磁-重联合工艺从钽铌尾矿中分选钽的实验研究  

Experimental study on separation of tantalum from tantalum-niobium tailings using magnetic-gravity combined process

作　　者：石岩 何桂春[1,2] 肖志 赵红宇 江长松[1,2] SHI Yan;HE Guichun;XIAO Zhi;ZHAO Hongyu;JIANG Zhangsong(School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Jiangxi Key Laboratory of Mining Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西理工大学江西省矿业工程重点实验室,江西赣州341000

出　　处：《有色金属科学与工程》2024年第4期608-614,共7页Nonferrous Metals Science and Engineering

基　　金：江西省重点研发计划项目(20203BBGL73231)。

摘　　要：钽铌矿组分结构复杂,嵌布粒度细,品位较低,选矿工艺比较复杂。针对宜春钽铌尾矿中钽铌含量少,难以回收利用的问题,采用高梯度磁选机和摇床对钽铌尾矿进行分选。针对Ta_(2)O_(5)品位0.0134%、Nb_(2)O_(5)品位0.0078%的钽铌尾矿,采用“磁选-重选”联合工艺流程对其进行富集,分别得到Ta_(2)O_(5)品位为11.286%、回收率为40.74%、Nb_(2)O_(5)品位为6.633%、回收率为40.74%的钽铌精矿产品,试验指标良好。Ta_(2)O_(5)、Nb_(2)O_(5)得到了较好的综合回收,证明了“磁选-重选”联合工艺的可行性,并且该工艺提供了环保绿色的回收钽铌矿的方法,为钽铌矿及同类资源的综合回收提供了的技术支持。With complex component structure and fine embedded particle size,tantalum-niobium ore has low grade,and its beneficiation process is complicated.To solve the difficulty in recovering and utilizing tantalum and niobium as the result of their low content in the Yichun tantalum-niobium tailings,this study conducted sorting experiments on the tantalum-niobium tailings using a high gradient magnetic separator and shaking table.The results showed that for tantalum-niobium tailings with a Ta_(2)O_(5) grade of 0.0134%and a Nb_(2)O_(5)grade of 0.0078%,the combined process with magnetic separation and gravity separation can be employed for enrichment,resulting in a tantalum-niobium concentrate with a Ta_(2)O_(5) grade of 11.286%and a recovery of 40.74%,a Nb_(2)O_(5)grade of 6.633%and the same recovery.With good experimental indicators and relatively high recovery rates,the result demonstrated the feasibility of magnetic gravity combined process which provides an environmentally friendly method of recovering tantalum-niobium ore,and offering favorable technical support for the comprehensive recovery of this kind ore and similar resources.

关 键 词：钽铌矿 磁选 重选 综合回收 

分 类 号：TD954[矿业工程—选矿]