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Secondary copper recovery is attracting increasing interest because of the growth of copper containing waste including e-waste. The pyrometallurgical treatment in …
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Section 12.9 Secondary Copper Smelting, Refining, and Alloying . Including the introduction (Chapter 1), this report contains four chapters. Chapter 2 gives a description of the secondary copper industry. It includes a characterization of the industry, an …
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A total of 35 surface soil samples around two secondary copper smelters and one secondary aluminum smelter were collected and analyzed for 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs). The concentrations of PAHs were highest when the soil sample sites were closest to the secondary copper smelters. And, a level …
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The principal pollutant emitted from secondary copper smelting activities is particulate matter. As is characteristic of secondary metallurgical industries, pyrometallurgical processes used to separate ... Fabric filter baghouses are the most effective control technology applied to secondary copper smelters. The control efficiency of these ...
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Dioxins are generated in secondary copper smelters on fly ash as their major source, resulting in highly contaminated residues. In order to assess the toxicity of this waste, an analysis of dioxin-like compounds was carried out. High levels were detected (79,090 ng TEQ kg−1) in the ash, above the Basel Convention low POPs content …
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Fojtik tells the publication the plant will be designed to produce copper cathode from lower grades of copper-bearing scrap such as those produced in the auto and electronics shredding process. Cohen operates about a dozen facilities in Ohio and Kentucky, including one auto shredder in West Carrollton, Ohio. The company increased …
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Ecc = Filterable particulate emission limit for the existing batch copper converter secondary capture system as specified in § 63.1444(d)(6) (mg/dscm); Qcc = Batch copper converter capture system exhaust gas stream volumetric flow rate before being combined with other gas streams (dscm/hr);
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Two typical secondary copper smelters (A and B) located in a coastal city (YT) and an inland city (LY) in Shandong Province, China, were selected for this study (Fig. 1). Both smelters are bordered by railways and several highways. Smelter A uses reverberator furnaces, which are widely used in China for secondary copper smelting, …
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This study investigated the occurrences of all 75 PCN congeners in agricultural areas near secondary copper smelters in China. The PCN concentrations in aquatic foods, eggs, crops, sediments and soils within 10 km of these smelters were higher than those in samples collected 20-30 km away from such facilities. In contrast, the PCN ...
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Depending on the individual given conditions of smelters, the slag is dumped (solid or in tailing ponds) or sold as a product. ... In this study slag from secondary copper smelting is characterized with transmission electron microscopy in nano-scale. Crystalline spinel phases, amorphous slag matrix and areas enriched in Cu that can be ...
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A total of 25 stack gas samples were collected from secondary copper smelters (SCus), secondary zinc smelters, and secondary lead smelters in China. The mean toxic equivalent concentrations (TEQs ...
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In a major benefit for domestic smelters like Hindalco and Sterlite Industries, secondary copper producers have decided to use primary metal instead of scrap as raw material due to narrowing gap between the two competing raw materials on falling copper prices.Copper prices have declined over 11 per cent this month to hit five-and-a-half …
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The rule requires the owner or operator of a new secondary copper smelter to operate a capture and control system for particulate matter (PM) emissions from any …
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Secondary copper smelting process are one of the metallurgical processes with highest emissions of PCDD/Fs and sites have caused extensive contamination in …
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A novel and clean process was developed to convert flue dusts of secondary copper smelters into value-added products. The process consists of three main steps: NaOH leaching, two-stage combined ...
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Circular economy for copper. The plant will produce up to 50,000 tons of copper anodes annually. The plant start-up is scheduled for 2021. SMS group is supplying a secondary …
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1.. Introduction'Releases from primary and secondary copper smelters and copper refineries' and 'releases from primary and secondary zinc smelters and zinc refineries' are two entries that were included on the second Priority Substances List (PSL) under the Canadian Environmental Protection Act (CEPA) (EC/HC, 1995).For …
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As such, secondary copper smelters must be flexible and sufficiently versatile to adapt their operating conditions so as to account for variability in feed morphology and composition. This is ...
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Secondary copper recovery is attracting increasing interest because of the growth of copper containing waste including e-waste. The pyrometallurgical treatment in smelters is widely utilized, but ...
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Sixteen samples of atmospheric particles in four size fractions (diameter: > 10 μm, 5-10 μm, 2.5-5 μm, and <2.5 μm) were collected around two secondary copper smelters in Shandong Province, China. The levels, particle size distributions, and potential health risks of polychlorinated dibenzo-p- …
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Yang et al. (2020) collected 25 stack gas samples from three secondary copper smelters, two secondary zinc smelters, and two secondary lead smelters, and found that the PCDD/F levels emitted from the secondary copper smelters were up to 2.7 ng I-TEQ Nm−3, and were much higher than those from the other secondary metal …
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The smelter will consume 54,000 tons of scrap annually to produce 50,000 tons of 99.7% copper custom anodes. U.S. wire and cable manufacturers are key …
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This secondary copper can be refined into relatively pure metallic copper, alloyed with zinc or tin to form brass or bronze, incorporated into chemical products, or used in a number …
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Germany-based metals equipment and technology provider SMS Group says it will supply a secondary copper smelter to Ames Copper Group for its planned facility in Shelby, North Carolina. Ames is a joint venture between Connecticut-based wire processor and nonferrous recycler Prime Materials Recovery Inc. and Spain-based Cunext Group.
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Yin et al. (2009) reported that the Hg content in soils close to secondary copper smelters in China ranged from 317 to 515 g/ha. Hg-contaminated soils can pose threats to surface water (Grigal ...
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Secondary copper smelting is an important source of heavy metal emission. Flue gas samples were collected from different stages in secondary copper smelters to study the emission characteristics and control of particulate matters (PM) and heavy metals such as Cd, Cr, As, Pb, Sn, and Sb. The mass con …
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DOI: 10.1016/j.envpol.2009.02.018 Corpus ID: 24586003; Mercury contamination in vicinity of secondary copper smelters in Fuyang, Zhejiang Province, China: levels and contamination in topsoils.
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The generation of and extent to which chlorinated and brominated polycyclic aromatic hydrocarbons (Cl/Br-PAHs) are formed and released from secondary copper smelters remain unknown. This field study, to our knowledge, is the first to identify secondary copper smelters as new sources of Cl/Br-PAHs. Mass concentrations of …
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However, this rule contains requirements for new area sources of secondary copper smelters, which are any such source that begins operations after January 23, 2007. The rule requires the owner or operator of a new secondary copper smelter to operate a capture and control system for particulate matter (PM) emissions from any …
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