摘要
分析了铌的性质、用途、资源现状、分布特征以及矿床类型,归纳总结了国内外铌矿的选矿工艺,并对铌矿浮选药剂及其作用机理进行了阐述。铌资源主要分布在巴西和加拿大,其中巴西铌储量占总储量80%。铌矿床成因复杂、类型种类较多,可开采和具有开采潜力的铌矿多与碳酸岩有关。国外铌矿主要是烧绿石,品位较高,选别工艺简单;国内铌矿成分复杂、嵌布粒度细,分选难度大,多采用联合工艺流程综合回收铌矿和伴生矿物,实现资源最大化利用。目前,大多数浮选研究是采用常规药剂改变铌矿物与脉石矿物之间的可浮性差异,效果不理想,应加强药剂改性、组合用药以及药剂与铌矿的作用机理方面的研究。
The properties and application of niobium,as well as the status,distribution characteristics and type of deposits of niobium ore resources at home and abroad were introduced.The beneficiation technology of niobium ore at home and abroad is summarized,and the collector and action mechanism of niobium ore flotation are explained.Niobium resources are mainly distributed in Brazil and Canada,of which Brazil's niobium reserves account for 80%of the total reserves.There are many types and complex genesis of niobium deposits,minable and potential niobium ore is mostly related to carbonate rock.Foreign niobium ore is mainly pyrochlore,with high grade and simple sorting process;domestic niobium ore has complex composition,fine embedding size,large sorting difficulty,the combined process is often used to comprehensively recover niobium ore and associated minerals to maximize resource utilization.At present,most of the flotation research is to use conventional agents to change the floatability difference between niobium minerals and gangue minerals,the effect is not ideal,should strengthen the agent modification,combined use of drugs and the mechanism of action of the agent and niobium ore.
作者
黎洁
谢贤
吕晋芳
康博文
李博琦
朱辉
LI Jie;XIE Xian;Lü Jinfang;KANG Bowen;LI Boqi;ZHU Hui(Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming 650093,China;Yunnan Province En-gineering Research Center for Reutilization of Metal Tailings Resources,Kunming 650093,China)
出处
《金属矿山》
CAS
北大核心
2021年第2期120-126,共7页
Metal Mine
基金
广东省矿产资源开发和综合利用重点实验室开放基金项目(编号:SK-201903)。
关键词
铌矿
选矿工艺
药剂
机理
niobium
beneficiation process
reagents
mechanism
