Optimization of physicochemical parameters of pyrite flotation

Tailings issued from polymetallic ore flotation of Chaabat el-Hamra mine contain sulfides such as Galena (PbS), Pyrite (FeS 2 ) and Chalcopyrite (CuFeS 2 ). They present environmental threats such as the acid mine drainage. Chemical analysis showed that the major element of these tailings is Pyrite....

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Bibliographic Details
Published in:Journal of mining science 2015-11, Vol.51 (6), p.1262-1270
Main Authors: Chettibi, M., Boutrid, A., Laraba, A., Abramov, A. A.
Format: Article
Language:English
Subjects:
Acid mine drainage
Adsorption
Analysis
Earth and Environmental Science
Earth Sciences
Flotation
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mineral Dressing
Mineral Resources
Optimization
Parameters
Pyrite
Sulfides
Surface chemistry
Tailings
Thermodynamics
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Summary:Tailings issued from polymetallic ore flotation of Chaabat el-Hamra mine contain sulfides such as Galena (PbS), Pyrite (FeS 2 ) and Chalcopyrite (CuFeS 2 ). They present environmental threats such as the acid mine drainage. Chemical analysis showed that the major element of these tailings is Pyrite. The processing of the latter eliminates much of the sulfur. The flotation is based on the difference of the minerals surface properties such as hydrophobicity, hydrophility, addition of appropriate reagents and their adhesion to bubbles. In this work, we propose to use the method of thermodynamic analysis in view of studying and identifying the main physicochemical parameters of flotation, such as the thermodynamic potential and pH, which play a main role in collector adsorption on the mineral surface. The obtained results show that the optimal pH value is 7, in this condition; we can get an optimal adsorption and maximum recovery of Pyrite up to 90%.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739115060576