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Pure lead anodes were used for electrowinning zinc in the beginning; however, they dissolved extensively at the current densities and temperatures encountered in zinc electrolysis. Contamination of the zinc deposit and the valuable manganese dioxide byproduct in the anode slime resulted.
In these processes, impure silver anodes are placed in a bath of silver nitrate and when a voltage is applied across the electrodes, silver and other base metals are corroded into the electrolyte. Pure silver is deposited onto the cathode as a powder, while gold is left behind on the anode as a slime. Get Price
The whole of the gold is recovered as anode slime in cloth bags surrounding the anodes. 0 In later installations, under the 1895 patent, the anodes are placed horizontally on a porous tray resting within the solution above an endless silver band revolving, also horizontally, over rollers placed near the ends of a long shallow tank.
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 ...
Even in the same refinery with the same anode, the VPTC is not the same under different electrorefining conditions, which indicates that the efficiencies of the homogeneous co-precipitation of arsenic, antimony and bismuth are different, i.e., the fraction of As, Sb and Bi dissolved from the anode and then deposited into the anode slimes ...
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 ...
ANODE SLIME MSDS : Product and Company Identif ication. Product Name. Anode Slime . No. GSR - SDS 003. Manufacturer Information. Manufacturer's Name PT. Smelting Gresik Smelter and Refinery Address Desa Roomo, Kecamatan Manyar PO. Box 555 Gresik 61151 Jawa Timur - Indonesia
Processing of copper electrorefining anode slime: a review: Mineral . 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 . Electrorefining of a Base Metal Refinery residue copper alloy Core
PHYSICAL SPECIFICATIONS. ICC Copper anode slime. Colour - Black. Size - Powdery material
Impurities from the copper anode, such as gold, silver, platinum and tin, collect at the bottom of the electrolyte solution, deposited as anode slime. -----More Details On The Impurities Here Ag, Au, tin and Pt are more noble than copper, insoluble in this electrolyte and so do not deposit on the cathode.
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.
Metals such as gold and platinum, which are insoluble in nitric acid, do not dissolve and report to the anode mud. The production in the anode compartment of a gold-bearing slime, which can cause passivation of the silver anodes, must be periodically removed, creating materials-handling challenges.
Jul 18, 2016· The present paper attempts to investigate the chemical synthesis of gold nanoparticles from copper anode slime (containing 0.1 % Au) that is an insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. First, the anode slime was washed by nitric acid.
Keywords : Anode slime, Characterization of anode slime, Leaching, Recovery of vauable metals. INTRODUCTION Anode slime is the insoluble product deposited at the bottom of the electrorefining tank at the time of electrorefining of copper. It contains valuable 216
Sarcheshmeh anode slime is mainly consisted of Cu, Ag, Pb and Se. Amount of Ag in the considered anode slime was 5.4% (by weight). The goal was to recover as much as possible Ag from anode slime at atmospheric pressure to synthesize Ag nanoparticles. Therefore, acid .
cost of copper electrorefining anode slime processing. 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 . Know More
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 ...
These are then reduced by chemical reactions to refine the metal. 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.
Nov 01, 2017· During copper electro-refining process, cathode copper is obtained, and the insoluble impurities such as gold, silver, lead, tin, and antimony are deposited on anode, known as anode slime (Ghodrat et al., 2016). For a long time, extensive studies have been carried out on the recycling of anode slimes (Hait et al., 2009). Precious metals ...
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
Mineral Processing Slime miqueridoviejo. 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 +Get ...
Impurities from the copper anode, such as gold, silver, platinum and tin, collect at the bottom of the electrolyte solution, deposited as anode slime. -----More Details On The Impurities Here Ag, Au, tin and Pt are more noble than copper, insoluble in this electrolyte and so do not deposit on the cathode.
The precious-metal alloys are then treated chemically and by electrolytic refining methods to separate and recover the individual metals. The recovery of precious metals and by-product metals is an important phase of the electrolytic refining of the common base metals.
Selenium is mostly extracted from copper anode slimes because the selenium-rich ores are too rare to be mined with profit. When copper anode slimes are processed in a precious metal plant the first step is to remove copper by pressure leach in an autoclave. The anode slime .
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