A simple method for the recovery of selenium from copper anode slime sample using alkaline roasting process
Journal Title: International Journal of new Chemistry - Year 2019, Vol 6, Issue 2
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%.
Authors and Affiliations
Hoda Pasdar; Bahare Hedayati Saghavaz; Masoomeh Masoumi
Quantum chemistry studies on reactivity of the 2-Amino-3-(3,4-Dihydroxyphenyl)Propanoic Aciddrug linked to to C60
In this research at the first 2-amino-3-(3,4-dihydroxyphenyl) propanoic aciddrug drug and its fullerene derivative were optimized. NBO calculations and NMR for the complexes were carried out at the B3LYP/6-31G*quantum c...
Investigation of Fullerene effect on reactivity of 2-amino-3-(3,4-dihydroxyphenyl)-2-methyl-propanoic acid with NMR parameters
In this research at the first 2-amino-3-(3,4-dihydroxyphenyl)-2-methyl-propanoic acid drug and its fullerene derivative were optimized. NMR calculations for the complexes were carried out at the B3LYP/6-31G*quantum chem...
Nitration Ortho Dihydroxyl Benzene (Catechol) Using Bismuth Nitrate on the Solid Phase Montmorillonite
Nitro catechols via 2 hydroxyl group and a nitro group have a wide range of functions including reagents form stable complexes with more than 40 elements in the fields of analytical chemistry, biochemistry, coordination...
Theoretical study of chemical properties of Fulleromethyldopa and derivatives
In recent years, many studies have been done on structure of fullerene derivatives as medicine nano-carrier compounds. In this work mechanical quantum calculations in theory level of B3lyp/6-31g* and HF/6-31G in the ga...
The effect of Glutamine on conductivity and energetic properties in Graphene: A DFT studies
Using the Computational methods, the interaction effect of Glutamine Amino acid on Graphene was investigated. For this purpose, the Density Functional Theory) DFT (in the ground state of 6-31G was used, and the interact...