攀枝花超细粒级钛铁矿磁选富集方法

Magnetic separation and enrichment method of ultrafine-grained vanadium-bearing titanomagnetite in Panxi region

攀西地区钒钛磁铁矿中钛铁矿的回收普遍采用"强磁-浮选"作为原则工艺,此选钛工艺技术较为成熟、有一定的适应性,但-38μm微细粒级钛铁矿尚未实现有效回收,大量的-38μm粒级物料作为矿泥直接丢弃,造成选钛厂总回收率低、资源严重浪费。为提高钛铁矿的回收率,采用新型ZQS高梯度磁选机,探索了攀钢本部矿样、秀水河矿样、红格矿样三种细粒级试样的磁选富集效果,试验证明新型ZQS高梯度磁选机能高效回收超细粒级钛铁矿,精矿TiO_(2)品位和回收率均较高,三种矿样的-0.038~0.019 mm粒级经一次磁选回收率分别达到了86.80%、82.26%、77.78%。此磁选技术工艺简单,具有良好的工业应用前景。

The recovery of ilmenite from vanadium titanomagnetite in Panxi area generally adopts"high-intensity magnetic flotation"as the principle process.This process technology is relatively mature and has certain adaptability,but the-38μm fine ilmenite has not been effectively recovered,and a large number of-38μm particles are directly discarded as slime,resulting in low total recovery rate and serious waste of resources.In order to improve the recovery rate of ilmenite,this paper explores the effect of magnetic separation and enrichment of three fine-grained samples of Panzhihua Iron and Steel Group Co.,Ltd.,Xiushui ore and Hongge ore.The test results show that the new ZQS high-gradient magnetic separator can efficiently recover ultrafine ilmenite;the grade and recovery rate of concentrate TiO_(2) are relatively high(86.80%,82.26%and 77.78%,respectively,for the-0.038 to 0.019 mm grain grade).The magnetic separation technology is simple and shows a good perspective for industrial application.