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NTIS 바로가기한국유화학회지 = Journal of oil & applied science, v.32 no.1, 2015년, pp.31 - 39
심대선 (한국화학연구원) , 한혜림 (한국화학연구원) , 김세미 (한국화학연구원) , 김정훈 (한국화학연구원) , 김영운 (한국화학연구원) , 정노희 (충북대학교 공업화학과) , 강호철 (한국화학연구원)
The synergistic solvent extraction of rare earth elements such as europium and yttrium has been investigated by the extractant with crown ether as an additive. Macrocyclic ligand as host-guest compounds form more stable complexes with metal ions which have the similar size of the cavity of crown eth...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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희토류 금속이란? | 희토류 금속은 란타넘족인 원자번호 57번에서 71번인 금속 15가지와 Sc와 Y을 포함한 금속을 말하며, 전자 기기나 자성체, 세라믹, 차세대 전기 전지 등의 첨단 사업에 이용되고 있다.1) 이금속들은 물리적·화학적 성질이 유사하여 일반적인 화학분석조작으로는 분리가 어렵기 때문에 이를 분리·정제하기 위한 기술이 연구되어지고 있다. | |
희토류 금속 사용분야는? | 희토류 금속은 란타넘족인 원자번호 57번에서 71번인 금속 15가지와 Sc와 Y을 포함한 금속을 말하며, 전자 기기나 자성체, 세라믹, 차세대 전기 전지 등의 첨단 사업에 이용되고 있다.1) 이금속들은 물리적·화학적 성질이 유사하여 일반적인 화학분석조작으로는 분리가 어렵기 때문에 이를 분리·정제하기 위한 기술이 연구되어지고 있다. | |
희토류 금속을 분리, 정제하기 위한 기술이 연구되어지고 있는 이유는? | 희토류 금속은 란타넘족인 원자번호 57번에서 71번인 금속 15가지와 Sc와 Y을 포함한 금속을 말하며, 전자 기기나 자성체, 세라믹, 차세대 전기 전지 등의 첨단 사업에 이용되고 있다.1) 이금속들은 물리적·화학적 성질이 유사하여 일반적인 화학분석조작으로는 분리가 어렵기 때문에 이를 분리·정제하기 위한 기술이 연구되어지고 있다.1)-5) |
Y. Masuda, Y. Zhang, C. Yan, and B. Li,, Studies on the extraction and separation of lanthanide ions with a synergistic extraction system combined with 1,4,10,13-tetrathia-7,16-diazacyclooctadecane and lauric acid, Talanta, 46, 203-213 (1998).
Y. Jiang, A. Shibayama, K. Liu, and T. Fujita, A hydrometallurgical process for extraction of lanthanum, yttrium and gadolinium from spent optical glass, Hydrometallurgy, 76, 1-9 (2005).
R. Shimizu, K. Sawada, K. Enokida, and Y. Yamamoto, Supercritical fluid extraction of rare earth elements from luminescent material in waste fluorescent lamps, supercritical fluids, 33, 235-241 (2005).
A.M.Y Jaber, and A.-E. Al-Naser, Liquid-liquid extraction of some lanthanide metal ions by polyoxyalkylene systems, Talanta, 44, 1719-1728 (1997).
T. C. Owens, and M. Smutz, Extraction of some heavier lanthanides in acidic chloride solutions by di(2-ethylhexyl) phosphoric acid, Inorg. Nucl. Chem., 30, 1617-1633 (1968).
K. E. Lalntz, and E. Tachikawa, Extraction of Lanthanides from Acidic Solution Using Tributyl Phosphate Modified Supercritical Carbon Dioxide, Anal. Chem., 66, 2190-2193 (1994).
W. C. Butts, and C. V. Banks, Solvent Extraction and Gas Chromatography of the Rare Earth Mixed-Ligand Complexes of Hexafluoroacetylacetone and Tri-n-butylphosphate, Anal. Chem., 42, 133-136 (1970).
T. Cecconie, and H. Freiser, Extraction of tervalent lanthanides as hydroxide complexes with tri-n-octylphosphine oxide, Anal. Chem., 62, 622-625 (1990).
A. A. Zamani, and M. R. Yaftian, Solvent extraction of thorium, lanthanum and europium ions by bis(2-ethylhexyl) phosphoric acid using 2-nitrobenzo-18-crown-6 as ion size selective masking agent, Sep. Purif. Technol., (40), 115-121 (2004).
X. Sun, J. Wang, D. Li, and H. Li, Synergistic extraction of rare earths by mixture of bis(2,4,4-trimethylpentyl) phosphinic acid and Sec-nonylphenoxy acetic acid, Sep. Purif. Technol., 50, 30-34 (2006).
F. Bunns, and R. Dumitrescu, Simultaneous Extraction of Rare Earth Elements and Uranium from Phosphoric Acid, Hydrometallurgy, 28, 331-336 (1992).
R. W. Rinehart, Spectrophotometric Determination of Some Rare Earths and Yttrium with Alizarin Red S, Anal. Chem., 26, 1820-1822 (1954).
Q. Z. Zhai, Simultaneous determination of lanthanum and cerium in mixed rare earths with p-acetylarsenazo by spectrophotometry, Talanta, 41, 703-706 (1994).
T. S. Urbanski, C. Abbruzzese, P. Fornari, and R. Massidda, The extraction of cerium (III) and lanthanum (III) with Kelex 100 from chloride solutions, Hydrometallurgy, 25, 185-195(1990).
C. Abbruzzese, P. Fornari, R. Massidda, and T. S. Urbanski, Solvent extraction of lanthanum (III) and cerium (III) from aqueous chloride solutions by LIX 70, Hydrometallurgy, 28, 179-190 (1990).
S. Tong, X. Zhao, N. Song, Q. Jia, W. Zhou, and W. Liao, Solvent extraction study of rare earth elements from chloride medium by mixtures of sec-nonylphenoxy acetic acid with Cyanex301 or Cyanex302, Hydrometallurgy, 100, 15-19 (2009).
S. Radhika, B. N. Kumar, M. L. Kantam, and B. R. Reddy, Liquid-liquid extraction and separation possibilities of heavy and light rare-earths from phosphoric acid solutions with acidic organophosphorus reagents, Sep. Purif. Technol., 75, 295-302 (2010).
T. Harada, M. Smutz, and R. G. Bautista, Characterization of iron and rare-earth polymers of di(2-ethylhexyl)phosphoric acid, J. Chem. Eng. Data, 17, 203-204 (1972).
M. H. Mallah, F. Shemirani, and M. G. Maragheh, Use of dispersive liquid-liquid microextraction for simultaneous preconcentration of samarium, europium, gadolinium and dysprosium, J. Radioanal. Nucl. Chem., 278, 97-102 (2008).
C. J. Pedersen, Cyclic polyethers and their complexes with metal salts, J. Am. Chem. Soc., 89, 7017-7036 (1967).
M. Atanassova, Crown ethers as synergistic agents in the solvent extraction of trivalent lanthanoids with 8-hydroxyquinoline, J. Serb. Chem. Soc., 73, 29-39 (2008).
M. Hiraoka, crown compounds: Their characteristics and Applications; Elsevier Scientific Publishing Co.: New York (1992).
L. F. Lindoy, The chemistry of Macrocyclic Ligand Complexes; Cambridge University Press: Cambrige, U.K. (1989).
A. H. Bond, M. L. Dietz, and R. Chiarizia, Incorporating Size Selectivity into Synergistic Solvent Extraction: A Review of Crown Ether-Containing Systems, Ind. Eng. Chem. Res., 39, 3442-3464 (2000).
K. M. Bang, H. J. Ryu, M. B. Choi, and H. C. Kang, Extraction of Yttrium and Europium with Fatty Acids as Extractants, Appl. Chem. Eng., 21, 509-513 (2010).
K. M. Bang, E. S. Lee, H. S. Been, J. H. Kim, Y. W. Kim, G. T. Lim, and H. C. Kang, Separation of Lanthanum and Cerium by Solvent Extraction Using Tetradecanoic Acid as a Extractant, J. Korea Soc. Waste Manage., 29, 231-238 (2012).
K. Nakagawa, S. Okada, Y. Inoue, A. Tai, and T. Hakushi., Solvent extraction of lanthanoid picrates with crown ethers: preferential sandwich complexation and unique cation selectivities, Anal. Chem., 60, 2527-2531 (1988).
H. Imura, and H. Mito, Selective extraction of light lanthanides(III) with 18-crown-6 and perfluorooctanoate, J. Radioanal. Nucl. Chem., 189, 229-235 (1995).
Y. Meguro, Y. Kitatsuji, T. Kimura, and Z. Yoshida, Steric effect of $\beta$ -diketone +18-crown-6 ether/ 1,2-dichloroethane, J. Alloys Compd., 271, 790-793 (1998).
M. Atanassova, and I. L. Dukov : Synergistic Solvent Extraction of Trivalent Lanthanoids with Mixtures of 1-Phenyl-3-methyl-4-benzoyl-5-pyrazolone and Crown Ethers, Acta Chim. Slov., 53, 457-463 (2006).
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