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湖北十堰低品位钨钛多金属矿原矿含Fe为25.64%,TiO2为6.22%,WO3为0.26%,铁以磁铁矿为主、钛以钛铁矿为主、钨以黑钨矿为主。采用弱磁选回收铁得铁精矿、强磁选得钛钨混合精矿、复合摇床重选分离钨钛得钛精矿和钨精矿。铁、钛、钨分选试验得出,在一段磨矿细度为-0.045 mm占95%、弱磁选磁场强度H=0.10 T、二段磨矿细度为-0.038 mm占95%、强磁选磁场强度H=1.0 T的弱磁选—强磁选—重选工艺综合条件下,得到了Fe品位为62.76%,含TiO2为0.79%,WO3为0.09%,铁回收率为56.20%的铁精矿;WO3品位为65.01%,含Fe为10.18%,TiO2为2.01%,钨回收率为49.67%的钨精矿;TiO2品位为48.10%,含Fe为21.06%,WO3为0.98%,钛回收率为71.01%的钛精矿,实现了有价金属铁、钛、钨的综合回收。
The low-grade tungsten-tungsten polymetallic ore in Shiyan, Hubei Province contains 25.64% of Fe, 6.22% of TiO2 and 0.26% of WO3, with magnetite as its main constituent, ilmenite as its major constituent and tungsten as its major constituent. The use of weak magnetic separation iron ore concentrate recovery, strong magnetic separation of titanium and tungsten mixed concentrate, composite shaker re-election tungsten and titanium titanium concentrate and tungsten concentrate. Iron, titanium and tungsten sorting tests showed that in a section of grinding fineness of -0.045 mm accounted for 95%, weak magnetic field strength H = 0.10 T, second-stage grinding fineness of -0.038 mm accounted for 95%, strong Under the condition of weak magnetic separation-strong magnetic separation-re-selection process with magnetic field strength of H = 1.0 T, the Fe grade was 62.76%, containing TiO2 0.79%, WO3 0.09% and iron recovery 56.20% Iron concentrate; WO3 grade of 65.01%, Fe containing 10.18%, TiO2 2.01%, tungsten recovery of 49.67% tungsten concentrate; TiO2 grade of 48.10%, Fe of 21.06%, WO3 of 0.98%, titanium The recovery rate of 71.01% of titanium concentrate, to achieve a comprehensive recovery of valuable metals, iron, titanium, tungsten.