滇南地区某钛磁铁矿工艺矿物学研究  

Process Mineralogy of a Titanomagnetite in South Yunnan

作　　者：刘飞燕[1] 谢志远 邓冰[1] 张渊[1] 刘应冬 周家云[1] Liu Feiyan;Xie Zhiyuan;Deng Bing;Zhang Yuan;Liu Yingdong;Zhou Jiayun(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Chengdu,Sichuan,China;Sichuan Geological and Mineral Resources Group Co.,Ltd,Chengdu,Sichuan,China)

机构地区：[1]中国地质科学院矿产综合利用研究所,四川成都610041 [2]四川省地质矿产(集团)有限公司,四川成都610036

出　　处：《矿产综合利用》2023年第4期200-204,210,共6页Multipurpose Utilization of Mineral Resources

基　　金：四川省科技厅项目(2022ZHCG0124);中国地质调查局地质大调查项目(DD22021697)。

摘　　要：这是一篇工艺矿物学领域的论文。滇南地区某钒钛磁铁矿矿石不仅有较高的铁、钛,而且伴生钪元素。为实现矿石综合利用,对该矿进行了工艺矿物学研究。采用X射线荧光光谱分析及化学分析手段,查明了矿石化学成分;利用X射线衍射分析仪(XRD)、扫描电镜与能谱分析(SEM-EDS)、电子探针(EPMA)等方法,研究了矿物的工艺特征,重点考查了铁、钛元素的赋存状态。研究结果表明:矿石中铁的主要载体矿物为钛磁铁矿、角闪石,其次为钛铁矿;钛的载体矿物主要为钛铁矿,少量赋存于榍石中;钪主要分布在角闪石中。元素配分结果表明,铁、钛的理论品位分别为71.02%、47.40%,理论回收率分别为40.52%、66.48%。分析了影响选矿回收指标的矿物学因素,为后续选冶工艺提供了理论支撑。This is an essay in the field of process mineralogy.A titanium magnetite ore in Yunnan not only has high iron and titanium,but also is associated with scandium.In order to realize the comprehensive utilization of the ore,the process mineralogy of the ore was studied.The chemical composition of the ore was identified by means of X-ray fluorescence spectroscopy and chemical analysis;The technological characteristics of the minerals were studied by means of X-ray diffraction(XRD),scanning electron microscopy and energy dispersive analysis(SEM-EDS),electron probe microanalysis(EPMA),and the occurrence state of scandium was emphatically investigated.The results show that the main carrier minerals of iron in ore are titanomagnetite and amphibole,followed by ilmenite;The carrier mineral of titanium is mainly ilmenite,with a small amount occurring in sphene;Scandium is mainly distributed in amphibole.The results of elemental distribution show that the theoretical grades of iron,titanium and scandium are 71.02%,47.40% and 96.63 g/t respectively,and the theoretical recoveries are 40.52%,66.48% and 97% respectively.The mineralogical factors affecting the recovery index of mineral processing are analyzed,which provides a theoretical support for the subsequent beneficiation and smelting process.

关 键 词：工艺矿物学 钛磁铁矿 赋存状态 钪 综合利用 

分 类 号：TD952[矿业工程—选矿] P575[天文地球—矿物学]