Selective flotation of silicates and Ca-bearing minerals: The role of non-ionic reagent on cationic flotation

An investigation into the flotation of muscovite with an amine collector and calcium lignin sulfonate depressant

“…Many papers on the application of collectors in the flotation of muscovite have been published, focusing primarily on cationic amine collectors [5,22,24,[31][32][33][34][35][36][37][38][39][40][41][42]. Electrostatic attraction is the basic mechanism involved in the adsorption of amines onto mineral surfaces, and thus it has been suggested that at higher pH values greater adsorption is observed, however increasing the pH to a point where the amine solubility limit is exceeded may be detrimental to flotation [36,39,43].…”

Flotation and adsorption of a new collector α-Bromodecanoic acid on quartz surface

“…Dissociation of ASiAOH to ASiAOA sites and hydration of ASi + sites to ASiÁ Á ÁOH will make quartz to acquire negative charge with the increase of OH À ions in solution (Fuerstenau and Pradip, 2005). With the increasing of pulp pH, more OH À ions adsorb onto quartz's surface that results in the decreasing of zeta potential Filippov et al, 2012;Farahat et al, 2009). While, the adsorption capacity of negative charge OH À ions onto quartz surface will reach a saturation point (pH = 10).…”

Influence of bromine modification on collecting property of lauric acid

“…Dissociation of ASiAOH to ASiAOA sites and hydration of ASi + sites to ASiÁ Á ÁOH will make quartz to acquire negative charge with the increase of OH À ions in solution (Fuerstenau and Pradip, 2005;Cao et al, 2013). As the pulp pH increased, more OH À ions adsorb onto quartz's surface that results in the decreasing of zeta potential Filippov et al, 2012;Farahat et al, 2009). While, continually adding OH À ions (pH > 10), the zeta potential of quartz particles will increase instead of decreasing due to the shielding effect of the negatively charged electrons (OH À ions).…”