منزل anode slime from copper electrorefining process

anode slime from copper electrorefining process


  • [PDF] Characteristics of anode slime obtained from secondary copper …

    In this paper are presented the results of major element distribution from copper anode to anode slime as so as the percentage of anode slime that was obtained during the copper anode electrorefining process. The conventional copper anodes were changed with anodes with 87.70 wt. % Cu and 93.31 wt. % Cu. Nickel content in anodes was approximately 5 or 10 wt. …


  • An environmentally friendly process to selectively recover silver …

    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 pyrometallurgy, …



  • Copper Refining Electrolyte and Slime Processing

    Copper electro-refining (Cu-ER) is the principal method for producing >70% of high or 99.97% pure copper cathodes from 97-99% pure blister/fire refined-scrap copper anodes. While the inert and most of less soluble impurities settle as anode slime/sludge, other soluble impurities, particularly the metalloids (group VA/15 elements or Q: As, Sb and Bi) and some transition …




  • Studies of Anode Slime Sintering/Coalescence and Its Effects on Anode …

    When the anode is exposed to the electrolytic solution during the process of copper electrorefining, less noble impurity elements in solid solution in the copper matrix are dissolved into the electrolyte, but most inclusion phases at the copper grain boundaries are insoluble and become exposed to the solution, forming an anode slimes layer ...


  • Augmenting metal leaching from copper anode slime by …

    Copper anode slime (CAS) is a solid byproduct of copper electrorefining process, from which the recoveries of base metals (copper, nickel), high-value rare elements (tellurium, selenium) and precious metals (silver, gold) often witnessed problems because of the complexity of constituent phases in the slime.



  • Total Recovery of All Constituent Metals from Copper Anode …

    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 extraction …




  • 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 …


  • DEVELOPMENT OF CHARACTERIZATION METHODS FOR …

    anode slime samples were compared to optical micrograph and SEM-BSE images of respective anode copper samples. It was shown that SEM-EDS and SEM-BSE provided precise information about phases formed during electrorefining. The settling rate and particle size had a correlation only with a copper content of anode slime. The main phases in the ...


  • Settling Properties of Copper Electrorefining Anode Slimes

    In optimal electrorefining process, the settling rate of anode slime is sufficiently high to avoid the risk of getting the slime entrapped in copper cathodes. In this research the settling properties of copper electrorefining bottom slimes, mainly consisting of Cu, Ni, Ag, Se, Pb, As, Bi, Sb and Ba compounds, were studied by settling rate tests.



  • Tellurium, from Copper Anode Slime to High Purity Product: A …

    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, and precipitation in …


  • Extraction of copper and gold from anode slime of …

    During the electrorefining of copper, some metals are accumulated in the byproduct anode slime, which is an important source for recycling and recovery of these metals (Petkova, 1994). In this paper, a hydrometal-lurgical route is …


  • Anode slime behaviour in a laboratory‐scale copper electrorefining process

    Combining conventional electrochemical measurements, laser-based visualization and digital image processing, the movement of anode slime, its spatial distribution and path of falling during the copper electrorefining process were investigated in a laboratory scale cell. Two types of anode slime, small agglomerates and fine particles were observed.


  • During the electrorefining of copper the anode is made of?

    Electrorefining entails electrochemically dissolving copper from impure copper anodes into an electrolyte containing CuSO 4 and H 2 SO 4 and then electrochemically depositing pure copper from the electrolyte onto stainless steel or copper cathodes. The process is continuous.


  • PL147036B1

    Method of recovering metals from copper electrorefining process anode slime Download PDF Info Publication number PL147036B1. ... 229910052802 copper Inorganic materials 0.000 title claims description 22; 229910052751 metal Inorganic materials 0.000 title claims description 15;


  • (PDF) Extraction of copper and gold from anode slime of …

    Extraction of copper and gold from anode slime of Sarcheshmeh Copper Complex. mortaza zivdar. 2016, Journal of the Southern African Institute of Mining and Metallurgy. last decade. This increase is due not only to the increasing demands of the jewellery market, but also to the increasing demand for gold in industrial as well as medical ...




  • The treatment of copper refinery anode slimes | SpringerLink

    Abstract. 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 ...


  • Behaviour of anode impurities in copper electrorefining: Effect of

    The anode containing sulfur, arsenic and oxygen was also investigated in terms of the form of anode slime and anode passivation. On the electrolysis of the anode with arsenic content, the fluffy slime of Cu 3 As was filled in among the Cu 1.96 S particles. A copper anode of low arsenic content did not passivate since the slime layer tended to fall.


  • (PDF) Chlorine leaching of Au from copper anode slimes using …

    Donmez et al. (2001) also exploited. In the copper electrorefining process, insoluble developed a chlorination–cementation process for the impurities accumulate at the bottom of cells as anode recovery of Au from decopperized anode slime. ... silver and metals leaching from a chalcopyrite concentrate using chlorider- copper from the copper ...


  • US5939042A

    The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slimes. The method comprises maintaining a molar ratio Ag/Se, Ag/S or Ag/Se+S at a value of about 2 or less in the slimes during leaching thereof in an autoclave. The excess of selenium and/or sulphur allows the formation of Ag2Se or Ag2S, …



  • Why is impure copper used as an anode in electrorefining?

    What happens during electrorefining of copper? Electrorefining entails electrochemically dissolving copper from impure copper anodes into an electrolyte containing CuSO 4 and H 2 SO 4 and then electrochemically depositing pure copper from the electrolyte onto stainless steel or copper cathodes.The process is continuous.



  • Copper Anode Slime Recovery-Copper-

    Anode slime is a byproduct from copper or lead electro-refining process. The copper/lead anode slime usually contain As, Sb, Bi and precious metals like gold and silver. Smelter of anode slime is most likely divided into two groups by the two different recovery processes based on its property and treatment capacity, i.e. pyrometallurgy and ...



  • Anode Slimes | Konkola Copper Mines Plc

    During the electrolysis process pure copper is deposited on cathode plates and impurities which are soluble fall to the bottom of the cell as anode slimes or sludge. Precious metals (Ag, Pt, Pd), can be extracted from the anode sludge …