Electroflotation of ultrafine chalcopyrite particles with sodium oleate collector
Embargo Lift Date
MetadataShow full item record
The electroflotation behaviour of ultrafine chalcopyrite particles was investigated using a mechanically agitated cell. The use of sodium oleate as collector proved effective in the flotation of particles of average size of 5 µm. The results showed that chalcopyrite recovery increases with increasing pulp pH, and current density, but decreases with increasing pulp density. The successful flotation of chalcopyrite with oleate might be attributed to its electrochemical surface oxidation, resulting in the formation of cupric and ferric oxide species. Chemisorption of oleate ions onto oxidized chalcopyrite surface is suggested to be the main cause for the increase in chalcopyrite recovery.
Showing items related by title, author, creator and subject.
Eksteen, Jacques; Oraby, E.; Tanda, B. (2017)A conceptual flowsheet is proposed and the main processing steps are evaluated for the alkaline processing of chalcopyrite where glycine is the complexing agent. Glycine is utilised in an oxidising, alkaline environment ...
Liu, W.; Moran, Chris; Vink, S. (2013)There is a general trend towards more responsible water management across the minerals industry. Two important strategies have been implementation of water reuse and sourcing of alternative water supplies that otherwise ...
Liu, W.; Moran, Chris; Vink, S. (2013)Bacteria-containing water is being increasingly accessed by the minerals industry as an alternative water source to improve water efficiency. Water-borne bacteria have been shown to negatively affect the efficiency of ...