From waste to wealth: Unlocking the value of copper anode …
Section snippets Sample. For this study, the sample was collected from the electro-refining plant of the Sarcheshmeh copper complex. Sarcheshmeh copper complex (NICICO) is one of the most important copper mining and metallurgical complexes globally and is undoubtedly the most important one in Kerman, Iran (Dehghanpoor et al., 2016). …
The treatment of copper refinery anode slimes | JOM
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 …
Anode slimes
Anode slimes is a by-product of the electro-refining process and consists of the insoluble impurities from the anode that fall to the bottom of the refining cell. The anode slimes are recovered from the refining cells, dried in an oven and …
Copper anodes
Luvata is a leading supplier of copper anodes for electroplating. Our copper anodes are manufactured from the purest electrolytically refined copper cathodes, which are melted under strictly controlled conditions …
Detailed characterisation of precious metals and critical …
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 ...
Current Operations in SMM's Slime Treatment
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.
Copper Electrorefining Technology
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 …
Sahlman, Mika; Aromaa, Jari; Lundström, Mari …
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 …
Unique Hydrometallurgical Process for Copper-Anode …
pressure at 70–85 °C. Oxygen in the air reacts with copper and copper compounds to dissolve copper according to Reactions (1)–(4). The copper content remaining in the residue after leaching for 18–24 h is less than 1%. Anode Slime Decopperizing Leaching Solution Decopperized Slime Detellurizing Wet Chlorination Silver Chloride Copper ...
Recovery of scattered and precious metals from copper anode slime …
Because of the addition of copper sludge, copper cables, waste printed circuit boards, and other types of recycled copper to the copper smelting process, the anode slime is rich in tin (Sn), manganese (Mn), arsenic (As), lead (Pb), and other heavy metals, causes the composition of anode slime to fluctuate greatly (Li et al., 2020; …
Hydrometallurgical Precious Metals Process
Unlike pyrometallurgical processing, hydrometallurgical processing involves no flue dust and slag handling, which decreases the amount of locked-up inventory. It has a low …
Processing of copper anodic-slimes for extraction of …
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, …
Applied Sciences | Free Full-Text | Thermodynamic Behavior …
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 …
Tellurium, from Copper Anode Slime to High Purity …
copper anode slime.[2,7] Major components of copper anode slime are copper, sulfur, silver, selenium, arsenic, lead, gold, nickel, antimony, and tellurium. Apart from copper anode slime, tellurium is also recovered in much lesser quantities from primary resources and other sec-ondary resources, such as solar panel cell wastes. The
Recovery of scattered and precious metals from copper …
Because of the addition of copper sludge, copper cables, waste printed circuit boards, and other types of recycled copper to the copper smelting process, the anode …
High quality copper anode production: Key …
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 …
Selective Separation and Recovery of Tellurium from …
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 ...
Phase Transformations and Tellurium Recovery from Technical Copper …
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 …
Electrolytic Copper Refinery of Slimes
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:
Anode Mud
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 …
Characteristics and Processing of Copper Refinery Anode Slime
The anode slime obtained from the copper electrorefining tank contains several valuable elements. The physico-chemical characteristics of the anode slime determines the …
DEVELOPMENT OF CHARACTERIZATION METHODS FOR …
content of anode slime. The main phases in the anode slime were copper and lead sulphates as well as copper-silver selenides. NiO was shown to be the major Ni-bearing …
Recovery of Silver and Gold from Copper Anode Slimes
processing of gold and silver ores, the recovery of these precious metals from copper anode slimes re-mains an important and potentially increasing supply source, and hence the operations involved warrant a technology review. Copper anode slimes are precipitated at the bottom of copper electrore-fining cells during copper electrolytic ...
PRESSURE LEACHING OF DECOPPERIZED COPPER …
The processing of copper anode slimes is an additional economic driver for copper electrorefineries, due to the fact that slimes contain precious metals such as silver, gold …
Selective Separation and Recovery of Valuable Metals by …
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 …
A green and economical process for resource recovery from …
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, …
for recovery Hydrometallurgical
Hydrometallurgical processing of anode slime for recovery of valuable metals J. BISWAS', R.K.JANA', V. KUMAR', P. DASGUPTA', M. BANDYOPADHYAY2 and S.K.ALZ 'National Metallurgical Laboratory, Jamshedpur-831007 ZJadavpur University, Calcutta-700032 ABSTRACT The anode slime obtained from Indian Copper …
Processing of Copper Anode-Slimes for Extraction of Metal …
Anode slime is one of the important secondary resources of copper, which is obtained as a by-product during electrolytic refining of copper due to the settling of more noble metals such as gold ...
Copper Anode Slime (CAS) Processing and Recovery of …
Copper anode slime (CAS) processing and recovery of precious metals has become increasingly important today.It is an important industrial material that arises as a byproduct of the electrolytic refining process of copper.This slime contains strategic elements such as selenium, tellurium, gold, silver, and platinum group metals, holding crucial importance …
The Treatment of Copper Refinery Anode Slimes
Anode slimes from copper electro-re fining are normally processed to recover silver, gold, selenium and tellurium. Small quantities of palladium and pla tinum can be recovered as well. Because copper producers are in terested in the behavior of impurities in copper electrorefining and in the man ner in which different impurities can