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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.
Figure 2 shows that the copper extraction rate increased with the increase of temperature in the range 6585oC. Further increase in temperature had a little effect on copper extraction. Fig. 2. The effect of temperature on the leaching rate of copper from anode slime by oxygenated M H2SO4, particle size 75 µm Applying the following equation:
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.
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.
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.
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.
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 ...
from copper anode slime Recovery of gold from copper anode slimes is a multistages process There are more than 650 operating and planned copper mines, 140 smelters and 250 refineries world wide
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
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 ,...
Anode slime is the 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 ...
Anode slime from copper electrolysis, though a byproduct of copper industry, contains man y valuable and important metals like nickel, copper, selenium, tellurium
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.
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 ...
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 ...
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.
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, .
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 ...
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 ...
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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.
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
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.
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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