攀西某钒钛磁铁矿重选尾矿再回收试验
Test of Gravity Separation Tailings Re-recovery of a Vanadium-titanium Magnetite in Westem Panzhihua
赵刘阳 1王祥波 1吴登平 1喻新灵 1王洪1
作者信息
摘要
攀西某超低品位钒钛磁铁矿为了回收利用总尾矿中的钛资源,在尾矿性质研究的基础上,进行了重选尾矿再回收试验.试验结果表明:尾矿通过强磁选—分级—弱磁选工艺,可得到全铁品位为19.07%、TiO2品位为18.25%的入浮矿样;对入浮矿样开展脱硫—1粗3精开路浮选,可得到TiO2品位47.27%、TiO2回收率70.78%的合格钛精矿,同时分级后的粗粒级矿物通过重选工艺,在摇床床面精矿与尾矿的截取比例为2∶8的条件下,可获得精矿产率为6.46%、全铁品位为13.41%、TiO2品位为8.83%的钛原料,能够并入主系统对其中的钛金属进行再次选别回收,以获得更高的钛资源综合利用率.
Abstract
In order to recycle the titanium resources in the total tailings of an ultra-low grade vanadi-um-titanium magnetite in Westem Panzhihua,based on the study of tailings properties,the re-recovery test of gravity tailings was carried out.The test results show that the flotation sample with total iron grade of 19.07％ and TiO2 grade of 18.25％ can be obtained by high intensity magnetic separation-classification-low intensity magnetic separation process.The qualified titanium concentrate with TiO2 grade of 47.27％ and TiO2 recovery of 70.78％ can be obtained by open-circuit flotation with desulfurization-1 roughing and 3 cleaning of the ore samples entering flotation.The coarse-grained minerals after classification are subjected to gravity separation process,under the condition that the interception ratio of the concentrate and tailings of the shaking table surface is 2:8,the titanium raw material with the concentrate yield of 6.46％,the total iron grade of 13.41％ and the TiO2 grade of 8.83％ can be obtained.It can be incorporated into the main sys-tem to separate and recycle the titanium metal again,so as to obtain higher comprehensive utilization rate of titanium resources.
关键词
钒钛磁铁矿尾矿/强磁选矿/细粒浮选/细粒钛精矿Key words
vanadium-titanium magnetite tailings/high intensity magnetic separation/fine particle flotation/fine titanium concentrate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据