十二烷基磺酸钠浮选赤铁矿的研究

Study of the Sodium Dodecyl Sulfonate on Hematite Flotation

研究了十二烷基磺酸钠（SDS）作捕收剂的时,赤铁矿的可浮性。考察了pH值、钙离子、氟化物和六偏磷酸钠对赤铁矿浮选的影响。研究结果表明：当SDS做捕收剂时,赤铁矿浮选的最佳pH=3-4,加入氟化钠有利于浮选。而钙离子、六偏磷酸钠对赤铁矿浮选起到抑制作用。氟硅酸钠对浮选有一定的效果。红外光谱分析显示,SDS的捕收作用是静电力吸附。

This paper studies the flotation tests of hematite using Sodium Dodecyl Sulfonate （SDS） as collector, and the following effect factors as pH, Ca^2＋ , NaF, Na2 SiF6 and （NaPO3 ）6 are investigated. In the process of hematite flotation using SDS as anionic collector, the optimum pH value lies between 3 - 4, the concentration increase of NaF can activate the hematite flotation, however Ca^2＋ and（ NaPO3 ）6 can depress the chloride flotation. FT-IR analysis displays that the force of the SDS collector is electrostatic adsorption.