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| Techno-economic Evaluation on New Extraction Separation Process of Mixed Tm, Yb, and Lu |
| Received:June 30, 2017 Revised:July 05, 2017 |
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| DOI：doi：10.3969/j.issn.1007-7545.2018.01.010 |
| KeyWord:Tm; Yb; Lu; extraction separation; techno-economy; evaluation |
| Author | Institution |
| HAN Qi-ying |
广东富远稀土新材料股份有限公司 |
| ZHOU Yong |
广东富远稀土新材料股份有限公司 |
| ZHONG De-qiang |
广东富远稀土新材料股份有限公司 |
| LIU Zhi-qiang |
广东省稀有金属研究所 |
| ZHANG Kui-fang |
广东省稀有金属研究所 |
| LING Cheng |
广东富远稀土新材料股份有限公司 |
| HAN Xin-fu |
广东富远稀土新材料股份有限公司 |
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| Abstract: |
| To solve disadvantages of traditional P507 extraction separation for Tm, Yb, Lu, such as low separation efficiency, high acid and alkali consumption, and high cost, new combined extraction separation process was designed based on optimization design of extraction and separation process. New processes achieve maximum separation efficiency and utilization rate of acid and alkali by applying technologies such as mixture extraction system, displacement extraction, combination fuzzy separation, and reuse of washing and extraction capacity and, etc. Techno-economic comparison was carried out between traditional and new process. The results show that new combined extraction separation process can significantly reduce cost of acid and alkali and storage trough, improve separation efficiency with easy operation and control. |
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