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| Production of Laser Grade Europium Oxide by Direct Extraction Separation |
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Received:June 28, 2018
Revised:July 03, 2018
Accepted:July 04, 2018
Published Online:October 16, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.11.013 |
| KeyWord:europium oxide; direct extraction separation method; laser grade |
| 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 |
| ZHANG Kuí-fang |
广东省稀有金属研究所 |
| LIU Zhi-qiang |
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 |
| ZHONG De-qiang |
广东富远稀土新材料股份有限公司 |
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| Abstract: |
| Production method and process of laser grade europium oxide by P507 complete extraction separation method with samarium, europium, gadolinium enrichment as raw materials were described and compared with traditional zinc powder reduction-extraction separation method. The advantages of direct extraction separation and development direction of high purity europium oxide production were put forward. The results show that direct extraction separation method can eliminate zinc powder reduction process, which has the disadvantages of large slag quantity, serious heavy metal waste liquid pollution, and large potential safety hazards of hydrogen. At the same time, it has many advantages including continuous production, convenient operation control and low production cost. Production cost of per ton of europium oxide can be reduced by nearly 50 000 Yuan RMB by direct extraction separation method. |
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