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The main process stages for copper production include feed preparation, smelting, converting, firerefining, anode casting, and electrorefining, also together six process stages or subsystems. The treatment of offgases from smelting includes dust collection and recycling, and acid production.
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.
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 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 ...
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 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 Ag 2 Se or Ag 2 S, which remains ...
As a result of the electrorefining process the anode slime has been gained as ... is used, which is realized with the help of D8 Advance Bruker AXS equipment. ... Electrorefining of Copper. In an electrorefining process, the anode is the impure metal and the impurities must be lost during ... in water ( refining of copper via Cu+ would ...
The anode slime is collected in the bottom of the electrolytic cells during the copper electrorefining. This slime generated during the copper refining process contains, among other base metals, costly precious metals. As previously mentioned, the blister copper, from
Electrorefining of Copper 1. Electrorefining – General Introduction In an electrorefining process, the anode is the impure metal and the impurities must be lost during the passage of the metal from the anode to the cathode during electrolysis, the electrode reactions are, at the anode: M → Mn+ + neand at the cathode: Mn+ + ne→ M
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
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.
Effect of process variables on oxidative pressurized acid leaching of copper electrorefining anode slimes Sipi Seisko1,a, Jari Aromaa1, Petri Latostenmaa2, Olof Forsen1, and Mari Lundstrom1 1Aalto University, Department of Materials Science and Engineering, Vuorimiehentie 2, 02150 Espoo, Finland 2Boliden Harjavalta Oy, Teollisuuskatu 1, 29200 Harjavalta, Finland
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. 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. Send Email: [email protected] Leave Message Chat Online.
Copper Electrorefining Process Anode Slime. Copper electrorefining process anode slime Copper ore beneficiation plant Dolomite stone processing plant Pure silver is deposited onto the cathode as a powder while gold is left behind on the anode as a slime Get Price ANODE SLIME GAINED DURING ELECTROLYTIC REFINING .
efficiency of copper electrorefining. Declining concentrate grades cause larger impurity levels in anodes, thus creating larger quantities of slimes in the refining process. In order to investigate the characterization methods for adherent anode slimes in copper electrorefining, experiments were conducted for the Boliden
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.
The most effective hydrometallurgical processing of anode slime is based on a chlorination route. However, it requires special attention with respect to pollution problems and construction materials. To minimize the problems, a new hydrometallurgical approach was pursued for the recovery of valuable metals and metalloids from copper electrorefining anode slime. The process involved the ...
Aug 25, 2016· An innovative copper electrolytic cell was designed with its inlet at the cell top and its outlet near the cell bottom, in opposite to conventional electrolytic cells. It was modeled in COMSOL Multiphysics to simulate copper electrorefining process. Unlike conventional electrorefining cells, downward electrolyte flows are more dominant in the fluid flow field in this cell, which leads to ...
Nov 28, 2019· Electrowinning, also called electroextraction, is the electrodeposition of metals from their ores The most common electrowon metals are lead, copper, gold, silver, zinc, aluminium, chromium, cobalt, manganese, and the rareearth and alkali. Electrorefining is the preferred method as an electrolytic process for gold and other precious metals.
The treatment of copper scrap consisted of copper smelting and converting, copper electrorefining, anode slimes purification by H 2 SO 4 leach (to remove Cu + Ni), doré smelting and silver electrorefining in a Thum cell, gold mud leaching with aqua regia, gold reduction with SO 2, and selective precipitation of red and yellow salts.
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 ...
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.
As a result of the electrorefining process the anode slime has been gained as ... is used, which is realized with the help of D8 Advance Bruker AXS equipment. ... Electrorefining of Copper. In an electrorefining process, the anode is the impure metal and the impurities must be lost during ... in water ( refining of copper via Cu+ would ...
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