都龙矿区细粒锡石浮选实验研究

Experimental Research on Flotation of Fine-grain Cassiterite from Dulong Mine

为了提高细粒锡石的回收率,对都龙矿区细粒锡石进行了浮选实验研究。在实验研究的基础上进行了工业试验,结果表明采用预先脱硫+除铁+三段脱泥+二次脱硫流程,处理含锡0.3%～0.5%的原料,可得到含锡4%～5%、回收率大于80%的锡粗精矿。新型捕收剂GY-C3对都龙矿区细粒锡石具有较好的回收效果。

In order to improve the recovery of fine eassiterite, flotation tests on fine-grain eassiterite from Dulong Mine were carried out. Commercial tests were conducted based on the laboratory study, and the results show that, adopting a flowsheet comprised of pre-desulfurization, iron removing, three stages of desliming, and two stages of desulfurization, a rough concentrate with tin grade of 4% -5% and recovery of 80% , respectively, can be produced from a raw ore with a tin grade of 0.3 % -0.5 % , and the new collector GY-C3 shows excellent performance in recovering fine-grain eassiterite from Dulong Mine.