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| Solvent Extraction and Separation of Hafnium from Zirconium with DIBK |
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Received:July 25, 2011
Published Online:February 24, 2012
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| DOI：doi：10.3969/j.issn.1007-7545.2012.03.010 |
| KeyWord:diisobutyl ketone (DIBK); zirconium; hafnium; extraction; separation |
| Author | Institution |
| XU Zhi-gao1,2, WANG Li-jun2, CHI Ru-an1, ZHANG Li2 |
1. 武汉工程大学 绿色化工过程教育部重点试验室，武汉 ;2. 北京有色金属研究总院 矿物资源与冶金材料研究所，北京 |
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| Abstract: |
| Solvent extraction and separation between zirconium and hafnium under acid medium were carried out with diisobutyl ketone (DIBK) as extractant and TBP or P204 as additive. The effects of acid medium, TBP addition, P204 addition and salting-out agent (NH4)2SO4 addition on the extraction and separation of hafnium from zirconium were investigated, respectively. The results show that DIBK selectively extracts the hafnium only in HSCN medium, and the extraction rate of hafnium and separation factor of hafnium and zirconium can significantly be improved when TBP or P204 is added. The separation factor of hafnium from zirconium is 9, and the extraction and separation of zirconium and hafnium with DIBK is similar to the performance of MIBK. |
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