— Slag by Flotation Process Jiaqi Fan Hongxu Li Liangtian Wei Chao Li and Shi Sun So far many studies have been carried out on the recovery of copper from slag in which the methods used are leaching flotation direct reduction and bio leaching [3 6] Among those methods flotation procedure a method for mineral separation
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— Copper slag which is produced during pyrometallurgical production of copper from copper ores contains materials like iron alumina calcium oxide silica etc
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— The two stage method for recovering metals from copper slag is highly efficient and provides valuable insights into resource utilization of metals and Si in silicon containing solid wastes Graphical abstract Download A novel process to upgrade the copper slag by direct reduction magnetic separation with the addition of Na2CO3 and
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— In pursuit of carbon neutrality the demand for metals that are necessary for the development of clean energy technologies is rapidly increasing Metallurgical waste such as slag presents a promising secondary source of these key metals This research aims to develop an eco friendly hydrometallurgical process to recover Cu Ni and Co
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— Hence the bulk chemistry of the slag can be an important consideration in selecting the processing method of copper slag Table 1 shows a summary of the average chemical composition of copper smelter slags obtained from over 80 studies covering 21 countries The average chemical composition of copper slag was calculated by
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— Fig 1 XRD pattern of copper slag Fig 2 SEM∠EDS analysis of copper slag Methods In the experimental process 200 g of copper smelting slag and a certain proportion of composite additives pyrite and coke were thoroughly mixed in an agate mortar and then placed into a corundum Qing hua TIAN et al/Trans Nonferrous Met
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— Deposited copper slag originated from a region Mansfeld Saxony Anhalt Germany was characterized from mineralogical chemical and structural point of view for purpose of its sustained processing and removal Subsequently hydrometallurgical processing of copper slag was investigated because of extraction of metals as Zn Cu Ni
— Chromite ore processing residue COPR and copper slag CS are industrial waste slags that cause environmental pollution and require effective treatment The dry method typically uses coal Hu et al 2021 biomass cellulose Sun et al 2020 straw Zhang et al 2009 and sucrose Wang et al 2007 to reduce Cr VI in COPR at
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— A technological scheme for copper slag processing is proposed It comprises 5 stages namely i air oxidation of the copper slag at a temperature above 800 °C for 2 h; ii hydrothermal treatment of the oxidized slag with sodium hydroxide solution 140 g/l at 190 °C for 3 h; iii separation of the solid from the liquid phase by hot filtration;
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— produced t copper smelting slag − [5 6] Although the composition of copper smelting slag produced by different smelting methods the varies principal phases are essentially fayalite Fe 2SiO 4 and magnetite Fe 3O 4 [7 8] Copper slag contains valuable metals such as %−% Cu %−% Pb and %−% Zn which have
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Copper telluride slag is a ubiquitous intermediate by product produced in the comprehensive recovery of tellurium from copper anode slime Existing tellurium recovery/treatment processes consist of oxidizing leaching precipitation alkaline leaching and electrolysis which suffer from excessive consumption and generate high amounts of toxic hazardous
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— Previously investigation was done on the recovery process of iron zinc and copper from the copper smelter slag of Balkhash copper plant Kazakhstan by ammonium chloride treatment However the formation of toxic ammonia in the technological process by the proposed method produces increased demands on leak proof equipments
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— 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 Nickel slag recycling is important and metals can be recovered from slag by flotation However considering the complex forms in which
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The predigestion life cycle assessment LCA method has been applied to investigate the environmental impact of the recycle copper process from copper slag Related environmental load data of each process stage have been obtained Copper slag recycle copper process includes crushing milling flotation dehydration Environmental impact
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— With the shortage of high quality raw materials and increasingly strict environmental regulations the recovery of metals from copper slag and pyrolusite has become a research hotspot A novel method for simultaneously extracting Mn and Fe from pyrolusite and copper slag has been proposed Under the optimal conditions Copper
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— Producing high value added materials such as glass ceramics is an effective way to realize the resource utilization of copper slag Yang et al [[13] [14] [15]] used copper slag to recover iron and successfully synthesized glass ceramics with main phases of anorthoclase and diopside using iron extraction also found that
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— Conventionally little chemical adjustments are made to the slag prior to its processing for subsequent use or disposal However recent attempts have looked into modifying the chemical composition of slag while hot to render its chemistry and properties suitable for high value products or recovery of minerals/metals from slag [11
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— An efficient process based on chlorination roasting with CaCl 2 was proposed to recover zinc from copper smelting slag The reaction mechanism and the kinetics of the chlorination process were investigated by thermodynamic calculation thermogravimetry and differential scanning calorimetry TG−DSC analysis and X ray
— 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
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PDF On Nov 26 2023 Lanbin Wang and others published Two stage method recovery of metals from copper slag Realize the resource utilization of all components Find read and cite all the
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