湖北某地铌钽铁矿工艺矿物学研究  

Process Mineralogy of Niobium Tantalum Iron Ore in Hubei

作　　者：李潇雨[1,2] 刘星[1] 熊文良[1] 黄智民 Li Xiaoyu;Liu Xing;Xiong Wenliang;Huang Zhimin(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Rare Earth Resources Application Technology Innovation Center of China Geological Survey,Chengdu,Sichuan,China;Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu,Sichuan,China;College of Earth Sciences,Chengdu University of Technology,Chengdu,Sichuan,China)

机构地区：[1]中国地质科学院矿产综合利用研究所,中国地质调查局稀土资源应用技术创新中心,四川成都610041 [2]成都理工大学沉积地质研究院,四川成都610000 [3]成都理工大学地球科学学院,四川成都610000

出　　处：《矿产综合利用》2023年第4期194-199,共6页Multipurpose Utilization of Mineral Resources

基　　金：国家重点研发计划(2021YFC2902201);中国地质调查项目(DD20221809);四川省中央引导地方科技发展专项(2022ZYD0126);四川省自然科学基金项目(23NSFSC0495)。

摘　　要：这是一篇工艺矿物学领域的论文。锂、铍、铌、钽等稀有金属作为国家战略性新兴资源,主要应用于国防、航空、航天等工业领域,近年来备受地质学家的关注。湖北某地铌钽铁矿为含铌粗面质火山岩及火山碎屑岩矿床,本文对该矿石进行了系统的工艺矿物学研究,查明矿石中主要含铌的矿物有铌铁矿,铌铁金红石、赤褐铁矿和钛铁矿、黄铁矿等,铌铁矿为该矿石选别铌精矿的主要回收矿物。大部分铌矿物嵌布粒度均小于0.04 mm,铌铁矿粒度微细,多为0.5~8μm,但在-0.037 mm 90%时单体解离度可达71.11%,可考虑用磁选方法分离铌铁矿和脉石矿物;矿石中脉石矿物以绢云母、斜长石为主,磨细后泥化严重,应注意泥级物质团聚对选矿实验的影响。This is an essay in the field of process mineralogy.Rare metals such as lithium,beryllium,niobium and tantalum,as national strategic emerging resources,are mainly used in industrial fields such as national defense,aviation and aerospace,and have attracted the attention of geologists in recent years.A niobium tantalite deposit in Hubei Province is a niobium-bearing trachytic volcanic rock and pyroclastic rock deposit.In this paper,a systematic process mineralogical study is carried out on the ore.It is found that the main niobium-containing minerals in the ore are niobium iron ore,niobium iron rutile,hematite and limonite,ilmenite and pyrite.Niobium iron ore is the main recovered mineral for the separation of niobium concentrate.The embedded particle size of most niobium minerals is less than 0.04 mm,and the particle size of niobium iron ore is fine,mostly 0.5 ~ 8 μm.However,at 90% of-0.037 mm,the monomer dissociation can reach 71.11%.Magnetic separation can be considered to separate niobate and gangue minerals;Gangue minerals in the ore are mainly sericite and plagioclase,which are seriously argillized after grinding.Attention should be paid to the influence of mud grade material agglomeration on beneficiation test.

关 键 词：工艺矿物学 铌钽铁矿 铌铁金红石 脉石矿物 

分 类 号：TD952[矿业工程—选矿] P575[天文地球—矿物学]