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Copper anode slimes, the byproduct 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 ...
Michael S. Moats, William G. Davenport, in Treatise on Process Metallurgy: Industrial Processes, 2014. Electrorefining of Impure Nickel. Electrorefining of cast impure nickel anodes to pure nickel cathodes was once a common way of producing highpurity nickel. It is still used at Norilsk, Russia; Pechenga, Russia; and Jilin, China.
Electrorefining Of Copper Process. anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of coppert generally contains cu, ni, se, te, ag, au, platinum group metals pgm, pb, ba, fe, etcwing to the presence of valuable metals.
Some of the nickel ends in anode slime. Pb, Zn, and Sn are rejected in slag or offgas, especially in bath smelting, and in converting, less than 10% of these end up in blister copper. Pb can also be removed in the anode furnace by using silica flux. Pb, Zn, and Sn end up in anode slime during electrorefining.
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 ...
copper electrorefining process anode slime. Processing of copper electrorefining anode slime a review. Processing of copper electrorefining anode slime a review J. Hait *1, R. K. Jana 1 and S. K. al 2 Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper.
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 researchers to extract them following pyro, pyrohydro ...
Anode slime is a byproduct of copper or lead electrorefining 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 two different methods, i ...
Anode slime, a byproduct from the process of copper electrorefining into the copper cathode, contains several valuable elements that can be extracted after Cu and Pb separations. Another alternative route for extracting the precious metals is still needed in .
Copper electrorefining (CuER) is the principal method for producing >70% of high or % pure copper cathodes from 9799% pure blister/fire refinedscrap 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 metals (Mt) codissolved ...
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 created by the electrorefining process. Copper concentrates can also contain precious metals like gold and silver.
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 created by the electrorefining process. Copper concentrates can also contain precious metals like gold and silver.
copper electrorefining process anode slime Construction Waste Crusher Construction waste refers to the construction, construction units or individuals to construct, lay or demolish all kinds of buildings, structures and pipe networks, etc., and generate the spoil, spoil, waste, residual mud and other wastes generated during the repairing process.
Slime From Copper Electrorefining Process. Jan 01 1994nbsp018332This phase will be presented in the liquid phase L as droplets because of the small quantity of the impurities Fig 8a TH E ORIGIN OF COPPER ELECTROREFINING SLIME 3 5 5 Fig 8 A scheme for the formation of spherical slime particles in the process of anode copper solidification according to Fig 7b
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 characterization of slimes.
Nov 28, 2019· The busbars are of copper and extend along the main wooden frame that covers the top of the entire bench of cells. Other metals, which during the processing of the target metal have been reduced but not deposited at the cathode, sink to the bottom of the electrolytic cell, where they form a substance referred to as anode sludge or anode slime.
Apr 02, 2004· A new approach for the treatment of copper electrorefining anode slime based on hydrometallurgical route involving sulfuric acid leaching with additives such as manganese dioxide and sodium chloride has been developed at National Metallurgical Laboratory (NML), Jamshedpur, India. Mineralogical characterization of the anode slime and the residues after various leaching treatments, .
The decopperized anode slime raw material used in this study was collected at the Boliden Harjavalta copper refinery from the filter press which is located immediately after the autoclave process. The solid samples were analyzed both before and after secondary pressure leaching to determine the amount of elemental extraction and
Anode slime samples were collected from the bottom of the electrolytic cells during the electrorefining of copper. These samples were sieved through a mm sieve to remove large inclusions of copper and other foreign material present in the slime. A representative sample of the feed slime was analysed for Cu, Pb, Sn, Zn, Ni, Fe,
Anode slime is a byproduct from copper or lead electrorefining 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, pyrometallurgy and ...
Electrowinning is the oldest industrial electrolytic process. The English chemist Humphry Davy obtained sodium metal in elemental form for the first time in 1807 by the electrolysis of molten sodium hydroxide.. Electrorefining of copper was first demonstrated experimentally by .
Anode Slime. Anode slime is a product obtained from the copper electro refining process. It contains, among other elements, precious metals formerly contained both in the copper concentrate and in the copper recycled materials treated in our Smelter.
Anode slimes contain a significant amount of precious metals, therefore, their processing has a substantial economic impact on plant profitability. The first step of the anode slime treatment process is decoppering, in which copper is typically removed from slimes by oxidative pressurized acid leaching [1 .
The following subchapters present in more detail the copper electorefining process and different factors affecting the adherent anode slimes. The electrorefining of copper In the electrorefining process, copper is dissolved electrochemically from the impure copper anode into the electrolyte and then electrodeposited as pure copper.
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