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It is also vital in electrolysis, fundamentally to refine copper, nickel and uranium, and it is indispensable in water treatment, the textile fibers manucaturing and galvanizing. Anode Slime. Anode slime is a product obtained from the copper electro refining process.
A process for the removal of lead content in anode slime by subjecting the latter to primary and secondary leach in a medium of an ammonium acetate solution at a temperature not exceeding 80° C. Whereby lead dissolution is maximized and other metals are minimized. Separate the leach solution from the undissolved slime residue, crystallize lead from the separated leach solution and recover the ...
Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes Radmila Markovic1, ... during the change depending on the general conditions for the electrolysis as well as electrolysis getting anode copper. The cathode deposit must not be contaminated and the anodes must not be ... the stannic hydroxide and remain in the 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, .
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 ...
Pure copper cathode sheets The refining anodes taken out from the refining furnace is changed into electrolytic copper with purity of % through an electrolysis process: During electrolysis, copper (II) ions leave the impure copper anode and since they are positive, migrating to the negative cathode.
Patent US 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 ...
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 ...
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.
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 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 .
Anode: 4OH 4e → 2H2O + O2↑ 2SO42+2H2O 4e → 2H2SO4 + O2↑ After treatment of the cathode surface, the copper layer deposited on the cathode can be peeled off, to obtain a certain thickness of copper sheet. The copper sheet with certain functions is called copper foil.
Adherent anode slime samples were collected from the Boliden Harjavalta''s Pori refinery during MarchApril 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
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 electrorefining process the anode slime has been gained as secondary product.
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The main components of the anode slime (CuAgSe, Cu 2x Se y S 1y, Ag 3 AuSe 2) react with oxygen, producing mostly copper and selenium oxides as well as AgAu alloys as final products at ...
Equipments For Processing Anode Slime Know More. equipments for attrition for copper anode slime Patent US Treatment of anode slime from copper Google Mar 16, 1976 Process for the flotation of anode slime from copper electrolysis size of anode slime, concentration of pulp dimension of attrition apparatus, Gold 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.
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
The SEM images of the dried and ground anode slime sample produced by an electrolysis of 3h with 1000 A/m2, a)– low magnification, b)– high magnification of the marked area Figure 4. The characteristic EDX spectra of the anode slime produced in 3h with 1000 A/m2 Figure 5 The XRD spectrum of the produced anode slime sample (3h electrolysis with
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 ...
During the electrolysis the metals present in the anode, which are of lower electrochemical activity than copper, chiefly silver, tellurium, gold, and traces of platinum, are precipitated as slimes on the floor of the electrolysis cells as they are released from the anodes (Table ). Any mercury, which is frequently present in the ore, is ...
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