SECONDARY COPPER PROCESSING USING OUTOTEC …
control of process operating conditions during secondary copper smelting is required for the separation of impurities and desired metal values between the various product streams. Secondary Copper ...
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Recovering metals from flue dust produced in secondary copper smelting
The FDSC used in the experiments was collected from the smelting process from a secondary copper smelter in Jiangxi, China, which utilizes electroplating sludge, copper scrap, and waste circuit boards as the feedstock. ... Selective leaching of arsenic and valuable metals in copper smelting soot strengthened by ball milling pretreatment (in ...
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Behavior of Tin and Antimony in Secondary Copper …
in secondary (i.e., sulfur-free) copper smelting conditions. The experiments were conducted in oxygen partial pressure range of 10 10–10 5 atm, covering the different process steps in copper smelting. The basis of the equilibrium system was metallic copper–iron silicate slag, with the
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BACKGROUND REPORT SECONDARY COPPER …
pretreatment methods include flotation and leaching to recover copper from slag. Flotation is typically used when slag contains greater than ten percent copper.
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Modelling copper smelting – the flash smelting plant, process …
The effectivity of present copper smelting technologies have their roots in industrial and laboratory-scale experience accumulated over the past decades. ... Ge, In and Sn from waste electric and electronic equipment through secondary copper smelting. Waste Manage. 71(1):400–410 ... Wang L, Yang C. 2007. Intelligent prediction model of matte ...
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Draft Guidelines on
"Secondary copper recovery is divided into 4 separate operations: scrap pre-treatment, smelting, alloying, and casting. Pre-treatment includes the cleaning and consolidation of scrap in …
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Secondary copper processing using Outotec Ausmelt TSL …
Flue dust from secondary copper smelting (FDSC) is a hazardous waste as well as a secondary resource due to the high content of Cl, Br, and valuable metals (Pb, Cu, Zn, Cd).
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Ausmelt TSL Process
The Ausmelt TSL Process offers an integrated solution for copper smelting and converting or it can be coupled with existing site processes. The Ausmelt TSL Furnace can process copper concentrates with a wide range of copper contents and high impurities contents. For copper smelting the Ausmelt TSL Process has been installed in relatively small
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Copper Smelting
The smelting process can be divided into three stages, namely decomposition of high-valence sulphide, oxidation of sulphide, and matte smelting and slagging reaction (Fig. 1).The efficiency of matte smelting and matte-slag separation, as well as the extent of copper losses to slag are mainly affected by the oxidation/reduction potential, matte grade, smelting temperature, slag …
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10 | SECONDARY SMELTING Refractory solutions for …
profitability of secondary copper refining furnaces. The global depletion of easily accessible primary copper reserves (from mined oxide/ sulphide concentrates) has led to secondary …
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5 Copper Processing
Secondary copper processing involves two steps: metal pretreatment and smelting. Pretreatment includes cleaning and concentrating the copper. Concentrating is done manually or …
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Copper Smelting Slideshow
Copper concentrate (CuFeS 2) is fed into the furnace along with a flux of silica sand, SiO 2, and oxygen, O 2. The flux is used to control the chemistry of the slag. In particular, it causes the iron (Fe) in the copper concentrate to accumulate in the slag phase, while the copper (Cu), accumulates in the matte phase. Copper Concentrate
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Variations of PCDD/Fs emissions from secondary nonferrous smelting …
Besides, Nie et al., (2011) studied the effects of different raw materials, pretreatment technology and production scale on PCDD/Fs emissions in the process of secondary copper smelting, indicating that the pretreatment of raw materials can effectively reduce PCDD/Fs emissions in the process of reclaimed copper smelting (Nie et al., 2011).
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Quantitative characterization of secondary copper flue dust …
The alkali pretreatment–reduction smelting process is one of the methods used to treat secondary copper flue dust (Wu et al., 2014, Karimov and Naboichenko, 2016, Guo et al., …
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BACKGROUND REPORT SECONDARY COPPER …
2.2 Process Description Secondary copper recovery is divided into four separate operations: scrap pretreatment, smelting, alloying, and casting. Pretreatment includes the cleaning and consolidation of scrap in preparation for smelting. Smelting consists of heating and treating the scrap for separation and purification of specific metals.
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Recovering metals from flue dust produced in secondary copper smelting
Flue dust from secondary copper smelting (FDSC) is a hazardous waste as well as a secondary resource due to the high content of Cl, Br, and valuable metals (Pb, Cu, Zn, Cd).
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Behavior of Tin and Antimony in Secondary Copper
This article investigates the behavior of tin and antimony, both commonly present as trace elements in electrical and electronic waste, in secondary (i.e., sulfur-free) copper smelting conditions. The experiments were conducted in oxygen partial pressure range of 10−10–10−5 atm, covering the different process steps in copper smelting.
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SECONDARY COPPER PROCESSING USING OUTOTEC …
In the last 15 years however, there has been a shift towards secondary copper processing using bath smelting technologies such as the Top Submerged Lance (TSL) and the Top-Blown …
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The Secondary Copper Project
The secondary copper project, namely the "UPOPs Reduction through BAT/BEP and PPP-based Industry Chain Management in Secondary Copper Production Sector in China" project, was carried out in partnership with the Ministry of Ecology and Environment, Foreign Environmental Cooperation Centre (FECO/MEE), Jiangxi EPB, in close collaboration with ...
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The Impurity Removal Technology For …
The production process of secondary aluminum alloy can be divided into three stages: pretreatment, smelting (including refining), and ingot casting. The smelting process is to add scrap aluminum into the smelting furnace and heat …
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Standard Conditions for Copper Smelting Industry
(IV) Copper smelting enterprises that utilize secondary copper-containing resources must adopt advanced energy-saving, environmentally-friendly, and clean production techniques and …
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AP-42, CH 12.9: Secondary Copper Smelting
IN SECONDARY COPPER SMELTING AND ALLOYING PROCESSa Furnace And Charge Type Control Equipment Total Particulate EMISSION FACTOR RATING PM-10b EMISSION FACTOR RATING Leadc EMISSION FACTOR RATING Cupola Scrap iron (SCC 3-04-002-13) Insulated copper wire (SCC 3-04-002-11) Scrap copper and brass (SCC 3-04-002-12) None None ESPd …
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SECONDARY COPPER PROCESSING USING OUTOTEC …
secondary copper materials into a form amenable to smelting. Consumer and e-waste materials usually undergo some form of manual, semi-automated or automated dismantling, mechanical pre-
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Microwave-absorbing characteristics of secondary copper smelting …
Copper (Cu) is widely used in the electrical, electronic, chemical, metalworking, and defense sectors [[1], [2], [3]], making it a vital component of modern life.Cu smelting enterprises have an ever-increasing demand for Cu ore raw materials to meet market demand [4].Secondary Cu recovery has increased due to basic mineral shortages [5].China produced nearly 30 % of …
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Carbothermic Smelting Reduction of Copper Slag for Fe and …
Copper is one of the most commonly used metals in the world (~ 26 million tonnes each year). 1 Over 85% of copper is produced by a pyrometallurgical process from copper ores or scrap. Copper slag, as a primary by-product, is also produced during the high-temperature smelting process. 2 The slag output is about 2 ~ 3 times that of the refined copper due to the …
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Microwave-absorbing characteristics of secondary copper smelting …
Investigating the microwave-absorbing characteristics of secondary copper smelting fly ash (SCFA), which is both a hazardous waste and valuable secondary resource, can be expected to expedite the efficient application of microwave heating technology in the comprehensive treatment of fly ash. Here, we have examined SCFA and its pure components, …
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Brominated dioxin and furan stack gas emissions during different stages
Secondary copper smelting processes (SeCu) have previously been identified as an important source of brominated dioxins and furans (PBDD/Fs). Identifying the major stages responsible for PBDD/F formation and emissions is crucial for developing technology to reduce PBDD/F emissions from SeCu, but nothing is currently known in this regard.
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Behavior of Tin and Antimony in Secondary Copper Smelting Process
This article investigates the behavior of tin and antimony, both commonly present as trace elements in electrical and electronic waste, in secondary (i.e., sulfur-free) copper smelting conditions.
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AP-42, CH 12.8: Secondary Aluminum Operations
12.8.2.2 Smelting/Refining - After scrap pretreatment, smelting and refining is performed. Smelting and refining in secondary aluminum recovery takes place primarily in reverberatory furnaces. These furnaces are brick-lined and constructed with a curved roof. The term reverberatory is used because heat rising 12.8-4 EMISSION FACTORS ...
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Behavior of Tin and Antimony in Secondary Copper Smelting Process …
This article investigates the behavior of tin and antimony, both commonly present as trace elements in electrical and electronic waste, in secondary (i.e., sulfur-free) copper smelting conditions. The experiments were conducted in oxygen partial pressure range of 10−10–10−5 atm, covering the different process steps in copper smelting.
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