某浮磷尾矿综合回收钛铁矿试验研究

针对某浮磷尾矿的性质特点,确定采用"弱磁除铁—强磁预选—钛浮选"综合回收工艺流程。结果表明:物料经过Slon-750型脉动高梯度强磁机两段预选,达到钛浮选入选品位要求;采用EM121作为钛铁矿的捕收剂,经过一粗一扫四精,可以得到钛精矿TiO2品位为45.97%、回收率为51.50%的技术指标。

Experimental Research on Recovery of Ilmenite from the Tailings of Floated Phosphorus

According to the characteristics of the tailings of floated phosphorus,author is determined that a technological flowsheet of "removing iron by low-intensity magnetic separation-pre-concentration by high-intensity magnetic separation-flotation of titanium" is adopted.The test results showed that after two-stage pre-concentration by slon-750 pulsating high-gradient magnetic separator,the material can reach the requirements for milling grade of titanium flotation.Using EM121 reagent developed by our institute as a collector of titanium flotation,by means of "one-stage roughing flotation-one-stage scavaning flotation-four cleaning flotation",the qualified ilmenite concentrate of 45.97% TiO2 is produced with recovery of 51.50%.