Frother/collector interactions in thin froth films and flotation

摘要: Abstract Aqueous thin film studies and surface tension measurements on a mixed surfactant system consisting of poly(ethylene oxide) (PEO), which was chosen as model flotation frother, potassium ethyl xanthate, collector, enable the interaction between two surfactants at air/solution interface to be elucidated. For containing non-ionic charged addition low concentrations xanthate acted common electrolyte reduced thickness film, inducing rupture. However, high collector concentrations, negatively found interact with PEO causing an accumulation negative charge interface. Higher frother were necessary produce non-rupturing films upon increasing concentration.