Title of article :
A simple method for the recovery of selenium from copper anode slime sample using alkaline roasting process
Author/Authors :
Pasdar ، Hoda - Islamic Azad University, North Tehran Branch , Pasdar ، Hoda - Islamic Azad University, North Tehran Branch , Hedayati Saghavaz ، Bahare - Islamic Azad University, North Tehran Branch , Hedayati Saghavaz ، Bahare - Islamic Azad University, North Tehran Branch , Masoumi ، Masoomeh - Islamic Azad University, North Tehran Branch , Masoumi ، Masoomeh - Islamic Azad University, North Tehran Branch
Abstract :
The recovery of selenium from Iranian sar-cheshmeh copper anode slime has been investigated. Copper anode slimes are containing varying precious metals, such as: gold, silver, selenium and tellurium. They are being extracted as a by-product in the production process. Arsenic and antimony that present in anode slimes dissolved in 0.4 M KOH. Then, the alkaline roasting of anode slimes in the presence of Na2CO3 solubilized selenium. Various parameters such as time and temperature of alkaline roasting were studied. The results indicated that the optimum condition for the temperature and time of roasting found to be T=600C and time= 8 h respectively, and that optimum recovery of selenium was 98%.
Keywords :
Selenium , Recovery , Sar , cheshmeh , Copper anode slimes , Alkaline roasting
Journal title :
International Journal of new Chemistry
Journal title :
International Journal of new Chemistry
