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Copper anode casting can be done in two ways: mold casting and continuous casting–shearing, where the former one is used more extensively. Mold casting uses the disc casting machine (Fig. 1). After pyro-refining is finished, the acceptable anode copper melt flows through chute to enter the disc casting machine where it is made into copper …
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Alternatives for copper anode slime processing: A review ... Show abstract. Copper anode slime (CAS) is a valuable residue produced during the refining of metallic copper. Although it contains toxic elements such as As, Sb, and Cd, CAS is also a source of various valuable metals, including Au, Ag, platinum group metals, Se, Te, Sn, Cu, Ni, …
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The impure anodes usually have a purity of 98.5-99.5% copper. Industrial copper anodes are typically large, about 1m2, and thin (4-5cm). The mass of an anode is between 300 …
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The raw material of copper telluride (Cu 2 Te) precipitate from anode slime processing used in the present study was obtained from Tongling Nonferrous Metals Smelter in China. It was dried at 120 °C for 24 h and then ground into fine particles with an average size of below 300 μm for further leaching experiments and analysis.
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All the approaches mentioned above have been studied for decades and are still being improved/developed until present. Recent attempts in the area of metallurgical processing of valuable metals from copper anode slimes include highly oxidative leaching [16,17,18,19,20,21,22], microwave- and ultrasound-assisted leaching [23,24,25,26], …
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Tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a by-product of the copper electrorefining process. Choosing the proper recovery method strongly depends on the slimes composition, mineralogy, and tellurium concentration. In addition, correctly selecting the right method of leaching, purification, …
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High quality anodes are uniform in weight and shape. The anode itself has a sharp form including the anode ear, but the overall surface quality needs to be smooth, and there should be no fins, bulges …
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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), 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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Anode slime processing. The anode slimes from the Aurubis copper tankhouses are processed together with the rich lead from the lead refinery in the precious metal production plant. With Aurubis' modern, environmentally friendly precious metal production facilities, the company covers a wide range of feed materials rich in precious metals.
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Saganoseki Smelter and Refinery started operation of its copper anode slimes treatment plant using a hydrometallurgical process—the first of its kind in Japan—in 1997 (Toraiwa et al. []).The adoption of this process yielded many operational advantages including higher product quality, higher productivity, shorter gold -retention time, and …
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Anode mud, also called anode slime, is the insoluble muddy substance that is attached to scrap anode surface or precipitated at electrolyzer bottom during aqueous solution electrometallurgy. ... The plants in China that process copper- and lead-based anode mud usually use the following two processes. One is mineral processing …
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SMM operates an original slime treatment process for recovering precious metals and other metals (l'e,Se,Sb,Bi)from the copper and the lead anode tankhouse slimes. In recent years, the amount of slimes has increased and the pyrometallurgical processing units capacity became the bottleneck of the entire plants.
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This work focuses on processing of anodic slimes obtained from an Egyptian copper electrorefining plant. The anodic slimes are characterized by high concentrations of copper, lead, tin and silver. ... Recycling of copper telluride from copper anode slime processing: Toward efficient recovery of tellurium and copper. Hydrometallurgy, …
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DOI: 10.3390/su151511919 Corpus ID: 260675278; Recovery of Tellurium from Waste Anode Slime Containing High Copper and High Tellurium of Copper Refineries @article{Sarangi2023RecoveryOT, title={Recovery of Tellurium from Waste Anode Slime Containing High Copper and High Tellurium of Copper Refineries}, …
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The anode slime obtained from the copper electrorefining tank contains several valuable elements. The physico-chemical characteristics of the anode slime determines the …
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There are numerous viable approaches to the treatment of anode slimes from electrolytic copper refining. Of particular interest in the treatment of slimes are the behavior and recovery of selenium. The understanding of the process chemistry involved in the treatment of anode slimes should be aided considerably by recent work on the formation and …
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on the cathode. As the copper anodes dissolve in the process, solid impurities within the anode emerge and form an anode slime on the surface of the anode. Previous studies …
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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, …
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The electrorefining process operates on a ten-day cathode, twenty-day anode cycle and involves dissolution of impure copper anodes (each 365 kg in weight, in batches of 56 anodes) into an electrolyte (CuSO 4-H 2 SO 4-H 2 O; ∼45 gpl Cu, 170 gpl H 2 SO 4, 63 °C) by applying an electrical current (28,000 A; 0.3 V) between the anode and a ...
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Copper anode slime is a precious by-product formed during the copper electrorening process [–41]. In order to pre- ... in copper anode slime from dierent reneries [1] Plant Saganoseki Las Ventanas Townsville Amarillo Kayseri Boliden Country Japan Chile Australia USA Turkey Sweden Cu (wt%) 25.2 24.3 21 19.6 18 15.7 ...
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Physicochemical Problems of Mineral Processing, 36 (2002) 123-134 Fizykochemiczne Problemy Mineralurgii, 36 (2002) 123-134 A.M AMER* PROCESSING OF COPPER ANODE-SLIMES FOR EXTRACTION OF METAL VALUES Received March 5, 2002, reviewed, accepted May 28, 2002 Processing of anodic slimes from an Egyptian …
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Unlike pyrometallurgical processing, hydrometallurgical processing involves no flue dust and slag handling, which decreases the amount of locked-up inventory. It has a low …
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After leaching experiments, 97% of copper was recovered from the copper anode slime using ChCl-urea under an optimum condition at 95 °C of reaction temperature, 4 h reaction duration and, 1/25 g ...
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This paper presents the results of a study of phase transformations occurring in copper-telluride by-products during its processing of oxidation-distillate roasting at low pressure. The results show that copper telluride is oxidized through intermediate compounds to the most stable tellurate (Cu3TeO6) at low temperatures. The increase in …
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Technology, in addition to supply and demand, is driving current advances in mineral processing. Over the past three decades, demand for various minerals has continued to rise, while the mineral processing sector has faced challenges such as the need for more sophisticated ore treatment, lower plant feed quality, and poorer plant performance due …
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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 large amount of valuable metals. In this article, a vacuum distillation three-stage condensation process is proposed to efficiently and selectively …
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The use of copper anode slime (CAS) for the removal of lead, bismuth, and arsenic is the key to recovering precious metals. In this paper, vacuum differential gravimetry experiments combined with thermodynamic equilibrium calculations reveal the effects of the temperature, system pressure, and carbon concentration on the …
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Copper telluride is a sort of solid waste generated from copper anode slime processing, from which the recovery of copper and particularly the high-value element of tellurium always encounter technical difficulties due to the complex physicochemical properties of tellurium. ... In the industrial plants such as Vale's CRED Plant in Canada ...
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plant is tailored to the requirements of your raw material. Our anode slime treatment plant consists of slime collection, leaching, and dewatering using Outotec OKTOP leaching …
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The copper slag is skimmed off, crushed and returned to the anode furnace. Four materials are received at the selenium plant for processing: crude selenium from the chain roaster scrubber, neutralized slag leach solution, and two types of scrubber solution. Typical assays of the materials are given below:
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