화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2011년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터)
권호 15권 1호
발표분야 콜로이드계면화학
제목 Separation Recovery of Lanthanum, Cerium and Terbium by Solvent Extraction
초록 A convenient procedure for the selective recovery of rare earth metals has been studied. It was found that the solvent extraction method can be achieved by using chelating agent such as a fatty acid. In order to improve the selectivity of lanthanum, cerium and terbium, the recovery of lanthanum, cerium and terbium was investigated in various fatty acid solutions as an extractant from the waste electronic devices. Experiment conditions, including the pH of the extracted solution, the changes in carbon chain length and concentration of the extractants were investigated in order to achieve a selective extraction. Using hexanoic acid as an extractant in kerosene, the separation factor of lanthanum, cerium and terbium is 15.
저자 방경모1, 최민배1, 류호진1, 이병민1, 박종목1, 김광섭2, 박민규3, 강호철1
소속 1한국화학(연), 2(주)삼광, 3(주)새빗켐
키워드 selective recovery; rare earth metal; solvent extraction; fatty acid; separation factor
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