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| Study on Separation of Tantalum and Niobium by Extraction with MIBK from Low Hydrofluoric Acid Concentration System |
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Received:June 14, 2012
Revised:June 21, 2012
Accepted:June 25, 2012
Published Online:October 23, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.11.008 |
| KeyWord:low concentration; hydrofluoric acid; extraction; tantalum; niobium; MIBK |
| Author | Institution |
| YANG Xiu-li[sub_s][sub_e] |
昆明理工大学 |
| WANG Xiao-hui[sub_s][sub_e] |
中国科学院过程工程研究所 |
| SUN Qing[sub_s][sub_e] |
中国矿业大学北京 |
| XU Juan[sub_s][sub_e] |
中国科学院过程工程研究所 |
| ZHENG Shi-li |
中国科学院过程工程研究所 |
| WEI Chang[sub_s][sub_e] |
昆明理工大学 |
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| Abstract: |
| The extraction separation of tantalum and niobium with MIBK from low hydrofluoric acid concentration system was studied. The O/A ratio, hydrofluoric acid concentration, tantalum and niobium concentration and tantalum-niobium mass ratio on the effect of separation of tantalum and niobium were investigated. The results show that the separation factor of tantalum and niobium is 50 000 under the optimal extraction conditions including extraction time of 5 min, O/A ratio of 5, hydrofluoric acid concentration of 0.5 mol/L, tantalum and niobium total concentration of 60 g/L, and tantalum-niobium mass ratio of 2. |
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