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2021/07/20working of copper slag cleaning furnace
Comprehensive review on metallurgical recycling and cleaning of
2021/5/1 The copper slag produced by the slag cleaning furnaces as a final by-product, yields copper in the range of 0.55–1.3 wt.% in the discarded slag, with copper
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Sustainable and Comprehensive Utilization of Copper Slag: A
2023/4/21 The settling is mainly conducted in an electric furnace, teniente slag cleaning furnace (HLE) or other drum type furnaces or ladles [58, 144]. The HLE has a
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INNOVATIVE TECHNOLOGIES FOR COPPER SMELTING
2019/9/2 The smelting and converting El Teniente process for copper concentrates as well as slag cleaning furnace technologies to
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Modelling of copper (I) oxide reduction in a copper
2022/11/13 The metallurgical industry is ini a ng their ac ons into. minimizing and processing of s lags t o achieve sustainable development and circular. economy. Reduc on of copper oxide is an important ...
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Cleaning of a copper matte smelting slag from a water-jacket
2009/5/30 Cleaning experiments of a copper matte smelting slag from the water-jacket furnace was undertaken by direct reduction in a laboratory-scale electric furnace.
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Copper Smelting Slag Cleaning in an Electric Furnace by Using
2020/12/1 The distribution of matte particles in each slag layer after cleaning was investigated in detail, which indicates that the copper content in the upper slag layer can
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Cleaning of a copper matte smelting slag from a water-jacket furnace
2009/5/30 Cleaning experiments of a copper matte smelting slag from the water-jacket furnace was undertaken by direct reduction in a laboratory-scale electric furnace. The effects of coal-to-slag ratio, w, and the reduction time, t, were considered for two different coal/slag mixing procedures. In the first procedure, metallurgical coal was
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Copper Smelting Slag Cleaning in an Electric Furnace by
copper content in the slag during the cleaning process using WCO was clarified. The results obtained in the present research may promote the application of WCO to the process of copper slag cleaning and provide a new approach to WCO utilization. II. EXPERIMENTAL A. Materials 1. ISASMELT copper slag A representative ISASMELT
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Minimization of Copper Losses in Copper Smelting Slag
cal processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in dis-card slag typically in the range of 0.55 wt.% and 1.3 wt.%,with most plants reporting copper losses in
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Magnetohydrodynamic Copper Slag Cleaning - Springer
2023/3/24 The future challenge for copper smelters is to increase metal yield by reducing copper losses and valorizing the slag as a marketable by-product. This can be achieved through further slag cleaning in a conventional submerged arc furnace (SAF) where remaining metallic oxides are reduced, and metal droplets have more settling
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Electric Slag Cleaning Furnace - Metso
With Metso's Outotec Electric Slag Cleaning Furnace, the cleaning of smelting furnace slag is carried out using surface coke reduction in an electric furnace. The circular or rectangular electric furnace is operated in batches and equipped with three or more Söderberg electrodes.
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The Submerged Arc Furnace (SAF): State-of-the-Art Metal
2018/1/11 In this work, it has been investigated if the electric arc furnace is a viable alternative for the treatment of lead slags. ... Taking the example of conventional plant utilizing submerged arc furnace for copper slag cleaning and taking the current copper price of approximately 5000 USD per ton of copper and a copper production of
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Rectangular furnace design and revolutionary DC-slag
2004: Rectangular copper slag cleaning furnace 2004: High capacity FeNi rectangular SAF with thyristor + copper cooling system 2006: DC slag cleaning unit for precious metals (PGM, Cu, Co, etc.) Figure 1 shows a typical submerged arc furnace from the 1950s, as it was promoted at that time. It should be pointed
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Process SpringerLink
2023/6/14 Copper matte and slag continuously flow through a chute to the electric slag cleaning furnace for separation by precipitation; the copper matte, at a grade of around 70%, flows continuously through a chute into the converting furnace for converting; the cleaned slag contains 0.6–0.8% copper and is discharged continuously for water
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A novel slag cleaning method to recover copper from molten copper
2023/8/1 To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were calculated first. Then, the effects of experimental parameters on the reduction of Fe 3 O 4, recovery of copper, and slag cleaning mechanism were investigated.The results showed that the
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Alternatives of Copper (I) Oxide Reduction in a Copper Slag Cleaning ...
2023/2/12 Hence, the recent trends of copper smelting invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. The reduction of Cu 2 O from slags is carried out by adding carbon/coke or by injection of various reductants (e.g., different types of oil or
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Alternatives of Copper (I) Oxide Reduction in a Copper Slag
and hydrogen for the reduction of copper (I) oxide in a slag cleaning furnace. We compared six different setups in terms of reductant injection into the liquid slag: two using tuyeres (Fig. 1a) and four using capillary plugs (Fig. 1b, c).
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Slag treatment solutions for non-ferrous metals - SMS group
SMS group has been working on optimizing the slag conditioning process for decades. The BlueSlag process follows a two-step principle, the ladle treatment station and the slag settling furnace, and was primarily developed for the treatment of copper and nickel slag. In the ladle treatment station, the slag is heated and purged/stirred with ...
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(PDF) Minimization of Copper Losses in Copper Smelting Slag
2012/11/1 Copper slags have been used as abrasives (polishing and cleaning) for metallic structures [30,31] and mainly in the building industry: concrete manufactured with copper slag [32]; copper slags as ...
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LATEST RESULTS OF THE INTENSIVE SLAG CLEANING
work, carried out for a Chilean copper producer. In 2010 the process principle will be demonstrated in an improved larger and ... Figure 2: Conventional AC-based slag cleaning furnace (example ...
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Alternatives of Copper (I) Oxide Reduction in a Copper Slag
and hydrogen for the reduction of copper (I) oxide in a slag cleaning furnace. We compared six different setups in terms of reductant injection into the liquid slag: two using tuyeres (Fig. 1a) and four using capillary plugs (Fig. 1b, c).
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Slag treatment solutions for non-ferrous metals - SMS
SMS group has been working on optimizing the slag conditioning process for decades. The BlueSlag process follows a two-step principle, the ladle treatment station and the slag settling furnace, and was primarily
获取价格(PDF) Minimization of Copper Losses in Copper
2012/11/1 Copper slags have been used as abrasives (polishing and cleaning) for metallic structures [30,31] and mainly in the building industry: concrete manufactured with copper slag [32]; copper slags as ...
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LATEST RESULTS OF THE INTENSIVE SLAG CLEANING
work, carried out for a Chilean copper producer. In 2010 the process principle will be demonstrated in an improved larger and ... Figure 2: Conventional AC-based slag cleaning furnace (example ...
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Development of Electric Furnace Slag Cleaning at a Secondary Copper
The use of an electric arc furnace for recovery of metal values from slag generated in a secondary copper smelter has been successfully demonstrated and commercialized. Blast furnace slag containing about 1.5% Cu, 1.0% Pb, 3.5% Zn, 1.0% Ni, 40% FeO and 1.0 opt Ag was retreated to recover better than 75% of the metal values. The addition of
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[PDF] Minimization of Copper Losses in Copper Smelting Slag
2012/9/21 In the quest to achieve the highest metal recovery during the smelting of copper concentrates, this study has evaluated the minimum level of soluble copper in iron-silicate slags. The experimental work was performed under slag-cleaning conditions for different levels of Fe in the matte and for a range of Fe/SiO2 ratios in the slag. All
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INNOVATIVE TECHNOLOGIES FOR COPPER SMELTING AND ELECTRIC SLAG CLEANING ...
2019/9/2 The smelting and converting El Teniente process for copper concentrates as well as slag cleaning furnace technologies to treat slags coming out from the El Teniente furnaces are widely applied ...
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Comparison of environmental performance of modern copper
2021/12/1 This fraction is significant because it affects heavily on the copper recovery during the slag cleaning phase. Basically, the fraction of oxide copper is dependent on the amount of sulfur present, which was kept fixed at 0.9%. The higher the oxidation degree and thus the copper content in slag, the higher the oxidized copper
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Modelling of copper (I) oxide reduction in a copper slag
to copper loss to the slag predominantly in the form of copper (I) oxide [Reddy et al. 2003]. Hence, the recent trends of copper smelting invariably lead to significant
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Development of Electric Furnace Slag Cleaning at a Secondary Copper
2013/12/20 The use of an electric arc furnace for recovery of metal values from slag generated in a secondary copper smelter has been successfully demonstrated and commercialized. Blast furnace slag containing about 1.5% Cu, 1.0% Pb, 3.5% Zn, 1.0% Ni, 40% FeO and 1.0 opt Ag was retreated to recover better than 75% of the metal values.
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Development of Electric Furnace Slag Cleaning at a Secondary Copper
2013/3/1 The effect of iron phase evolution on the copper content in slag during the slag cleaning process in an electric furnace was investigated using the method of combining theory with experiments.
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(PDF) Water-cooled Tap-hole Blocks - ResearchGate
2014/1/1 The Furnace Tapping Conference series is an example of problem-based conferencing. It focusses on tasks all smelters have in common, namely the tapping of liquid slag and alloy or matte from the ...
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Analysis of copper loss in slag in Tamano type flash smelting furnace
2006/1/1 Pyrometallurgical production of molten copper generates two slags, smelting and converting. Smelting furnace slag typically contains 1%–2% Cu.
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Improved Settling Mechanisms of an Industrial Copper Smelting Slag
2023/8/28 A significant source of copper losses from pyrometallurgical copper extraction is attributed to dissolved and entrained copper in discarded slag. Entrained copper can be recovered via pyrometallurgical slag cleaning in a settling furnace, where the slag viscosity and copper droplet size distribution (CDSD) are critical parameters.
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