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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.
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 49.08% of Ta2O5, 70.77% of Nb2O5. Other minerals occurring along with the niobite, such as zinnwaldite, feldspar, and quartz, were also recovered to comprehensively utilize this ore.