan mine covers both gold and copper ore processing. The gold ore processing was started in 1993; Table 3 summarizes the history of mining and processing for gold ore. In term of processing, there are four stages for the process development and implementation at Zijinshan gold mine:
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Behavior of platinum in the system of the matte-slag in the processing …
The addition of fluorite to the mixture of copper–nickel matte and model slag (CaO/SiO2/Al2O3 = 40/40/20) significantly reduced the sulfur content and non-ferrous metals by 1.5 times, whereas ...
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Feasibility of Recovering Valuable and Toxic Metals …
Although the disposal of copper slag is considered the least favorable option, this trend will continue even at a higher rate [ 6, 7 ]. Since 1902, 652 Mt of ore has been extracted from the Bor region, yielding 4.93 Mt of copper and 280 metric tons of gold.
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A Review of Comprehensive Utilization of Copper Slag of …
Full size image. The copper content of copper slag is 0.5–4.5% or even higher, which is much higher than the 0.2–0.3% mining grade of copper mines in China. The total iron content in copper slag is about 40%, which is significantly higher than the mineable grade of iron ore in China (TFe > 27%) [ 10 ].
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Copper Slag
The chemical composition of copper slag varies with the type of furnace. 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%. The density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. The average specific gravity of copper ...
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Development of copper recovery process from flotation …
The total copper recovered from its ore through flotation process is about 56% [6, 18], which indicates that the flotation tailings still contain valuable copper components such as chalcopyrite. In addition, old flotation tailings sometimes have a higher copper grade (0.2–0.4%) than that of low‒grade ores (0.2‒0.3%).
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Copper Slag Beneficiation Process & Equipment
It produced a large amount of copper slag during the copper ore beneficiation process. Most of the precious metals in the waste slag are symbiotic with copper. It can achieve comprehensive and effective utilization of resources through reasonable recycling. Copper slag is primarily black or brown, with a metallic luster on the surface.
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Copper Slag Processing Line
Forui Machinery hereby introduces a copper slag processing line, which can effectively recover copper particles from copper smelting slag. Technological Process. The most important function that copper slag processing production line should have is to recover copper metal particles from copper smelting slag.
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Ore Processing Plant, gold ore processing plant, copper ore processing
This Plant used for gold, copper, iron ore etc. Process of Ore Processing Plant: the ore is first sent to the jaw crusher for primary crushing. Then the ore with a proper size for secondary crushing will be sent into the ball mill for fine crushing and grinding. The ore powder discharged from the ball mill will be sent to the next procedure ...
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Sustainable and Comprehensive Utilization of Copper Slag: …
Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or ferrous …
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Recovery of valuable metals from copper slag | Mining, …
The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary resource. In the present study, the extraction of copper, nickel, and cobalt from copper slag was investigated through the process of sulfation roasting–water leaching and the process of sulfation …
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Review on Comprehensive Recovery Valuable Metals and
Copper slag, a waste solid produced in the copper smelting process, is a high-quality secondary resource with huge output. The recycling and utilization of copper slag is of great interest because it avoids the loss of valuable metals and the threat of harmful metals, and saves a lot of natural resources and energy. This paper firstly …
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Melting of Gold-Containing Concentrates with Copper
A tenacious gold-containing ore is sulfide material with increased copper content. The last stage of pyrometallurgical treatment for these ores is electrorefining of the copper obtained with extraction of valuable metal from anode slurry [].An effective method for processing these ores is high-temperature autoclave oxidation [13,14,15,16].The …
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Jubilee Metals awards new slag project with Mopani Copper …
The Slag Project in Zambia consists of some 13 Mt of historical slag from previous operations in the area, estimated to retain deposits of 0.7% copper and 0.27% cobalt. Under the JV, Jubilee and Mopani have been appointed to design and operationalise the slag processing facility, with potential for the mandate of the agreement to also …
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Environmental and Socioeconomic Impact of Copper …
Copper slag, as its name suggests, contains traces of copper, and most copper ores are associated with other metallic elements such as cobalt. Various studies have been conducted to recover copper …
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SUSTAINABILITY OF COPPER SLAG PROCESSING FROM NEW
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). ... (31,66 %), gold (22,99 %) and silver (22,10 %) was achieved in the Bor flotation plant. The average content of copper, gold and silver in the produced copper ...
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Minerals | Free Full-Text | Processing of Waste Copper Converter Slag
An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids. In the leaching experiments, the effects of organic acid concentrations, pulp density, temperature, and time were investigated. Optimum recovery of 99.1% Cu, …
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Environmental and Socioeconomic Impact of Copper Slag…
Numerous slags are produced as a second stream which is not desired in various metallurgical processes, e.g., copper slag (CS) from smelting and processing of copper ore [1,2].The main mineral ore source for copper is chalcopyrite (CuFeS 2), with the smelting process contributing approximately 80% of the global copper production …
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A new method of full resource utilization of copper slag
Sarfo et al. (2017) carried out carbothermal reduction process of copper slag (from the United States) by mixing 12.5% carbon with copper slag and reacting at 1420 °C for 0.75 h. The initial copper slag is reduced to low-grade pig iron with the recovery efficiency of up to 90% (Sarfo et al., 2017). However, non-ferrous metal elements can …
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Gravity Separation: Highly Effective Tool for Gold …
As a valuable secondary source, the slag resulted from the gold-bearing electrolytic mud smelting contains up to 0.8–15 k g t −1 Au and 9–13 kg t −1 Ag, respectively. The gravity separation's use to concentrate gold contained by the slag causes significantly reduced reagents and energy consumptions.
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Recovery of Valuable Metals from Nickel Smelting …
Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel slag in stockpiles results in environmental pollution. …
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Sustainable and Comprehensive Utilization of …
Reijnders reviewed the feasibility of a zero-waste copper production with a focus on the recovery of scarce companion elements but not going into details of slag processing and environmental behavior of CUS or CUS processing residues.
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(PDF) Precious metal content in copper concentrate and slag …
In the present work, the precious metals like gold and silver content in concentrate and slag are analyzed. Copper concentrate contains less than 2ppm of gold and less than 120ppm of silver. Slag ...
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Gold Fire Assay Process
The Gold Fire Assay Process of ores is almost universally conducted in the dry procedure by furnace methods. Exceptions will be noted later. The plan of operation is to concentrate the precious metal in a button of lead either (1) Fire Assay By fusion in a crucible; or, more rarely, (2) Fire Assay By scorification.The button of lead obtained by …
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