中南大学学报（自然科学版）2026，Vol.57Issue(2)：475-487,13.DOI:10.11817/j.issn.1672-7207.2026.02.001
含铌矿物选矿技术研究进展
Research progress on beneficiation of niobium-bearing minerals
摘要
Abstract
Niobium is an important strategic and critical metal,with approximately 90％ of global production concentrated in Brazil and Canada.Although China possesses abundant niobium reserves,their exploitation remains difficult due to low ore grades,fine dissemination,and complex occurrence states,resulting in a long-term dependence on imports.The beneficiation of niobium-bearing minerals generally involves a combined process of gravity separation,magnetic separation,and flotation,among which flotation is the most complex and crucial step.In this paper,the recent research progress on flotation reagents and beneficiation processes for niobium minerals both in China and abroad was reviewed.The advantages and limitations of existing collectors such as amine and hydroxamate types were summarized.The challenges associated with current niobium beneficiation flow sheets were studied.In view of the complex niobium resources in the Bayan Obo deposit,a technical approach integrating beneficiation and metallurgy was proposed to enhance niobium recovery and utilization efficiency.关键词
铌/浮选药剂/浮选工艺Key words
niobium/flotation reagents/flotation process分类
矿业与冶金引用本文复制引用
张立繁,韩海生,孙伟,王宇峰..含铌矿物选矿技术研究进展[J].中南大学学报（自然科学版）,2026,57(2):475-487,13.基金项目
国家自然科学基金资助项目(52374291,U24A2093) （52374291,U24A2093）
国家"十四五"重点研发计划项目(22024YFC2909701)(Projects(52374291,U24A2093)supported by the National Natural Science Foundation of China （22024YFC2909701）
Project(2024YFC2909701)supported by the National Key Research and Development Program of the 14th Five-Year Plan) （2024YFC2909701）
