A new technology for processing niobite ore found in Jiangxi province

摘要

A new process is proposed for refining niobite ore that is found in Jiangxi province of China.Niobite,also known as columbite or niobite-tantalite,is a mineral that contains tantalum and niobium.The separation process includes two-stage grinding,gravity concentration,magnetic separation,and flotation.The tantalum/niobium concentrate obtained had a grade of Ta2O5 18.28%,Nb2O5 41.62% at a recovery rate of Ta2O5 49.08%,Nb2O5 70.77%.Other minerals occurring along with the niobite,such as zinnwaldite,feldspar,and quartz,were also recovered to comprehensively utilize this ore.