51. Surface-enhanced Raman scattering spectroelectrochemical studies of mineral processing.
- Author
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Hope G.A., Watling K., Woods R., Hope G.A., Watling K., and Woods R.
- Abstract
A number of applications of in-situ surface-enhanced Raman scattering (SERS) spectroscopy are discussed. The adsorption of different collectors during flotation has been characterised and the dissolution of silver in basic solutions containing cyanide has been shown to be inhibited by 2-mercaptobenzothiazole (MBT) and diisobutyl dithiophosphinate as a result of collector chemisorption. In hydrometallurgy, SERS has been applied to the investigation of gold leaching: changes in surface species as potential is varied during cyanidation have been identified from SERS spectra recorded in real time on voltammograms. In electrometallurgy, SERS investigations of copper electrodeposition from sulphuric acid solutions have shown that a transient surface sulphate species is involved in the depositional process., A number of applications of in-situ surface-enhanced Raman scattering (SERS) spectroscopy are discussed. The adsorption of different collectors during flotation has been characterised and the dissolution of silver in basic solutions containing cyanide has been shown to be inhibited by 2-mercaptobenzothiazole (MBT) and diisobutyl dithiophosphinate as a result of collector chemisorption. In hydrometallurgy, SERS has been applied to the investigation of gold leaching: changes in surface species as potential is varied during cyanidation have been identified from SERS spectra recorded in real time on voltammograms. In electrometallurgy, SERS investigations of copper electrodeposition from sulphuric acid solutions have shown that a transient surface sulphate species is involved in the depositional process. more...