Abstract:  In order to test the performance of DN-6 at normal temperature, a new collector developed by Northeastern University, the flotation test of single mineral was carried out, and the mechanism of the collector on the surface of fluorapatite was studied by Zeta potential detection and Fourier transform infrared spectroscopy. The results of single mineral flotation test showed that under the condition of pulp pH 7.6, temperature 28 ℃, and DN-6 dosage 166.7 mg/L, the flotation recovery of fluoapatite by collector DN-6 can reach 97.59%. Zeta potential and FTIR analysis showed that DN-6 had bonding adsorption on the fluorapatite surface when pH＜4.

Key words:  , Apatite, DN-6, Flotation, Collector, Interaction Mechanism