Electrochemical behaviour of chalcopyrite in the absence and presence of dithiophosphate

Date

2005-02-07

Author

Güler, Taki
Hiçyılmaz, Cahit
Gökağaç, Gülsün
Ekmekçi, Zafir

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Electrochemical behaviour of chalcopyrite was investigated in collectorless condition and in the presence of dithiophosphate (DTP), which is a selective collector for chalcopyrite, by cyclic voltammetry (CV) study. Diffuse Reflectance Infrared Fourier Transformation (DRIFT) spectroscopy was employed to identify surface species of DTP at chalcopyrite surface. CV tests established the certain degree of irreversibility in the absence of DTP possibly due to preferential dissolution of iron ions in slightly acid solution, and irreversible surface coverage by iron hydroxides in neutral and alkaline solutions. Cu(DTP)+(DTP)(2) formation as major DTP-compounds on chalcopyrite in slightly acid and neutral conditions was estimated from DRIFT spectroscopy study. However, heavy surface oxidation inhibited the identification of collector species in alkaline condition.

Subject Keywords

Geotechnical Engineering and Engineering Geology, Geochemistry and Petrology

URI

https://hdl.handle.net/11511/67753

Journal

INTERNATIONAL JOURNAL OF MINERAL PROCESSING

DOI

https://doi.org/10.1016/j.minpro.2004.08.009

Collections

Department of Mining Engineering, Article

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Citation Formats

T. Güler, C. Hiçyılmaz, G. Gökağaç, and Z. Ekmekçi, “Electrochemical behaviour of chalcopyrite in the absence and presence of dithiophosphate,” INTERNATIONAL JOURNAL OF MINERAL PROCESSING, pp. 217–228, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67753.