新疆某钛铁矿重选粗精矿工艺矿物学及分选可行性研究  

Process Mineralogy and Separation Feasibility of Rough Concentrate from Gravity Separation of Ilmenite Ore from Xinjiang

作　　者：费泽通 袁致涛[1] 孟庆有 FEI Zetong;YUAN Zhitao;MENG Qingyou(School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,Liaoning,China)

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《矿冶工程》2025年第1期61-64,共4页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(52174241)。

摘　　要：为综合回收新疆某钛铁矿重选粗精矿中铁、钛元素,进行了工艺矿物学及分选可行性试验研究。工艺矿物学研究结果表明,矿样中有用矿物为钛铁矿、含锰钛铁矿、含钛磁铁矿、磁铁矿,脉石多为透闪石、铁钠闪石、石榴石、榍石等含铁钛硅酸盐矿物。采用“磨矿-弱磁选选铁-两段强磁选预富集钛-浮选脱硫-一粗一扫四精浮选选钛”工艺,可获得铁精矿TFe品位63.93%、回收率69.11%的良好指标,但钛精矿TiO_(2)品位仅32.59%、回收率28.04%。钛铁矿TiO_(2)品位低、含铁硅酸盐脉石矿物质量分数高是影响钛选矿指标的主要因素。The process mineralogy and separation feasibility of an ilmenite ore from Xinjiang were comprehensively studied to recover iron and titanium resources from the gravity separation concentrate.The process mineralogy results show that the valuable minerals therein include ilmenite,manganese-bearing ilmenite,titanium-bearing magnetite and magnetite,while the gangue minerals therein are predominantly tremolite,riebeckite,garnet and sphene.After one stage of grinding,iron minerals were collected with one stage of low intensity magnetic separation.Then,two stages of high intensity magnetic separation were adopted to recover titanium minerals.The titanium rough concentrate was treated by a flotation for desulfurization and a flotation process consisting of one stage of roughing,one stage of scavenging and four stages of cleaning.The whole process produced an iron concentrate grading 63.93%TFe at 69.11%recovery,presenting a good separation index,and a titanium concentrate was obtained with grade of 32.59%TiO_(2) at 28.04%recovery.It is found that low TiO_(2) content and high content of iron-bearing silicate gangue minerals are the main factors affecting the ilmenite beneficiation indicators.

关 键 词：钛铁矿 工艺矿物学 浮选 磁选 铁精矿 钛精矿 

分 类 号：TD952[矿业工程—选矿]