막분리에서 액체막내의 이온투과현상

양원강; 이갑득

Polymer(Korea), Vol.14, No.6, 664-667, December, 1990

Export Citation

막분리에서 액체막내의 이온투과현상

Ion Transport Phenomena Within A Liquid Membrane on Membrane Separation

양원강, 이갑득

초록

분리용막을 이용한 역수송계에서 이온의 확산계수가 막내이온의 농도와 확산성 막투과 계수에 따른 변화를 검토하였다. 종래의 막-전해질수용액계에서 확산계수는 농도 프로파일에는 의존하지 않는다는 보고였다. 그러나 본 연구에서 확산계수는 외부의 전해질수용액에 강하게 의존하는 결과를 얻었다. 이 결과를 에너지장벽논리에 적용하여 이온의 flux식에서 Potential항을 무시한 새로운 막포텐셜식을 유도한 결과 식과 잘 맞는 것을 알았다. 이 식은 역수송계가 중화반응에서 생기는 에너지로 이온flux, 막투과계수 그리고 전해질용액의 활농도와의 관계에 대해서 고찰하였다.

The diffusion coefficients of ion in the reverse transport system using the separation memranes were estimated from the diffusional membrane permeabilities and the ion concentration within membrane. The results indicated the diffusion coefficients depend strongly on concentrations of outer electrolyte to equilibriated with the membrane. The result was interpreted in terms of the energy barrier theory. Furthermore, a new equation for the flux and membrane potential was derived by eliminating the potential terms. The equation indicated that the reverse transport system is driven by the energy of neutralization reaction. A relation among the flux, the permeability and the activity of electrolyte in solution is presented and verified by the experimental results.

[References]

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Yang W, Yamauchi A, Kimizuka H, J. Membr. Sci., 31, 109 (1987)
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Rosano HL, Duby P, Schulman JH, J. Phys. Chem., 65, 1704 (1961)
Pefferkorn E, Varoqui R, J. Colloid Interface Sci., 52, 89 (1975)
Yamauchi A, Shinohara H, Shinoda M, Hirata Y, Kimizuka H, Bull. Chem. Soc. Jpn., 60, 1045 (1987)
Nomura K, Matsubara A, Kimizuka H, Bull. Chem. Soc. Jpn., 54, 1324 (1981)
Kimizuka H, Kaibara K, Kumamoto E, Shirozu M, J. Membr. Sci., 4, 81 (1978)
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[1] Li NN, U.S. Patent, 3,410 (1968)

[2] Li NN, U.S. Patent, 3,794 (1968)

[3] Yang W, Yamauchi A, Kimizuka H, J. Membr. Sci., 31, 109 (1987)

[4] Nagata Y, Kohara K, Yang W, Yamauchi A, Kimizuka H, Bull. Chem. Soc. Jpn., 59, 2689 (1986)

[5] Katchalsky A, Curran PF, "Nonequilibrium Thermodynamics in Biophysics," Harvard University Press, Cambridge (1965)

[6] Kimizuka H, Nagata Y, Yang W, "Europe-Japan Congress Membrane Science and Technology," pp. 85-92, Ed. E. Brioli and M. Nakagaki (1986)

[7] Ovchinnikov YA, Ivanov VT, Shkrob AM, "Membrane-Active Complexones," B.B.A. Library vol. 12, pp. 78-85, Elsevier, Amsterdam (1974)

[8] Rosano HL, Duby P, Schulman JH, J. Phys. Chem., 65, 1704 (1961)

[9] Pefferkorn E, Varoqui R, J. Colloid Interface Sci., 52, 89 (1975)

[10] Yamauchi A, Shinohara H, Shinoda M, Hirata Y, Kimizuka H, Bull. Chem. Soc. Jpn., 60, 1045 (1987)

[11] Nomura K, Matsubara A, Kimizuka H, Bull. Chem. Soc. Jpn., 54, 1324 (1981)

[12] Kimizuka H, Kaibara K, Kumamoto E, Shirozu M, J. Membr. Sci., 4, 81 (1978)

[13] Kirkwood JG, "Ion Transport Across Membrane," Academic Press, New York (1954)

[14] Starzak ME, "The Physical Chemistry of Membranes," pp. 107-117, Academic Press Inc. (1984)

[15] Lakshminarayanaiah N, "Equations of Membrane in Biophysics," pp. 137-154, Academic Press Inc. (1984)

[16] Sandblom J, Eisenman G, Walker JL, J. Phys. Chem., 71, 3862 (1967)