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Abstract Copper anode slimes, the by-product of the copper electrorefining process, have been the subject of extensive investigation for recovering precious metals viz., Au, Ag, Pt and Pd, in addition to being the main source of rare/energy-critical elements such as Se and Te. There have been various approaches aiming at the development of …
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Copper anode slime is a by-product of copper cathode production, and it is well-known as a source of precious metals (e.g. Gold, Silver, Palladium, Platinum ... Selective separation and recovery of valuable metals by vacuum distillation of copper anode slime flotation tailings. JOM, 71 (2019), pp. 2413-2419. CrossRef View in Scopus …
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The combination of flotation and metallurgical processing to treat copper anode slime produces approximately 1400 tons of flotation tailings every year in …
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Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. It generally contains Cu, Ni, Se, Te, Ag, Au, platinum group metals (PGM ...
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Copper sulphides Concentrates, from the flotation process of copper primary ore; contain, commonly, small amounts of precious metals, such as gold and silver. During the smelting process of those concentrate all gold and silver are practically in the blister copper, which is cast into anodes. Those copper anodes are electrorefined in an electrolytic system, …
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The combination of flotation and metallurgical processing to treat copper anode slime produces approximately 1400 tons of flotation tailings every year in Selective Separation and Recovery of Valuable Metals by Vacuum Distillation of Copper Anode Slime Flotation Tailings | SpringerLink
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Slime usually cause severe effects in flotation and even leaching (Gupta, 2003, Habashi, 1997, Habashi, 1999. On the other hand, high amounts of precious and …
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Copper electrorefining mainly produce LME Cu-CATH-1 copper cathode and byproduct anode slime from copper anode. Metalcess develops mini scale copper ER from 1T/d copper electrorefining system with modular design/easy installation, saving installation instruction cost and optimizing your return on investment.
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The combined process of beneficiationand smelting to treat copper anode slime mainly firstadopts the flotationprocess, which was used to improve the grade of the concentrate.
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A stibnite concentrate is first produced by grinding, milling, flotation, and gravity concentration . These steps are usually carried out close to the mining site, and result in Sb-containing mine tailings. ... Lin D, Qiu K (2011) Removal of arsenic and antimony from anode slime by vacuum dynamic flash reduction. Environ Sci Technol …
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By comparison, it was found that the content of Cu in decopper anode slime was significantly lower than that in primary CAS, whereas the contents of precious metals were higher. Download : Download high-res image (141KB) Download : Download full-size image; Fig. 2. A typical production process of copper anode slime (Bard and Sobral, 2008).
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Flotation tailings of copper-anode slime is a high value-added waste. A new, clean and highly efficient vacuum distillation process is presented for the separation of valuable metals that remain ...
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Spent carbon anode (SCA) is a dangerous solid waste that is continuously discharged from the aluminum electrolysis industry and has a large number of valuable resources and a high risk of environmental pollution. Its safe disposal and resource utilization have become a resource and environmental problem that must be solved …
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The copper anode slime leaching experiments were conducted in 250 mL round-bottom flasks. The reaction solution was prepared according to a certain ratio of H 2 SO 4, HCl and NaCl, and the copper anode slime is added to the reaction solution according to a certain liquid–solid ratio. The temperature was set and controlled by a …
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Copper anode slime (CAS) is an important component of secondary resources, and it contains a large amount of SPMs. Because of the complicated occurrence state of SPMs, the technique of extracting and separating them from CAS is quite different from that of raw ore. ... Therefore, pretreatment methods including magnetic separation, …
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Figure 1 shows the complex morphology of high-Pb copper anode slime particles with smooth surfaces and round edges (many of them have a spherical shape).3 A small quantity of Pb-As-Sb-O species in the anode slimes, whose morphology was similar to that of the Sb-As-O phase, was detected. The main phases of copper anode slimes …
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Abstract The response surface methodology (RSM) was employed to study the interactions among different factors (i.e. temperature, liquid to solid ratio, HCl concentration and chlorine gas flowrate) involved in the leaching of Au from copper anode slimes. The interactions such as liquid to solid ratio, chlorine gas flowrate×temperature and HCl …
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The feasibility of separation of lead anode slime with low silver by vacuum distillation was analyzed theoretically. The volatilization rates and mass fractions of elements, influenced by distillation temperature, heat preservation time and material thickness, were investigated under laboratory conditions. The experimental results …
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(Crushing, Grinding and Flotation) Figure 1-Anode slime generation from the primary ore. The main objective of this work was to evaluate and identify what are the best experimental conditions for extracting gold, silver and copper of anode slime generated during the copper electrorefining through oxidative hydrometallurgical processes.
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Anode slime recycling has greater negative impacts on environment than the other two processes. ... After flotation, the slag concentrates with a copper grade greater than 20% are returned to the smelting process, while the remaining slag tailings with a copper grade of less than 0.25% are sold. Every input of 1000 kg of smelting slag …
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Process for the flotation of anode slime from copper electrolysis comprising subjecting the anode slime, as a preliminary treatment, to attrition treatment in combination with a copper leaching treatment in a medium of an acid solution. The floated material obtained from the flotation is continuously subjected to three processes of roasting, melting and …
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Abstract. Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. It generally contains Cu, Ni, Se, Te, Ag, Au, platinum group metals (PGM), Pb, Ba, Fe, etc. Owing to the presence of valuable metals and metalloids in the anode slime, numerous approaches have been made by the …
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Selective Separation and Recovery of Valuable Metals by Vacuum Distillation of Copper Anode Slime Flotation Tailings. ... 2019; The combination of flotation and metallurgical processing to treat copper anode slime produces approximately 1400 tons of flotation tailings every year in Yunnan Province. These tailings contain a … Expand. 27. …
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Copper anode slime is the contamination of a copper anode rich in precious metals like gold, silver, and platinum group metals, and critical elements such as …
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Copper anode slime produced by electrorefining copper has a high recovery value due to the valuable metals and platinum group metals present. Neither …
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Then flotation will separate the copper sulfide concentrate. Its main components are copper, iron, and sulfur. The sum of the content of the three components accounts for approximately 85%. The copper content grade is around 25%. ... the precious metals in the anode cannot be dissolved and therefore generate anode slime together …
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The optimum flotation parameters were 7 min of grinding time, 200 g/t of emulsified kerosene, 400 g/t of sodium isoamyl xanthate, and 400 g/t of Na2S. ... Recovery of antimony and bismuth from tin anode slime after soda roasting–alkaline leaching. Separation and Purification Technology 2020, 242, 116789.
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The combination of flotation and metallurgical processing to treat copper anode slime produces approximately 1400 tons of flotation tailings every year in Yunnan Province. These tailings contain a ...
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Copper Anode Slime. Anode slime is a byproduct of copper or lead electro-refining process and found in electrolytic cell bottom or on the anode scrap surface. The copper anode slime and lead anode slime usually contain precious metals like gold and silver. Depending on the treatment capacity, process of anode slime recovery is achieved by …
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Flotation performance of collectors. The flotation performances of EICTU, BX and IPETC collectors for Gacun polymetallic ore were compared. The flow sheet of flotation test is shown in Fig. 3, and the obtained results are listed in Table 4. The copper recoveries were separately 88.73%, 94.25% and 95.38% for IPETC, BX and EICTU.
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