Journal of Surface Science and Technology

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Adsorption of Thiol Collectors on Chalcopyrite


Affiliations
1 Division of Inorganic Chemistry, Department of Chemical and Metallurgical Engineering, Lule University of Technology, S-97187, Lulea, Sweden
     

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Adsorption of diethyldithiocarbamate and ethylxanthate on chalcopyrite mineral surface was studied by static bed adsorption method. The qualitative nature of surface species was examined by selective solvent extraction and UV-visible spectroscopic technique. The results clearly indicate that the interaction between surface metal ions and thiols is chemical in nature. As a result of chemical interaction of ligand molecules, metal ions from mineral surface are dislodged from the lattice and precipitates of metal-ligand complexes were formed on the surface, Surface complexes were found to be identical to that of bulk complexes with metal-to-Iigand ratio of 1:2.

Keywords

Adsorption, Static Bed, Chalcopyrite, Diethyldithiocarbamate, Ethylxanthate.
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  • Adsorption of Thiol Collectors on Chalcopyrite

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Authors

G. Bhaskar Raju
Division of Inorganic Chemistry, Department of Chemical and Metallurgical Engineering, Lule University of Technology, S-97187, Lulea, Sweden
Willis Forsling
Division of Inorganic Chemistry, Department of Chemical and Metallurgical Engineering, Lule University of Technology, S-97187, Lulea, Sweden

Abstract


Adsorption of diethyldithiocarbamate and ethylxanthate on chalcopyrite mineral surface was studied by static bed adsorption method. The qualitative nature of surface species was examined by selective solvent extraction and UV-visible spectroscopic technique. The results clearly indicate that the interaction between surface metal ions and thiols is chemical in nature. As a result of chemical interaction of ligand molecules, metal ions from mineral surface are dislodged from the lattice and precipitates of metal-ligand complexes were formed on the surface, Surface complexes were found to be identical to that of bulk complexes with metal-to-Iigand ratio of 1:2.

Keywords


Adsorption, Static Bed, Chalcopyrite, Diethyldithiocarbamate, Ethylxanthate.