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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
Copper electrorefining cuer is the principal method for producing 70 of high or 9997 pure copper cathodes from 9799 pure blisterfire refinedscrap copper anodes while the inert and most of less soluble impurities settle as anode slimesludge other soluble impurities particularly the metalloids group va15 elements or q as sb and bi and some transition metals mt codissolved
Typically the industrial copper electrolytes contain 4060 gdm3 cu2 130220 gdm3 h2so4 00425 gdm3 ni2 000530 gdm3 as and have operating temperature of 5570 c in optimal electrorefining process the settling rate of anode slime is sufficiently high to avoid the risk of getting the slime entrapped in copper cathodes
2015127ensp enspkey words microwave copper anode slime pretreatment pressure leaching 1 introduction in the process of copper electrorefining undissolved oxides metals and other compounds are deposited on the bottom of the cell and copper anode slime is produced as
7 processes to produce precious metals 71 eurometaux jul 3 2014 anode slimes from electrolytic copper refining are a significant source of precious environmental legislation but also from the acute rise in silver prices but process the lead alloy directly to recover precious metals copper electrorefining and for other materials using processes described above
20151217ensp enspthe following subchapters present in more detail the copper electorening process and different factors affecting the adherent anode slimes 21 the electrorening of copper in the electrorening process copper is dissolved electrochemically from the impure copper anode into the electrolyte and then electrodeposited as pure copper
Copper electrorefining process anode slime processing of copper electrorefining anode slime a 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 tank during electrorefining of copper
Accordingly a hydrometallurgical process is provided for separative treatment of electrometallurgical anode slime having substantial amounts of tin dioxide and lead sulfate preferably the anode slime is obtained from the electrorefining of copper and most preferably so secondary copper the process comprise the following steps
201791ensp enspkeywords secondary copper anode nickel anode slime wast e sulfuric acid solution abstract in this paper are presented the results of major el ement distribution from copper anode to anode slime as so as the percentage of anode slime that was obtained during the copper anode electrorefining process
201353ensp enspin the base electrolyte remain at the anode and become part of the anode slime form the floating slime and possibly deposit onto the cathode 7 the composition of the electrolyte and the temperature are two very important parameters requested for the proper process of the electrorefining of copper anodes the measurements have
2019526ensp enspa 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
20201119ensp enspcombining conventional electrochemical measurements laserbased 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 two types of anode slime small agglomerates and fine particles were observed
Copper electrorefining mainly produce lme cucath1 copper cathode and byproduct anode slime from copper anode metalcess develops mini scale copper er from 1td copper electrorefining system with modular designeasy installation and saving installation instruction costoptimizing your return on
Copper electrorefining tests were conducted in a pilotscale cell under commercial tankhouse environment to study the effects of anode compositions current density cathode blank width and flow rate on anode slime behavior and cathode copper purity three different types of anodes high mid and low impurity levels were used in the tests and were analyzed under semeds
Some of the nickel ends in anode slime pb zn and sn are rejected in slag or offgas especially in bath smelting and in converting less than 10 of these end up in blister copper pb can also be removed in the anode furnace by using silica flux pb zn and sn end up in anode slime during electrorefining
Abstract 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
Copper electrorefining mainly produce lme cucath1 copper cathode and byproduct anode slime from copper anode metalcess develops mini scale copper er from 1td copper er system with modular designeasy installation and saving installation instruction cost
Copper anode slimes the byproduct of the copper electrorefining process have been the subject of extensive investigation for recovering precious metals viz au ag pt and pd in addition to being the main source of rareenergycritical elements such as se and te there have been various approaches aiming at the development of extraction processes involving thermal and aqueous approaches
20201222ensp enspanode slime is produced during the electrorefining of impure copper anodes to produce pure copper cathodes 26 27 the insoluble impurities of the copper
These have a pure copper cathode on which copper is deposited eq 1320 and a lead anode rather than the copper anode used in electrorefining the lead anode reforms sulfuric acid from the hydrogen ions released from water instead of contributing dissolved lead to the electrolyte eq 1322
20151111ensp enspanode slime samples were compared to optical micrograph and sembse images of respective anode copper samples it was shown that semeds and sembse provided precise information about phases formed during electrorefining the settling rate and particle size had a correlation only with a copper content of anode slime
2013718ensp enspabstract 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
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
201869ensp ensp2009 processing of copper electrorefining anode slime a review mineral processing and extractive metallurgy vol 118 no 4 pp 240252
Request pdf settling properties of copper electrorefining anode slimes the settling properties of anode slime in copper electrorefining have crucial effect on copper cathode quality anode
Anode slime behaviour in a laboratoryscale copper electrorefining process authors x ling department of chemical engineering university of waterloo waterloo ontario n2l 3g1 search for more papers by this author z h gu
Combining conventional electrochemical measurements laserbased 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 two types of anode slime small agglomerates and fine particles were
2007621ensp enspelectrorefining 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 ie the electrode reactions are at the anode m mn neand at the cathode mn ne m
2019610ensp enspthe anode slime is collected in the bottom of the electrolytic cells during the copper electrorefining this slime generated during the copper refining process contains among other base metals costly precious metals as previously mentioned the blister copper from
