矿产综合利用2025，Vol.46Issue(5)：47-53,71,8.DOI:10.12476/kczhly.202409100258
微细粒低品位钽铌锂资源综合回收新工艺实验
Experiment on New Comprehensive Recovery of Micro-fine Particle Low-grade Refractory Tantalum Niobium Lithium Resources
摘要
Abstract
The fine-grained low-grade tail mud of the Yichun tantalum niobium ore contains 0.17％Li2O,0.007 1％Ta2O5,0.007 8％Nb2O5,and whiteness is 24.20％.Mineralogical studies indicate that tantalum-niobium minerals and lithium mica particles in the tailings are mainly distributed below-20 μm,while feldspar particles are mainly distributed below-45 μm,which is a fine grained and low grade mineral,making resource recovery challenging.Through the beneficiation process of"slurry magnetic separation for iron removal-vibrating cone recovery of tantalum-niobium-flotation to improve feldspar brightness-flotation recovery of lithium mica for the comprehensive recovery of this tailings,experiments achieved a tantalum-niobium concentrate(TaNb)2O5 grade of 27.75％,lithium mica concentrate Li2O grade of 1.57％,with a recovery rate of 42.76％.The feldspar had an Al2O3 grade of 14.92％,Fe2O3 grade of 0.045％,brightness of 68.70％,and total alkali content of 7.91％.This process successfully achieved comprehensive recovery of tantalum-niobium,lithium,and feldspar resources.关键词
矿物加工工程/低品位尾矿/浆料机/综合回收/微细粒矿物Key words
mineral processing engineering/low-grade refractory tail mud/sizing machine/comprehensive recovery/micro-fine particle minerals分类
矿业与冶金引用本文复制引用
王强强,李振飞,郭越福,沈新春,赖纪全,张婷..微细粒低品位钽铌锂资源综合回收新工艺实验[J].矿产综合利用,2025,46(5):47-53,71,8.基金项目
2023年江西省科技专项资金(科技计划第二批)项目(20232BCJ23053) （科技计划第二批）
