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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
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
This slime generated during the electrorefining of copper anodes refining process contains among other base metals recoverable quantities of gold silver and the platinum group electrolytic refining of metals is highly possible for extraction of precious metal and PGM from the anode slime
Anode slime is a byproduct from copper or lead electrorefining process The copperlead 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 ie pyrometallurgy and hydrometallurgy
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 Slimes From Copper Process Shenyang Huachang NonFerrous Mining Co Ltd is a leading importer of anode slimes from China
US4002544A Hydrometallurgical process for the recovery A hydrometallurgical process for the recovery of silver selenium and tellurium from the anode slime produced in the electrolytic refining of copper or lead or from other raw materials bearing these metals wherein the raw material and concentrated sulfuric acid or oleum are heated at approx 160°300° C preferably 160°200° C in
The processing of copper anode slimes is an additional economic driver for copper electrorefineries due to the fact that slimes contain precious metals such as silver gold and platinum group metals PGMs eg Pt and Pd as well as base metals like copper nickel selenium tellurium and impurity elements such as lead antimony and bismuth
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 133 Any mercury which is frequently present in the ore is mostly vaporized in the hot smelting stages prior to
Virtually all copper produced from ore receives an electrolytic treatment at some stage either via electrorefining from impure anodes or electrowinning from leach or solvent extraction liquors Electrorefining produces the majority of cathode copper ca
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