攀西某微细粒难选钛铁矿的选矿新工艺研究  

Study on New Beneficiation Technology for a Refractory Ultrafine Ilmenite Ore in Panxi

作　　者：严伟平[1,2] YAN Weiping(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Chengdu 610041,China;Chinese Geological Survey Metal Mineral Resource Utilization Technology Center,Chengdu 610041,China)

机构地区：[1]中国地质科学院矿产综合利用研究所,成都610041 [2]中国地质调查局金属矿产资源综合利用技术研究中心,成都610041

出　　处：《有色金属工程》2020年第8期76-82,共7页Nonferrous Metals Engineering

基　　金：四川省科技计划资助项目(2019YJ0268);四川省自然资源厅科研项目(KJ-2019-6)。

摘　　要：微细粒钛铁矿的回收制约着我国攀西地区钛资源的高效开发利用。四川某矿业公司的斜板溢流原矿属辉石、橄榄石混合型钛铁矿,且粒度极细,-19μm产率为79.22%,其中TiO 2分布率为87.54%。研究结果表明,预先采用强磁选可有效消除部分超微细粒钛辉石、橄榄石等易浮杂质对浮选分离的不利影响,磁选精矿通过一次粗选五次精选一次精扫选流程,可获得钛精矿产率为21.85%,TiO 2品位为47.44%,TO 2回收率为62.89%的良好指标,为矿山高效利用钛资源提供了合理的技术方案。The recovery of fine ilmenite restricts the efficient development and utilization of titanium resources in Panxi area.The inclined plate overflow material of a mining company in Sichuan Province belongs to the mixed ilmenite of pyroxene and olivine,and the particle size is very fine,the propotion of-19μm is about 79.22%,and the distribution rate of TiO 2 is 87.54%.The results show that the pre-use of high-intensity magnetic separation can effectively eliminate the adverse effects of hydrophobic impurities such as ultrafine titanium pyroxene and olivine on the flotation separation.Through a flotation process of one rougher-five cleaners-one cleaner and scavenger for magnetic concentrates,titanium concentrate with yield of 21.85%,TiO 2-grade of 47.44%and TiO 2-recovery of 62.89%can be obtained,which provides a reasonable technical scheme for the efficient utilization of titanium resources in mines.

关 键 词：细粒钛铁矿 辉石 橄榄石 磁选 浮选 

分 类 号：TD923[矿业工程—选矿] TD924.1