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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received September 23, 2004
Accepted January 20, 2005

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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NMF를 포함하는 이성분계의 등온 기-액 평형과 삼성분계 액-액 평형

Binary Vapor-Liquid Equilibria and Ternary Liquid-Liquid Equilibria for NMF Contained Systems

박소진^† 한규진 원동복 오종혁 최영윤¹

So-Jin Park^† Kyu-Jin Han Dong-Bok Won Jong-Hyeok Oh Young-Yoon Choi¹

충남대학교 공과대학 신소재공학부, 305-764 대전시 유성구 궁동 220 ¹한국지질자원연구원 자원활용소재연구부, 305-350 대전시 유성구 가정동 30

Division of New Materials Engineering, College of Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, Korea ¹Minerals & Materials Processing Division, Korea Institute of Geoscience & Mineral Resources, 30, Gajeong-dong, Yuseong-gu, Daejeon 305-350, Korea

sjpark@cnu.ac.kr

Korean Chemical Engineering Research, April 2005, 43(2), 259-265(7), NONE Epub 9 May 2005

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Abstract

Water+n-methylformamide(NMF), benzene+NMF 그리고 toluene+NMF의 353.15 K 이성분계 등온 기-액상평형을 headspace gas chromatography(HSGC)로 측정하였고, NMF+benzene+n-heptane과 NMF+toluene+n-heptane 삼성분계에 대한 298.15 K 액-액상평형을 tie-line 측정법으로 결정하였다. 이성분계 기-액상평형 데이터는 공비점이 없었으며, gE 모델식(Margules, van Laar, Wilson, NRTL, UNIQUAC)에 비교적 작은 편차로 잘 상관되었다. 삼성분계 tie-line 데이터는 NRTL식과 UNIQUAC식을 이용하여 상관과 추산을 병행하였으며, Hirata-Fujita식과 Maior-Swenson식을 이용하여 정확도를 검증하였다.

Binary isothermal vapor-liquid equilibrium(VLE) data were measured for water+n-methylformamide(NMF), benzene+NMF and toluene+NMF systems by using headspace gas chromatography(HSGC) at 353.15K. Additionally, the ternary liquid-liquid Equilibrium(LLE) data were determined by measuring of tie-line for the systems of NMF+benzene+n-heptane and NMF+toluene+n-heptane at 298.15 K. The measured isothermal binary VLE data have no azeotropes and were correlated well with gE model equations of Margules, van Laar, Wilson, NRTL and UNIQUAC. The experimental ternary tie line data were also correlated well with NRTL and UNIQUAC models. Besides their accuracy was analyzed by Hirata-Fujita and Maior-Swenson equations.

Keywords

n-Methylformamide (NMF) Binary Vapor-Liquid Equilibrium Ternary Liquid-Liquid Equilibrium Tie Line Correlation

References

Sattler K, Feindt HJ, Thermal Separation Process, Fifth Edition, VCH Publishers, New York, NY (1995)
Streib H, J. Prakt. Chem. Ser. 4, 30(1), 245 (1965)
Renon H, Prausnitz JM, AIChE J., 14(1), 135 (1968)
Fredensland A, Jones RI, Prausnitz JM, AIChE J., 21(6), 1086 (1975)
Hand DB, J. Phys. Chem., 34(9), 1961 (1930)
Hirata M, Fujita S, J. Chem. Eng. Jpn., 21, 201 (1957)
Kolb B, J. Chromatography, 122, 533 (1976)
Park SJ, Lee TJ, Korean J. Chem. Eng., 12(1), 110 (1995)
Oh JH, Park SJ, J. Chem. Eng. Data, 42(3), 517 (1997)
Oh JH, Park SJ, J. Chem. Eng. Data, 43(6), 1009 (1998)