摘要
以攀西地区白马辉长岩型超低品位钒钛磁铁矿为研究对象,查明了该矿石中化学组分、矿物组成、铁和TiO_2的相态。在此基础上进行了多粒级多磁场梯度干式磁选抛尾试验,通过铁和TiO_2的相态分析,阐述了干式磁选抛尾的合理性;进行了干式磁选精矿阶段磨矿阶段选别试验,二段磁选在-0.074 mm 80%细度下,获得了TFe 57.78%、TiO_2 7.72%、V_2O_5 0.69%的铁精矿,铁精矿产率为12.93%、铁回收率51.56%,相对磁性铁回收率为98.70%,V_2O_5回收率78.26%。结果表明,该矿石虽然铁品位低,仍具综合回收利用价值。
The Baima gabbro-type ultra-low-grade vanadium-titanium magnetite in Panxi area was taking as the research object in this paper and the chemical composition,mineral composition,iron and titanium dioxide phase of the ore were ascertained.On these basis,the tail-throwing test of multi-size and multimagnetic field gradient dry magnetic separation is carried out.The rationality of tail-throwing in dry magnetic separation is explained through the analysis of iron and titanium dioxide phase.The iron concentrate with TFe 57.78%and TiO27.72%and V2O50.69%were obtained by the test of stage grinding and stage separation of dry magnetic separation concentrate when the grinding-fineness was-0.074 mm 80%in the second stage grinding-magnetic separation.And the iron concentrate yield was 12.93%and the recovery of iron and magnetite iron were 51.56%and 98.70%,and the recovery-rate of V2O5 in iron concentrate was 78.26%,respectively.The results showed that although iron grade of the ore is low,it still has the value of comprehensive recovery and utilization.
作者
陈福林
杨晓军
蔡先炎
吴宁
Chen Fulin;Yang Xiaojun;Wen Yongcai;Cai Xianyan;Wu Ning(Panzhihua Iron&Steel Research Institute Co.,Ltd.,of Pangang Group,Panzhihua,Sichuan,China;Chengdu Integrated Testing Center of Rocks and ores of Sichuan Bureau of Geology and Mineral Exploration and Development,Chengdu,Sichuan,China;Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province,Chengdu,Sichuan,China)
出处
《矿产综合利用》
CAS
北大核心
2020年第6期26-30,共5页
Multipurpose Utilization of Mineral Resources
关键词
辉长岩
超低品位
钒钛磁铁矿
选铁
Gabbro
Ultra-low grade
Vanadium-titanium magnetite
Iron separation
