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왕관형 에테르와 알킬 술폰산을 포함한 함침형 액막에서 스트론튬의 투과 연구

A Study on Strontium Permeability in Supported Liquid Membrane Containing Crown-ether and Alkyl Sulfonic Acid

최영우 이창우¹ 문승현^†

Young-Woo Choi Chang-Woo Lee¹ Seung-Hyeon Moon^†

광주과학기술원 환경공학과, 광주 500-712 ¹한국원자력연구소 원자력 환경연구팀, 대전 505-353

Department of Environmental Science and Engineering, Kwangju Institute of Science and Technology, 1 Oryong-Dong, Buk-Gu, Gwangju 500-712, Korea ¹Nuclear Environment Research Division, Korea Atomic Energy Research Institute, 150 Deokjin-Dong, Yusung, Daejeon 505-353, Korea

shmoon@kjist.ac.kr

HWAHAK KONGHAK, August 2001, 39(4), 404-410(7), NONE

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Abstract

칼슘을 함유한 용액으로부터 스트론튬을 선택적으로 분리하기 위해 함침형 액막을 이용하여 촉진 수송에 의한 스트론튬의 투과특성을 고찰하였다. 운반체로 사용된 DC18C6과 DNNS의 조성변화에 따라 스트론튬 선택성 및 투과속도에 큰 영향을 미쳤으며 투과용액의 질산농도가 3 N 이상으로 증가하면 칼슘 투과속도를 증가시켜 스트론튬 선택성이 저하되었다. 그러나 공급용액의 스트론튬에 대한 칼슘 함량비에 따라 스트론튬 선택성 및 투과도는 큰 차이를 보이지 않았다. 본 연구에서 제조한 함침형 액막의 최적 조성은 DC18C6 0.1 M과 DNNS 25mM를 함유한 경우로서 최적 조성으로 제조한 액막을 이용하여 칼슘함유 용액으로부터 93.3%의 상대적 스트론튬 제거율을 얻을 수 있다.

In order to separate strontium selectively from a calcium contained solution, supported liquid membranes(SLM) were prepared and their characteristics of permeability for strontium were investigated. The contents of carriers, dicyclohex-ano-18-crown-6(DC18C6) and dinonylnaphthalenesulfonic acid(DNNS) in SLM affected the permeability and the selectivity_x000D_ of strontium. When the concentration of nitric acid in the strip solution was higher than 3 N, the selectivity of strontium declined due to the increasing permeability of calcium. The permeability and the selectivity of strontium did not showed remarkable variation in the wide range of the ratio of strontium to calcium concentration in the feed solution. The optimal con-dition of SLM prepared in this study was observed to be DC18C6 0.1 M and DNNS 25 mM. Using the SLM, the relative_x000D_ removal ratio of strontium to calcium was 93.3%.

Keywords

Strontium Supported Liquid Membrane Carrier Crown Ether DNNS

References

Miyauchi T, U.S. Patent, 4,051,230 (1977)
Baker RW, Tuttle ME, Kelly DJ, Lonsdale HK, J. Membr. Sci., 2, 213 (1977)
Mulder M, "Basic Principles of Membrane Technology," Kluwer Academic Publishers Netherlands, 340 (1996)
Valentova Z, Vanura P, Makrlik E, J. Radioanal. Nucl. Chem., 204(1-2), 45 (1997)
Bulter FE, Anal. Chem., 35(13), 2069 (1963)
Danesi PR, Sep. Sci. Technol., 19, 857 (1984)
Volchok H, De Planque G, EML Procedure Manual, Report HASL-300 26th end, Environmental Measurement Laboratory, New York (1983)
Boni AL, Anal. Chem., 35, 744 (1963)
Habata Y, Akabori S, Coord. Chem. Rev., 148, 97 (1996)
Danesi PR, Horwitz, Sep. Sci. Technol., 16, 201 (1981)
Sugira M, Kikkawa M, J. Membr. Sci., 42, 47 (1989)
Lee CW, Hong KH, Lee MH, Cho YH, Choi GS, Choi YW, Moon SH, J. Radioanal. Nucl. Chem., 243(3), 767 (2000)
The Merck Index, 11th Ed., No. 2605 (1989)
Lehn JM, "Design of Organic Complexing Agents, Strategies Towards Properties," Struct. Bonding, 16, 1 (1973)
Baker RW, Cussler EL, Eykamp W, Koros WJ, Riley RL, Strathmann H, "Membrane Separation Systems," NOYES data Co., 2, 242 (1991)