摘要:
利用X射线荧光光谱分析(XRF)、光学显微镜、扫描电镜(SEM)、X射线能谱探针(EDS)等手段对安康地区某钛磁铁矿的工艺矿物学特征进行了研究。原矿化学分析结果显示,矿石中可供选矿回收的主要元素为钛和铁,其品位分别为20.9%、7.67%。矿物鉴定结果表明,矿物类型主要为:钛磁铁矿(16.8%),钛铁矿(8.81%),硫化物(1.10%),脉石矿物(73.29%)。矿物工艺粒度特征表明有用矿物钛磁铁矿、钛铁矿、硫化物粒径主要集中在500~100μm,脉石矿物相对于有用矿物较粗。元素平衡配分结果表明,铁和钛的理论品位分别为52.44%和47.83%,分布率分别为41.65%和54.30%。阐明了影响选矿指标的因素,为制定合理的选冶工艺提供了理论依据。
Abstract:
The process mineralogy characteristics of a titanomagnetite in Ankang region were studied by means of X-ray fluorescence spectrometry（XRF）,optical microscope,scanning electron microscope（SEM）,X-ray energy spectrum probe（EDS）,etc.The chemical analysis results of the crude ore show that the main elements available for beneficiation and recovery in the ore are titanium and iron,with grade of 20.9% and 7.67% respectively. Mineral identification results show that the mineral types are mainly titanomagnetite（16.8%）,ilmenite（8.81%）,sulfide（1.10%）,gangue minerals（73.29%）. The particle size characteristics of mineral technology show that the particle sizes of useful minerals titanomagnetite,ilmenite and sulfide are mainly in the range of 500 ～ 100 μm,which are closely linked in different forms.Equilibrium of? elements show that the theoretical grade of iron and titanium are 52. 44% and 47. 83%,respectively,and the distribution rates of iron and titanium are 41.65% and 54.30%,respectively. The factors affecting the beneficiation indexes are clarified,which provides a theoretical basis for the formulation of a reasonable beneficiation and metallurgy process.
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