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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 metals (Mt) co-dissolved ...
Nov 23, 2015· In this last video we smelt the dried anode slimes and recover a button of precious metals. This is the third and final installment of our smelting and gold refining series. Email: info@MBMMLLC ...
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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, .
Aug 01, 1990· 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.
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 ...
Silver refining is a core step of the processes of anode slime treatment and precious metals recovery in copper refineries (Hait, Jana and al, 2009; Ludvigsson and Larsson, 2003).It separates ...
Process for the flotation of anode slime from copper electrolysis comprising subjecting the anode slime, as a preliminary treatment, to attrition treatment in combination with a copper leaching treatment in a medium of an acid solution. The floated material obtained from the flotation is continuously subjected to three processes of roasting, melting and cupellation in a rotary furnace lined ...
Pure copper cathode sheets The refining anodes taken out from the refining furnace is changed into electrolytic copper with purity of 99.99% through an electrolysis process: During electrolysis, copper (II) ions leave the impure copper anode and since they are positive, migrating to the negative cathode.
Anode slime from copper electrolysis, though a byproduct of copper industry, contains man y valuable and important metals like nickel, copper, selenium, tellurium
Adherent anode slime samples were collected from the Boliden Harjavalta's Pori refinery during March-April 2014 from 31 different anode cells, one anode lug and one adherent anode slime sample from each. The adherent anode slimes were collected before washing of anodes, at the end of the electrolysis cycle. Then, the samples were
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 .
Patent US7670575 - Method and device for treating anode ... More precisely, the invention relates to a method and device for treating anode slime obtained from copper electrolysis.
Copper Electrolysis Process Explained It was desired to select an Arizona problem so the treatment of a porphyry copper ore seemed to be one of the most important This kind of ore when treated for the extraction of its copper by mechanical concentration and smelting the methods most generally employed yields 66 per cent or less of its copper ...
cast into anodes. Those copper anodes are electrorefined in an electrolytic system, where the electrolyte is an acid copper sulphate solution, where a high purity electrolytic copper is produced (>999,9/1000). The slime when submitted to an oxidative leaching process, using sodium hypochlorite and hydrogen peroxide as oxidizing agents, turn ...
Apr 10, 2014· The copper anode slime used in the experiments was provided by one of the copper smelters in China. Before experiments, the original copper anode slime was washed with hot water of 80 °C and then sieved with 100 mesh sieve to remove large particle. And then slurry was vacuum filtered and dried at 120 °C.
Anode slime is the 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 usually contain precious metals like gold and silver. Depending on the treatment capacity, process of anode slime recovery is achieved by two different methods ...
The main components of the anode slime (CuAgSe, Cu 2-x Se y S 1-y, Ag 3 AuSe 2) react with oxygen, producing mostly copper and selenium oxides as well as Ag-Au alloys as final products at ...
Mar 02, 2010· More precisely, the invention relates to a method and device for treating anode slime obtained from copper electrolysis. In copper electrolysis, the insoluble element of the anodes falls on the bottom of the electrolytic tank as anode slime, from where it is recovered when the anodes .
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.
Jul 18, 2013· 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 ...
from copper anode slime Recovery of gold from copper anode slimes is a multi-stages process There are more than 650 operating and planned copper mines, 140 smelters and 250 refineries world wide
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.
process in order to yield the anode slime. Three types of secondary copper anodes are electro refined in an electrolytic system, where the electrolyte is an acid of copper sulphate solution. As a result of the electro-refining process the anode slime has been gained as secondary product.
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