Effect of Calcium Ion on the Flotation of Fluorite and Calcite Using Sodium Oleate as Collector and Tannic Acid as Depressant

In the flotation of semi-soluble minerals such as calcite and fluorite, Ca2+ is one common dissolved components influencing collector adsorption behaviors on mineral surfaces. However, there very limited research focusing how affects separation fluorite calcite. study, with sodium oleate (NaOL) a tannic acid (TA) depressant, test, zeta potential measurement, experiment in presence were conducted. Flotation tests indicated that Ca2+, both significantly depressed by TA, leading to difficulty two minerals. It was also found depression effect minimized high concentration NaOL. Zeta measurement results are consistent results, revealing it only low NaOL TA Ca2+. Specifically, NaOL, adsorbed surface due preferential interaction between solution shortage effective solution. displaced excessive solution; hence, recovered. contrast, always hinders regardless absence depressing The study presented may mitigate negative improve from