slime from copper electrorefining process

v116n12a9 Extraction of copper and gold from anode slime

recovery of copper and gold from anode slime by solvent extraction and leaching This process has to be carried out at the optimum operating conditions and also economically for possible scale-up 268542-1923 9 86 7 1 The copper anode slime of Sarcheshmeh Copper Complex was used in this study and the reagents sulphuric acid 88...

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CHARACTERIZATION OF ADHERENT ANODE SLIMES IN

the electrodeposited copper on the cathodes is greater than 99997 Schlesinger et al 2011 A flow sheet of the electrorefining process of copper is presented in figure2 The elec-trorefining process starts with the loading of the electrodes into the cell The anodes and...

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Processing of copper electrorefining anode slime a review

Jul 18 2013 0183 32 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...

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EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND GOLD

Electrorefining of Copper...

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Copper Anode Slime Recovery

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 ie pyrometallurgy and...

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US5271909A

A method of increasing the extraction of tellurium from copper electrorefining slime comprises leaching the slime with dilute sulphuric acid in a reactor under a partial oxygen pressure of up to 150 psi and at an elevated temperature between about 100 176 and 200 176 C until copper nickel and substantially all of the tellurium is dissolved thereby forming a leach slurry and contacting the...

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Electrowinning

Electrowinning is the oldest industrial electrolytic process The English chemist Humphry Davy obtained sodium metal in elemental form for the first time in 1807 by the electrolysis of molten sodium hydroxide Electrorefining of copper was first demonstrated experimentally by...

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Design guide for slurry piping in copper electrorefining

Byproduct from electrorefining is anode slime which contains precious metals like gold and platinum and it is sensible to process it and recover valuable metals In copper electrorefining plant anode slime is processed as slurry from anode slime electrorefining cells...

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Electrolytic Refining Silver

Table of ContentsSilver RefiningHow to Refine Silver with ElectrolysisSilver Refining EquipmentOperation and ProductsGold RefiningRefining Gold with ElectricityGold Refining EquipmentOperations and ProductsCopper RefiningProcess for the Electrolytic Refining of CopperMint Processes The refinery takes the bullion purchased by the receiving department and carrying more than 200 parts of...

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US5939042A

The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slim The method comprises maintaining a molar ratio Ag/Se Ag/S or Ag/Se S at a value of about 2 or less in the slimes during leaching thereof in an autoclave The excess of selenium and/or sulphur allows the formation of Ag 2 Se or Ag 2 S which remains...

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Copper Electrolysis Refining Plant Purification of Copper

How does it work Copper electrorefining produces copper essentially free of impurities and separates valuable impurities such as gold and silver from copper for recover as by products The process for electrorefining copper is typical of those carried out in aqueous solution...

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Mineralogical Characteristics of Copper Electrorefining

Apr 02 2004 0183 32 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...

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Settling properties of copper electrorefining anode slimes

The settling properties of anode slime in copper electrorefining have crucial effect on copper cathode quality Anode slime settling is affected by electrolyte composition and temperature...

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The treatment of copper refinery anode slimes SpringerLink

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 slim...

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Tellurium from Copper Anode Slime to High Purity Product

Tellurium is a rare metalloid that is vastly produced from copper anode slime which is a by-product 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 processing...

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Electrorefining Chemistry Tutorial

Electrorefining refers to the process of using electrolysis to increase the purity of a metal extracted from its ore During the electrorefining stage of copper production a series of impure copper anodes and thin starter sheet cathodes such as thin copper foil are suspended in a tank These will be found in the slime at the bottom of...

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Copper Electrorefining Plant Design Configuration

Copper electrorefining mainly produce LME Cu-CATH-1 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 and saving installation instruction costOptimizing your return on investment...

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Electrowinning Copper Chemistry Tutorial

Electrowinning Copper Key Concepts Electrowinning refers to the process of using electrolysis to extract a metallic element from the compounds in its ore Copper occurs on Earth both as native copper the uncombined element Cu and in ores copper compounds or mixtures of compounds from which copper metal can be extracted profitably...

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HYDROMETALLURGICAL PROCESSING OF ANODE SLIMES

eliminating the residue from the main process of electrorefining at the same time Because of uneven anodic dissolution a large amount of tin particles drops from the anode surface thus the formed slime layer contains metallic tin which can be dissolved in boiling and concentrated hydrochloric acid 1 although it may take considerable time If...

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DEVELOPMENT OF CHARACTERIZATION METHODS FOR

efficiency of copper electrorefining Declining concentrate grades cause larger impurity levels in anodes thus creating larger quantities of slimes in the refining process In order to investigate the characterization methods for adherent anode slimes in copper electrorefining experiments were conducted for the Boliden...

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Tellurium extraction from copper electrorefining slimes

Copper and lead electrorefining slimes are a major source of tellurium Tellurium is a nuisance element that must be removed to recover precious metals from copper slim For the overall slime treatment process efficiency it is important to extract as much tellurium as possible Such extraction is typically carried out in autoclav...

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LEACHING BEHAVIOR OF THE ANODE SLIME GENERATED BY

and pure tin can be recovered by electrorefining in HCl media 2 3 Due to the higher electrode potentials silver and copper are expected to accumulate undissolved in a slime layer formed at the anode surface containing a large amount of metallic particles fallen out of the anode substrate as a result of uneven dissolution...

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EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND

Anode slime a byproduct from the process of electrorefiningcopper into the copper cathode contains Anode slime is a byproduct of copper electrorefining process It contains copper lead gold silver selenium tellurium arsenic nickel platinum silica and other elements In...

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Copper Refining Electrolyte and Slime Processing

Copper electro-refining Cu-ER is the principal method for producing gt 70 of high or 9997 pure copper cathodes from 97-99 pure blister/fire refined-scrap copper anod 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 co-dissolved...

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Anode Slime Gained During Electrolysis Process of

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 electro-refining process the anode slime has been gained as secondary product...

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EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND

Anode 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 in...

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Removal of antimony and bismuth from copper

During the electrorefining of copper anodes of typically 98-99 copper are dissolved into an electrolyte consisting of 130-220 g/L H 2 SO 4 then plated onto a cathode either a copper starter sheet or some other non-reactive metal like stainless steel or titanium as a 9999 pure product...

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EXTRACTION OF GOLD SILVER AND COPPER FROM THE COPPER

inproceedings Bard2008EXTRACTIONOG title= EXTRACTION OF GOLD SILVER AND COPPER FROM THE COPPER ELECTROREFINING ANODE SLIME SEPARATION OF THE METALS author= G N Bard and L Sobral year= 2008 G N Bard L Sobral Published 2008 Copper sulphides Concentrates from the flotation process...

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Processing of copper electrorefining anode slime Request PDF

Copper anode slimes the by-product 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...

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Anode Slimes Konkola Copper Mines Plc

During the electrolysis process pure copper is deposited on cathode plates and impurities which are soluble fall to the bottom of the cell as anode slimes or sludge Precious metals Ag Pt Pd can be extracted from the anode sludge created by the electro-refining process Copper concentrates can also contain precious metals like gold and silver...

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