从某稀土尾矿中回收萤石和锶钡矿物工艺实验  

Process Test on Recovery of Fluorite and Strontium-barium Minerals from a Rare Earth Tailing Ore

作　　者：邓善芝[1] 邓杰[1] 康博文 蔺慧杰 熊文良[1] DENG Shanzhi;DENG Jie;KANG Bowen;LIN Huijie;XIONG Wenliang(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Technology Innovation Center of Rare Earth Resources Development and Utilization,China Geological Survey,Chengdu 610041,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

出　　处：《矿产综合利用》2024年第6期27-32,39,共7页Multipurpose Utilization of Mineral Resources

基　　金：四川省科技计划项目(2022YFS0454);四川省科技计划项目(2022YFS0509);中国地质大调查项目(DD20242002);四川省科技计划项目(2023YFS0353);十四五国家重点研发计划项目(2023YFC2908200)。

摘　　要：这是一篇矿物加工工程领域的论文。某稀土矿矿石中伴生萤石和锶钡矿物,由于该样品成分和嵌布关系复杂,矿物嵌布粒度细,且萤石和锶钡矿物浮选性质相近,常规药剂和工艺无法实现样品中伴生萤石和锶钡矿物的富集和分离,影响当地生态环境,造成国家矿产资源的重大浪费。针对该样品,开展浮选药剂优选和工艺优化,形成适于该稀土尾矿资源化利用的混合浮选-分离再提纯选矿工艺。研究结果表明,针对SrO品位为8%,CaF_(2)品位为16%的稀土尾矿,经混合浮选-再分离提纯工艺可以得到品位为90%的萤石精矿和锶钡混合精矿纯度90%的锶钡精矿,研究结果可以为同类型尾矿资源化利用提供借鉴。This is an article in the field of mineral processing engineering.Tailings in China are rich in strontium-barium-bearing minerals and fluorite minerals.Due to the complex distribution relationship of the minerals,it’s very difficult to recover the minerals.In this article,the mixed flotation and separation beneficiation process was developed for the utilization of the tailings.The research results indicate that for the tailings with 8%SrO grade and 16%CaF_(2) grade,the fluorite concentrate with 91%CaF_(2) grade and the strontium-barium bearing mineral concentrate with more than 90%mineral purity can be obtained.The research results can provide technical support for tailings resource utilization,reduction and harmlessness in China.

关 键 词：矿物加工工程 尾矿 资源化 萤石 锶钡矿物 

分 类 号：TD955[矿业工程—选矿]