The Effects of Calcium Ions on the Flotation of Sillimanite Using Dodecylammonium Chloride
AbstractThe effects of Ca2+ ions on the flotation of sillimanite using dodecylammonium chloride as a collector were investigated by micro-flotation tests, zeta potential measurements, solution chemistry analysis and molecular dynamics (MD) simulation. The micro-flotation results indicated that Ca2+ ions remarkably inhibit the flotation of sillimanite in the pH range of 2.0–9.0. The point of zero charge (PZC) of sillimanite changed from 5.4 to 6.1 with the addition of Ca2+ ions. Meanwhile, the calculated concentration of RNH3+ in the sillimanite interface layer decreased in the presence of Ca2+ ions. The results of MD simulation revealed that Ca2+ ions have strong binding energy with the sillimanite (010) surface, and the binding energy of RNH3+ with sillimanite (010) surface reduced in the presence of Ca2+ ions. The conclusions drawn from the computations are in good agreement with the experimental results. View Full-Text
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Chen, Z.; Ren, Z.; Gao, H.; Lu, J.; Jin, J.; Min, F. The Effects of Calcium Ions on the Flotation of Sillimanite Using Dodecylammonium Chloride. Minerals 2017, 7, 28.
Chen Z, Ren Z, Gao H, Lu J, Jin J, Min F. The Effects of Calcium Ions on the Flotation of Sillimanite Using Dodecylammonium Chloride. Minerals. 2017; 7(2):28.Chicago/Turabian Style
Chen, Zhijie; Ren, Zijie; Gao, Huimin; Lu, Jia; Jin, Junxun; Min, Fanfei. 2017. "The Effects of Calcium Ions on the Flotation of Sillimanite Using Dodecylammonium Chloride." Minerals 7, no. 2: 28.