四种阳离子捕收剂对赤铁矿和石英浮选行为的影响

以赤铁矿和石英为试验原料，探究了十二胺、十二烷基三甲基氯化铵、GE-609与N-十二烷基乙二胺四种阳离子捕收剂对两种矿物浮选行为的影响。结果表明，四种阳离子捕收剂对石英和赤铁矿均有一定的捕收作用，且对石英的捕收能力均强于赤铁矿；在四种捕收剂体系中，淀粉对赤铁矿均有明显的抑制作用，对于石英，淀粉除在N-十二烷基乙二胺体系中对石英一定抑制作用外，在其他三种捕收剂体系中淀粉对石英浮选影响较小。混合矿浮选试验表明，与十二胺和N-十二烷基乙二胺相比，十二烷基三甲基氯化铵和GE-609作为捕收剂时，精矿Fe品位和Fe回收率指标相对较优，与单矿物浮选结果一致。 

Effect of Four Kinds of Cationic Collectors on Flotation of Hematite and Quartz

In this paper, the effects of four cationic collectors (Dodecyl amine, Dodecyl trimethyl ammonium chloride, GE-609, N-Laurel ethanediamine) on the flotation behaviors of hematite and quartz were investigated. The results showed that the four cationic collectors all have a certain collection effect on quartz and hematite, while their abilities to capture quartz were stronger than hematite. In the four collector systems, starch had an obvious inhibitory effect on hematite. For quartz, in addition to the inhibitory effect of starch on the quartz in the N-dodecylethylenediamine system, the starch has less effect on quartz flotation in the other three collector systems. The mixed minerals flotation test results showed that compared with dodecyl amine and N-Laurel ethanediamine, the concentrate Fe grade and Fe recovery indexes were relatively better with the collectors of dodecyl trimethyl ammonium chloride and GE-609. The results of the mixed minerals flotation test and the single mineral flotation was consistent.