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Processing of copper electrorefining anode slime a review

  • Processing of copper electrorefining anode slime a reviewJul 18, 2013· Abstract. Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. It

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settling properties of copper electrorefining anode slimesjan 01, · 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. in this research the settling properties of copper electrorefining bottom slimes, mainly consisting of cu, ni, ag, se, pb, as, bi, sb and ba compounds, were studied by settling rate tests.characteristics and processing of copper refinery anode slimethe anode slime obtained from the copper electrorefining tank contains several valuable elements. the physicochemical characteristics of the anode slime determines the processing route to recover these elements. the slime invariably contains cu, ni, se, te, ag, au platinum group metals (pgm).chapter l hydrometallurgy solution miningrecovery of g from copper anode slimes is a multistages process; at first stage selenium and copper were separated from anode slime. then, anode slime was roasted table 1. the chemical composition of anode slim chemical composition weight.% au 0.106 seo 2 .1 cuo 5.90 fe 2o 3 0. bao 37.1 so 3 22.1 pbo 2.80 ag 2o 5.80 as 2o 3 0.88metallurgical process for total recovery of alltellurium is a rare metalloid that is vastly produced from copper anode slime, which is a byproduct of the copper electrorefining process. choosing the proper recovery method strongly depends oncopper electrorefining plant design configurationcoppercopper electrorefining mainly produce lme cucath1 copper cathode and byproduct anode slime from copper anode. metalcess develops mini scale copper er from 1t/d copper electrorefining system with modular design/easy installation, saving installation instruction cost and optimizing your return on investment.integrated process for recycling copper anode slime fromnov 01, · during copper electrorefining process, cathode copper is obtained, and the insoluble impurities such as g, silver, lead, tin, and antimony are deposited on anode, known as anode slime (ghodrat et al., ). for a long time, extensive studies have been carried out on the recycling of anode slimes (hait et al., 09). precious metals recycling is always the predominated focus.cited by hydrometallurgical processing of anode slimeshydrometallurgical processing of anode slimes obtained from the 67 figure 3. the sem images of the dried and ground anode slime sample produced by an electrolysis of 3h with 1 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 1 a/m2processing of copper electrorefining anode slime a reviewanode 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, pyrohydroeffect of thermal treatment of copper anodes onfeb 01, · the passivation of copper anode can also result due to the formation of copper powder on the anode surface by disproportionation of cu + ions (2cu + (sol) cu 2 +(sol) + cu°) which inters the slime and hinders the diffusion of the copper ions to the bulk solution (ilkhchi et al., 07). this copper powder can moreover cause cementation of the more noble metals like ag and forms cemented silver powder in slimecited by 4extracting silver from anode slime after lead andanode slime, a byproduct from the process of copper electrorefining into the copper cathode, contains several valuable elements that can be extracted after cu and pb separations. another alternative route for extracting the precious metals is still needed inthe treatment of copper refinery anode slimes springerlinkup to10%cash back· 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.cited by 52tellurium, from copper anode slime to high purity producttellurium is a rare metalloid that is vastly produced from copper anode slime, which is a byproduct of the copper electrorefining process. choosing the proper recovery method strongly depends on

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Advantages of processing of copper electrorefining anode slime a review

tellurium, from copper anode slime to high purity productoct 06, · tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a byproduct of the copper electrorefining process. choosing the proper recovery method strongly depends on the slimes composition, mineralogy, and tellurium concentration. in addition, correctly selecting the right method of leaching, purification, and precipitation in economic and environmental processingprocessing of copper electrorefining anode slime a reviewanode 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, pyrohydrocopper anode slime recoverycopper metalcessconventional pyrometallurgy process of copper anode slime consists the following steps roasting with sulfuric acid and deselenium acid leaching and decoppering noble lead furnace reduction smelting oxidation refining to separate silver silver electrorefining g electrorefining extraction of platinum and palladium refining of crude selenium extraction of tellurium.hydrometallurgical processing of anode slimeshydrometallurgical processing of anode slimes obtained from the 67 figure 3. the sem images of the dried and ground anode slime sample produced by an electrolysis of 3h with 1 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 1 a/m2processing of copper electrorefining anode slime a reviewjul , · 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 themcited by 86the treatment of copper refinery anode slimes springerlinkthere 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. most promising is aintegrated process for recycling copper anode slime fromnov 01, · the copper anode slime was obtained from a factory which is located in southern of china. before the experiment, h 2 so 4 solution was used to remove copper, and h 2 o 2 was added. the main chemical composition of anode slime was analyzed by inductively coupled plasma (icp), as shown in table 1.naclo 3 was taken as the chlorinating agent, h 2 so 4 was taken as the leachingeffect of thermal treatment of copper anodes onfeb 01, · a view of the copper anode sample after the electrorefining process is illustrated in fig. 2 with a slime layer formed on the anode surface and after its washing. download download fullsize image; fig. 2. photos of the copper anodes after electrorefining process (a) with slime layer (b) after washing of slime layer.copper refining electrolyte and slime processingcopper electrorefining (cuer) is the principal method for producing >70% of high or 99.97% 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/ elements or q as, sb and bi) and some transition metals (mt) codissolvedcited by 2copper refining electrolyte and slime processingcopper electrorefining (cuer) is the principal method for producing >70% of high or 99.97% 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/ elements or q as, sb and bi) and some transition metals (mt) codissolvedprocessing of copper electrorefining anode slime a reviewjul , · 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 themcopper anode slime recoverycopper metalcesscopper anode slime recovery. 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 g 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 capacityanode slime behaviour in a laboratoryscale coppercombining 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.

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The case of processing of copper electrorefining anode slime a review

processing of copper electrorefining anode slime request 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 (pgmtellurium, from copper anode slime to high purity producttellurium is a rare metalloid that is vastly produced from copper anode slime, which is a byproduct of the copper electrorefining process. choosing the proper recovery method strongly depends on the slimes composition, mineralogy, and tellurium concentration. in addition, correctly selecting the right method of leaching, purification, and precipitation in economic and environmental processingextracting silver from anode slime after lead and09) published a review of anode slime processing, including anode slime leaching by sulfuric acid. research on g, silver and copper separation had been accomplished by bard and sobral (08) using hydrochloric acid solution adding sodium hypochlorite solutions as an oxidizing agent. the gand silver can be separated from the after slimechallenges in the electrolytic refining of silverpass into the anode slime. the anode slime is collected in anode bags around the dissolving anode. under optimal conditions, only fine silver (purity > 99.9 %) will deposit on the cathode. an advantageous condition for the electrolytic deposition of ag is the large potential difference between ag andcopper electrolysis refining plant, purification of copperdec 07, · the refining anodes taken out from the refining furnace is changed into electrolytic copper with purity of 99.99% through an electrolysis process during electrolysis, copper (ii) ions leave the impure copper anode and since they are positive, migrating to the negative cathode. from time to time, the pure copper is scraped off the cathode.electrolytic refining silver g copperfeb 26, · the sludge of cementcopper from this tank is washed and drained in wooden tubs with filter bottoms, whence it is transferred to other filtertubs and allowed to airdry, and then is melted down and cast into anodes for refining. the copper anodes contain lead derived from the silverbullion, metals of the platinum, group derived from the gelectrolytic refining meaning, electrorefining of copperelectrolytic refining is a process of refining a metal (mainly copper) by the process of electrolysis. as far as the mechanism of the process is concerned, during electrolysis, a large chunk or slab of impure metal is used as the anode with a thin strip of pure metal at the cathode. in this setup, an electrolyte (metal salt aqueous solutionfigure 10 from tellurium, from copper anode slime to hightellurium is a rare metalloid that is vastly produced from copper anode slime, which is a byproduct of the copper electrorefining process. choosing the proper recovery method strongly depends on the slimes composition, mineralogy, and tellurium concentration.processing of copper electrorefining anode slime request dec 01, 09· anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. it generally contains cu, ni,estimated reading time 7 minselectrorefining of copperelectrorefining 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, i.e. the electrode reactions are, at the anode m mn+ + neand at the cathode mn+ + ne mcharacterization of adherent anode slimes inthe following subchapters present in more detail the copper electorefining process and different factors affecting the adherent anode slimes. 2.1 the electrorefining of copper in the electrorefining process, copper is dissolved electrochemically from the impure copper anode into the electrolyte and then electrodeposited as pure copper.a novel process for recovery of te and se from copperstudied and the cementation process tested in the laboratory. in this paper, the test results are presented and the process chemistry is discussed. keywords leaching, floatation, selenium, tellurium, copper. introduction during the electrorefining of copper anodes, the insoluble components, anode slimes,ultra fast ultrasoundassisted decopperization from coppernov 09, · an ultra fast decopperization method from the anode slime has been developed based on the ultrasoundassisted leaching. the effects of parameters such as ultrasound power, leaching time, sulfuric acid concentration and liquid/solid ratio were investigated. under optimum conditions, the concentration of cu in residue was only 2.64%.

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