| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-석유화학.윤활유 |
| 제목 |
Effective Separation of Europium and Yttrium in Hexanoic Acid-Crown Ether System |
| 초록 |
The solvent extraction of rare earth elements such as europium and yttrium has been investigated. It has been found that the synergistic solvent extraction method for the separation of the metals can be achieved by using a hexanoic acid as an extractant with crown ether. In order to improve the selectivity of europium and yttrium, the effects of the following factors on the metal extraction experiment have been considered: ⅰ) pH, ⅱ) the concentration of extractant, ⅲ) the kinds of crown ether. As a result, the pH0.5 difference of europium ans yttrium in the experiment using 0.05M hexanoic acid extract is about 0.10, and extraction species of the two metals should be MR3•3RH. Moreover, the additive such as 12-crown-4 ether, 15-crown-5 ether and 18-crown-6 ether is used in order to increase the separation effect of two metals, and using 15-crown-5 ether among them shows the highest pH0.5 difference value. |
| 저자 |
심대선1, 김세미1, 나성흠1, 김영운1, 정노희2, 강호철1
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| 소속 |
1한국화학(연), 2충북대 |
| 키워드 |
selectivity separtion; solvent extraction; fatty acid; Europium; yttrium
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| E-Mail |
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