copper electrorefining process anode slime
Copper extraction Wikipedia
The blister copper is put into an anode furnace, a furnace that refines the blister copper to anodegrade copper in two stages by removing most of the remaining sulfur and iron, and then removing oxygen introduced during the first stage.
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electrorefining process of copper
Effect of thermal treatment of copper anodes on . Thermal treatment of copper anodes has a good effect on the specific energy required for the electrorefining process where it is about kWh/kg when quenched anode in water is electrolyzed, while it is about kWh/kg when untreated anode was electrorefined. Get Price
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MINORELEMENTS IN COPPER SMELTINGAND .
ii A description and brief analysis of major techniques used industrially for control and removal of minor elements was performed. Feed pretreatments, removal fram molten matte or copper, dust bleed and treatment, anode doping and electrolyte purification techniques were considered.
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Tellurium extraction from copper electrorefining slimes ...
Aug 17, 1999· The present invention relates to a method for extracting tellurium from telluriumcontaining materials, and more particularly copper electrorefining slime. BACKGROUND OF THE INVENTION. In conventional electrorefining of copper, a copper anode made of about % copper is placed in an electrolyte, typically copper sulphate/sulphuric acid.
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ANODE SLIME GAINED DURING ELECTROLYTIC REFINING PROCESS .
177 CONCLUSION 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.
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What is an anode slime?
An anode slime is a sediment which settles at the bottom of a copper electrorefining cell, which is rich in silver, gold, selenium and tellurium.
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AN IMPROVED PROCESS FOR EXTRACTION OF COPPER, .
This invention is particularly relates to an improved leaching process of anode slime of copper electrorefining plant in sulphuric acid medium for extraction of valuable metals like copper, selenium, tellurium and gold. Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during the electrorefining of copper.
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Copper Anode Slime PyroMetallurgy Process
After pulped with concentrated H 2 SO 4, Copper anode slime will be fed into sulphation roaster. Through high temperature calcining, SeO 2 absorption, basic solution scrubber, we can get calcine, crude Se, waste acid solution, and clean offgas.
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PROCESS FOR EXTRACTING NOBLE METALS FROM ANODE SLIME ...
May 25, 2017· A process for extracting noble metals from anode slime, wherein the process comprises the steps of: mixing sodium carbonate, quartz and coke powder and impurityremoved anode slime, and subjecting the mixture to smelting and converting to obtain alloys of noble metals.
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Case Study of emew Silver Process versus Conventional ...
The gold slimes recovered from the spent silver anodes are melted into impure gold anodes for further refining into pure gold, while the spent silver anodes (typically 1520% of the original anode weight) are remelted into fresh anodes to start the electrorefining process anew.
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Copper Smelting and Refining Process | Pan Pacific Copper
Anode plates and stainless steel cathode plates are alternately set into the electrorefining cell, where a proper level of DC current is supplied. Dissolved copper from the anode is electrolytically deposited on the stainless steel cathode plate. ... Slime generated in the electrolytic refining process contains precious and rare metals such as ...
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USA 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 order to sulfate the nickel and the possible copper.
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electrochemistry Silver electrorefining Chemistry ...
1 Answer. It depeds on the acid. If it is HCl then you will get Wohlwill Process only the silver will be not disolved. So baisiclly what you want.
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HYDROMETALLURGICAL PROCESSING OF ANODE SLIMES .
The examined anode slime material was prepared by electrolytic refining of anodes cast from a tin alloy enriched in copper and silver by fractional crystallization of the ordinary SnAgCu (SAC alloy) bath.
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Furnaces for the copper industry ANDRITZ GROUP
A central feature of the Top Blown Rotary Converter (TBRC) is the constantly high melting and refining efficiency. Typical input materials include copper scrap of different qualities, precious metalcontaining alloys from lead production, and anode slime from copper electrolysis.
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cost of copper electrorefining anode slime processing
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 .
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Factors affecting the electrochemical behaviour of copper ...
Cyclic voltammetry (CV) was used to characterize the behaviour of copper anodes during electrorefining. The method involved cycling the anode potential at a rate of 2 m V s 1 between the open circuit potential of 0 . 3 5 V and vs mercury/mercurous sulphate (MSE) reference electrode.
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Recovery of Gold Ions from Copper Anode Slime by Means of ...
Copper anodic slime which is an insoluble residue of copper electrorefining process contains valuable elements such as gold, silver, selenium and tellurium and is a byproduct of copper ingot production. Copper anodic slime contains % gold approximately. The common methods to extract gold from copper anodic slime are hydrometallurgical ...
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