攀西某低品位钒钛磁铁矿选厂铁尾矿选钛试验  

Experiment on Titanium Separation from Iron Tailings of a Low-grade Vanadium-titanium Magnetite Concentrator in Western Panzhihua

作　　者：王祥波 吴登平 赵刘阳 WANG Xiangbo;WU Dengping;ZHAO Liuyang(Panzhihua Fengyuan Mining Industry Company)

机构地区：[1]攀枝花丰源矿业有限公司

出　　处：《现代矿业》2023年第8期119-122,共4页Modern Mining

摘　　要：攀西某低品位钒钛磁铁矿选厂选铁尾矿隔粗(+1.5 mm)后TFe品位为12.42%、TiO_(2)品位为6.64%,主要有用矿物钛铁矿、磁铁矿多以微晶的形式赋存在脉石矿物中。为高效回收其中的钛矿物进行了选矿试验研究。结果表明,试样经重磁联合选矿可获得TFe品位为19.00%、TiO_(2)品位为19.14%重磁联合精矿;重磁联合精矿经磨矿、一次脱硫浮选、1粗3精浮选选钛流程处理,获得了TFe含量33.87%、TiO_(2)品位47.24%、TiO_(2)回收率70.17%、杂质含量较低的合格钛精矿,浮选工艺发挥了高效脱杂效果,且TiO_(2)损失有限;精选尾矿主要为不同程度的钛矿物连生体,这些精选尾矿合并返回再磨系统后可以很好地回收其中的钛,以获得更高的钛回收率。The grade of TFe is 12.42%and the grade of TiO_(2)is 6.64%after the coarser particles re-moval of iron tailings(+1.5 mm)in a low grade vanadium titanium magnetite dressing plant in Panxi.The main useful minerals ilmenite and magnetite mostly exist in gangue minerals in the form of microcrystalline.In order to efficiently recover the titanium minerals,the beneficiation test was carried out.The results showed that the gravity-magnetic combined concentrate with TFe grade of 19.00%and TiO_(2)grade of 19.14%could be obtained by gravity-magnetic combined beneficiation.The gravity-magnetic combined concentrate was treated by grinding,one desulfurization flotation and one roughing three cleaning titanium separation flotation process.The qualified titanium concentrate with TFe content of 33.87%,TiO_(2)grade of 47.24%,TiO_(2)recovery rate of 70.17%and low impurity content was obtained.The flotation process has played an efficient impurity removal effect,and the loss of TiO_(2)is limited.The concentrated tailings are mainly titanium mineral intergrowths with different degrees.After the concentrated tailings are combined and returned to the regrinding system,the titanium can be well recovered to obtain a higher titanium recov-ery rate.

关 键 词：钒钛磁铁矿 强磁抛尾 螺旋溜槽重选 浮选 联合选矿 

分 类 号：TD926.4[矿业工程—选矿]