摘要
攀西某钒钛磁铁矿选厂选钛尾矿TiO_2品位6.46%,含铁12.34%,60.77%的钛以钛铁矿的形式存在,较难选的粗粒级和超细粒级含量较高。为回收利用该二次资源中钛,进行钛的再回收试验。结果表明,矿样经一段弱磁除铁—一段强磁选—+0.154 mm粒级磨矿至-0.074 mm64.41%—二段弱磁选除铁—除铁尾矿与超声波脱药后的-0.154 mm粒级合并—二段强磁选—强磁尾矿1次浮硫—浮硫尾矿1粗3精1扫选钛,可获得产率5.02%、TiO_2品位47.06%、TiO_2回收率36.74%的钛精矿,硫含量低于0.2%,同时可综合回收铁和硫。试验结果可为建设选钛尾矿再回收工艺生产线提供技术依据。
TiO2 grade of Panxi Vanadium Titanium Magnetite Plant ilmenite tailings is 6. 46%,iron grade is 12. 34%,60. 77% of titanium in form of ilmenite,coarse grain and ultra fine grain content which is difficult to separation is high. Titanium recycle test was conducted to recovery titanium in the secondary resource. Results show that the samples via one stage low intensity magnetic separation to remove iron-one stage high intensity magnetic separation-＋ 0. 154 mm graded grinding（ 64. 41%-0. 074 mm）-second stage low intensity magnetic separation to remove iron-iron tailings and-0. 154 mm graded after ultrasonic medicine off mixed-second stage high intensity magnetic separation-tailings one stage floating sulphurtailings one roughing three cleaning one scavenging select titanium,titanium concentrate with yield rate of5. 02%,TiO2 grade 47. 06% and recovery of 36. 74%,sulfur content less than 0. 2%,at the same time comprehensive recovery iron and sulfur. Test results can provide technical basis for construction of titanium tailings recycle process line.
作者
吴雪红
Wu Xuehong(Design and Research Institute of Pangang Group Mining Co. , Ltd. State Key Laboratory of Vanadium Titanium Resources Comprehensive Utilization)
出处
《现代矿业》
CAS
2017年第4期104-107,112,共5页
Modern Mining
基金
国家科技支撑计划项目(编号:2015BAB19B01)
关键词
选钛尾矿
弱磁除铁
强磁选
超声波
浮选
Ilmenite tailings
Low intensity magnetic separation to remove iron
High intensity magnetic separation
Ultrasonic
Flotation
