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Paper Information

Title: 

THE EFFECT OF SULPHURIC ACID CONCENTRATION ON THE REMOVAL OF COPPER FROM COPPER ANODE SLIME

Type: PAPER
Author(s): ABD ELAHI MAHMOUD*,KHODADADI AHMAD,HASHEMZADEH MOHSEN
 
 *TARBIAT MODARRES UNIVERSITY
 
Name of Seminar: PROCEEDING OF IRANIAN MINING ENGINEERING CONFERENCE
Type of Seminar:  CONFERENCE
Sponsor:  IRANIAN SOCIETY OF MINING ENGINEERING
Date:  2005Volume 1
 
 
Abstract: 

During the electrolytic copper refinery, anodic copper is dissolved and deposited on the cathode. The copper anode slimes are made up of those components of anodes which are not soluble in the electrolyte. They contain gold, silver, selenium, tellurium and the other metals such as copper, lead, nickel and etc. There are several hydrometallurgical and pyrometallurgical methods to recover valuable elements. As a route, initially, copper is removed and returned back to the electrolysis process and the valuable elements are then recovered. One of the decoppering methods is sulphuric acid leaching. The concentration of sulphuric acid is one of the important parameters which affect on the copper removal. Anode slimes were leached in different sulphuric acid concentrations. The best concentration of sulphuric acid was determined under experimental conditions (temperature and time). Finally, 92% of copper was removed at 85°C for 30 minutes by 5 M sulphuric acid.

 
Keyword(s): COPPER ANODE SLIMES, HYDROMETALLURGY, PYROMETALLURGY, LEACHING, ELECTROLYTIC REFINERY, ELECTROLYSIS
 
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