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anode electrolytic recovery of copper
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MIT Open Access Articles Electrolytic production …
then to liquid copper metal upon conversion. After fire refining, copper is cast to anodes and aqueous electrorefining is used to recover these valuable elements. While largely …
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One-step separation and recovery of copper and sulfur by …
The crystalline structure of the anode product is identified as S 12 and S 6. When Cu 2 S is introduced into Reline, it dissolves ... achieving one-step separation and recovery of copper and sulfur has always posed a challenge in copper metallurgy. Deep eutectic solvents (DESs) have emerged as environmentally
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An investigation of copper and selenium recovery from copper anode …
An alternative method to recover copper and selenium from anode slime was designed. • The critical process parameters were investigated and optimized. • 2 L/min flow rate of oxygen was enough to achieve the maximum dissolution rates. • The maximum recovery of copper and selenium was found as 94% and 86%, respectively. •
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Recovery of Silver and Gold from Copper Anode …
Copper anode slimes, produced from copper electrolytic refining, are important industrial by-products containing several valuable metals, particularly silver and gold. This article provides a …
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Copper Electrolytic Refining Process Explained
In order to simplify the operation, a weaker copper feed solution was made for No. 1 Step by adding 1,170 c. c. water to 1,872 c. c. of 6.0 percent, copper solution, producing 3,042 c. c. of feed solution containing 3.7 …
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Comprehensive recoveries of selenium, copper, gold
Therefore, valorization of the electrolytic sludge was achieved by copper recovery as CuSO4∙5H2O using evaporative crystallization; this process was an effective way for both recovering Cu and ...
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Copper and Antimony Recovery from Electronic Waste by
An electrolytic grade copper cylinder of 3.8 cm diameter and 10 cm length was the cathode, whereas a graphite hollow cylinder with an inner diameter of 8 and 10 cm length was the anode. ... Navarro L. Electrolytic recovery of bismuth and copper as a powder from acidic sulfate effluents using an emew cell. RSC Adv. 2015, 5, …
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Elevating Your Copper Foil Production with Titanium Anodes
The copper foil production industry is experiencing a transformative shift, adopting Titanium anodes for superior electrodeposition capabilities. These Titanium anodes, known for their durability and outstanding conductivity, ensure a consistent and high-quality copper deposition process. Their role in achieving uniform thickness and elevated ...
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(PDF) Development of an Electrolytic Process for
Electrolytic extraction showed that the mean weight of copper deposited at 1 Mol acid extraction (683.3 ± 2.6 mg) was significantly higher than that deposited at 3 mol concentration of ...
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Recovery of scattered and precious metals from copper anode …
This paper presents a review of chemical composition data of the main stages of copper production from sulfide minerals, such as (1) copper minerals, (2) flotation tailings, (3) flotation ...
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Electrolytic recovery of copper and regeneration of nitric …
@article{osti_6245074, title = {Electrolytic recovery of copper and regeneration of nitric acid from a copper strip solution}, author = {Stewart, T L and Hartley, J N}, abstractNote = {The fabrication of nuclear fuels involves stripping of a copper jacket with nitric acid. The waste acid, which contains 3.0 to 4.5 N nitric acid and 100 to 180 g/L copper, is currently …
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Effects of Acid Pretreatment on Purity of Copper Foil
Subsequently, under the electrolytic conditions of the concentration of CuSO 4 of 60 g/L, the concentration of H 2 SO 4 of 122.5 g/L, and the current density of 40 mA/cm 2, the electrolysis duration of 1440 min, the purity of the copper obtained from copper granules with the acid pretreatment is 99.73%, which is much higher than that obtained ...
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Recovery of copper from WPCBs using slurry electrolysis with ionic
Chu et al. (2015) reported that copper powders with a purity of 98.06% can be directly recycled from WPCBs metal concentrated scraps by electrolysis using pressed tiles of WPCBs powders as the anode. Sun et al. (2016) showed that copper could also be selectively recovered by electrochemical method with different ammonium salt solutions, …
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Separation and recovery of copper in Cu−As-bearing copper
Although smelting, converting and refining greatly reduce the content of impurities, a small quantity of impurities still remain in the copper anodes. During the electrolytic refining of copper, the impurity elements such as As, Sb and Bi gradually dissolve and concentrate in the electrolyte [3âˆ'5].
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Copper Electrorefining Technology
anode handling machines, electrolytic cells, busbars, and electrodes. Our electrolyte circulation and filtration process is ... • Proven technology used by copper refineries around the ... Anode scrap washing machine • Excellent slime recovery • Fully automated and safe operation • Closed washing water circulation and clean, slime-free ...
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Application of cationic membrane electrolysis on the …
Under the optimal parameters: the pH of 13.0 and ionic strength of 0.25 in anode compartment, electrode distance of 3.0 cm, cell voltage of 2.4 V, and temperature of 50 °C, copper recovery efficiency of 99% and energy consumption of 1.58 W h/g Cu …
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Metal Recovery Processes | SpringerLink
Electrowinning is the electrolytic process of "winning" or recovering dissolved metal using an applied potential. An example of an electrowon copper plate is shown in Fig. 7.1. This process is practiced extensively in the metals industry. Copper, zinc, and gold, as well as other metals are produced by this process.
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An environmental-friendly process for recovery of tellurium and copper
At present, anode slimes from electrolytic copper refineries are the primary source of tellurium, which is the main source of the world tellurium supply. Copper anode slimes usually consists of copper, selenium, nickel, tellurium, silver, gold, and trace amount of platinum group metals, with the Te content typically being about 1–4 wt%, and ...
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Recovery of scattered and precious metals from copper anode …
CAS, a by-product of the electrolytic refining of Cu (including primary copper and regenerated copper), is a mixture of various substances that are poorly soluble in the electrolyte during the electrolytic refining of copper anodes (Fahidy, 2006; Gu et al., 1995; Petkova, 1997).
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Recovery of copper and tin from stripping tin solution by
It is owing to the anode material and electrical conductivity. The recovery rates of copper are all about 100 %, but the recovery rate of tin increases from 60.12 % to 80.62 % by graphite anode used. In the process of electrodepositing tin, 316 stainless steel anode is dissolved seriously, and the rate of weight loss reaches 8.14 %.
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One-step separation and recovery of copper and …
Deep eutectic solvents (DESs) have emerged as environmentally friendly electrolytes for the separation and recycling of metals and their compounds. This study …
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Copper recovery from sludges generated in the
This research was supported by the Atlantic Copper company project "Copper recovery and arsenic removal from electrolytic sludge generated in the electrolytic treatment plant" (Ref.: PID2020-11646RB-C21), and the project of the Regional Government of Andalusia entitled Basic processes regulating the fractionations and …
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Co-treatment of spent carbon anode and copper slag for …
However, the recovery of copper slag by direct flotation is not ideal due to the small particle sizes of copper matte, long slow cooling time and low productivity ... Preparation of anode materials for lithium-ion batteries by spent carbon anode from electrolytic aluminum. J. Environ. Chem. Eng., 9 (2021), Article 105932, …
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Eco-friendly and efficient extraction of valuable elements from copper …
1. Introduction. Copper anode mud is an important industrial by-product generated at the bottom of an electro-refining tank during copper electrolytic refining, which makes up 0.2%−0.8% of anode copper (Hait et al., 2002).It is regarded as a hazardous solid waste because of the enrichment of toxic and harmful components.
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Electrolytic Refining
Electrolytic refining is a process of refining a metal (mainly copper) by the process of electrolysis. As far as the mechanism of the process is concerned, during electrolysis, a large chunk or slab of impure metal is used as the anode, with a thin strip of pure metal as the cathode. In this setup, an electrolyte (metal salt aqueous solution ...
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The Extraction of Copper
Electrolytic Refining. The purification uses an electrolyte of copper(II) sulfate solution, impure copper anodes, and strips of high purity copper for the cathodes. …
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Electrolytic recovery of dilute copper from a mixed …
While in 3D stainless steel turning cathode reactor, 99.5% of copper can efficiently be recovered from dilute solution with an acceptable current efficiency of about 56.8% with minimum energy consumption of 2.37 kWh/kg of Cu. The experimental results suggested that the efficiency of copper removal is hindered by the presence of organic …
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Recovery of Carbon and Cryolite from Spent Carbon Anode …
The aluminum electrolysis industry continually and unavoidably produces hazardous solid waste in the form of carbon anode slag. Carbon anode slag poses a serious environmental pollution risk, and it must be disposed of in a harmless manner. On the other hand, it contains a few valuable resources, as well. In order for the aluminum …
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Metal Recovery Processes | SpringerLink
An inert anode is used to complete the circuit and the necessary counter reaction to metal recovery. Metal is recovered at the cathode. Ions or molecules are …
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An environmentally friendly process to selectively recover …
1. Introduction. Copper anode slime is the byproduct of electro-refining of copper, which often contains precious metals and is a valuable secondary resource for recovering valuable products, such as silver, from it (Ding et al., 2017, Wang et al., 2017, Yldrm et al., 2014).The predominant method for silver recovery from anode slime is …
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Electrolytic recovery of zinc from zinc ash using a …
The attempt at electrolytic recovery of zinc from the zinc ash-domestic sewage mixture using copper electrodes failed to yield metallic zinc after 1.5h of electrolysis time but reduced the total pollution load of the …
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Recovery of Silver and Gold from Copper Anode Slimes
Copper anode slimes are a byproduct of electrolytic copper refineries which usually contains many valuable elements such as Au, Ag, PGMs (platinum-group metals), Cu, Se, Pb, As and Sb.
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Selective Volatilization and Recovery of Valuable Metals by …
Copper anode slime produced by electrorefining copper has a high recovery value due to the valuable metals and platinum group metals present. Neither traditional cupellation processes nor hydrometallurgical leaching processes can solve the problem of arsenic enrichment in the system. According to thermodynamic analysis, …
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Processing of copper electrorefining anode slime: a review
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 …
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Copper Metallurgy | SpringerLink
In the electrolytic refining process, the anodes and cathodes are, individually, the copper anodes produced in pyro-refining and 316 L stainless steel sheet or copper starting sheet, and the electrolyte (58–62 °C) is an aqueous solution of sulfuric acid (150–200 g/L) and copper sulfate (copper content 40–50 g/L).