黑龙江某难选钒钛磁铁矿选矿试验

Beneficiation Experiment on a Refractory Vanadium-titanium Magnetite in Heilongjiang Province

以黑龙江某难选钒钛磁铁矿石的工艺矿物学特征为基础,按弱磁选—强磁选—浮选原则流程进行了铁钛综合回收选矿工艺研究。结果表明,采用1段磨矿—1次弱磁选—弱磁选尾矿再磨—1次强磁选—1粗2扫4精、中矿顺序返回浮选流程处理该矿石,可获得Fe、TiO2、V2O5品位分别为55.04%、12.11%、0.62%,回收率分别为83.01%、63.08%、85.54%的铁精矿,以及TiO2、Fe、V2O5品位分别为45.11%、34.90%、0.22%,回收率分别为27.56%、6.17%、3.56%的钛精矿。

Based on the mineralogy characteristic of a refractory vanadium-titanium magnetite in Heilongjiang, the technical conditioning tests for beneficiation of the ore were carried out by the principle of low intensity magnetic separation- high intensity magnetic separation-flotation. The results show that by adopting the process of one stage grinding-one low in- tensity magnetic separation-regrinding of tailings-one high intensity magnetic separation-one roughing, two scavengings, four cleanings and middles back to the flowsheet in turn, Iron concentrate with Fe,TiO2,V205 grade of 55.04%, 12.11%, 0. 62% and Fe, TiO/, V2 05 recovery of 83.01%, 63.08 %, 85.54%, and Titanium concentrate with TiO2 , Fe, V2 05 grade of 45.11% ,34.90% ,0.22% and TiO2 ,Fe,V205 recovery of 27.56% ,6.17% ,3.56% were obtained separately.