Magnetic Separation of(Tantalum-Niobium)-Tin Bulk Concentrate
High gradient magnetic separation technique was adopted to separate the(tantalum-niobium)-tin bulk concentrate obtained from gravity separation.The effects of magnetic intensity,pulsating frequency,magnetic rod matrix diameter and rotating speed of ring on(Ta-Ni)/Sn separation efficiency were studied.The test results show that,from the bulk concentrate with grades of Ta,Ni and Sn respectively as 11.65%,9.33%and 19.59%,the final tantalum-niobium concentrate containing 22.31%Ta,17.38%Ni and 3.22%Sn can be collected with the recoveries of Ta,Ni and Sn respectively as 95.48%,92.88%and 8.20%,respectively.Meanwhile,a tin concentrate with Sn grade of 35.87%and Sn recovery of 91.80%can be obtained.The tantalum-niobium and tin minerals can be effectively separated.
tantalumniobiumtinSLon vertical ring pulsating high-gradient magnetic separatorseparationmagnetic separation
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