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Received July 5, 2010
Accepted August 13, 2010
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Propyl vinyl ether+Ethanol+Benzene 혼합계의 333.15 K에서의 등온 기액평형과 303.15 K에서의 과잉물성 및 굴절율편차
Isothermal Vapor-Liquid Equilibria at 333.15 K and Excess Molar Volumes and Refractive Indices at 303.15 K for the Mixtures of Propyl vinyl ether + Ethanol + Benzene
충남대학교 화학공학과, 305-764 대전광역시 유성구 궁동 220
Department of Chemical Engineering, College of Engineering, Chungnam National University, 220 Gung-Dong, Yuseong-gu, Daejeon 305-764, Korea
sjpark@cnu.ac.kr
Korean Chemical Engineering Research, February 2011, 49(1), 56-61(6), NONE Epub 9 February 2011
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Abstract
Methyl vinyl ether, propyl vinyl ether, isopropyl vinyl ether, butyl vinyl ether 그리고 isobutyl vinyl ether 등의 alkyl vinyl ether는 화학 및 의약산업에서 용매와 합성중간체로 널리 사용된다. 최근 들어 alkyl vinyl ether는 고분자 전해질막 연료 전지에 대한 원료와 셀룰로오스의 염색가공에 선호되나, 공정 및 운전변수의 최적화를 위한 alkyl vinyl ether계의 혼합물성은 극히 일부가 보고되고 있고, propyl vinyl ether(PVE)에 대한 상평형과 물성 데이터는 거의 알려진 바가없다. 따라서 본 연구는 {PVE + ethanol + benzene} 삼성분계 333.15 K에서 기액평형을 headspace gas chromatography(HSGC)을 이용하여 측정하였고 Wilson, NRTL 및 UNIQUAC 식에 상관시켰다. 또한 삼성분계를 구성하는 혼합물성으로써 {PVE + ethanol}, {ethanol + benzene} 그리고 {PVE + benzene}계에 대한 과잉부피(VE) 및 굴절율 편차(ΔR)를 303.15 K에서 측정하였다. 측정된 이성분계 혼합물성은 Redlich-Kister 다항식을 이용하여 매개변수를 상관시켰으며, 이를 이용하여 Radojkovic 식으로 삼성분계 혼합물성을 예측하였다.
Alkyl vinyl ethers such as methyl vinyl ether, propyl vinyl ether, isopropyl vinyl ether, butyl vinyl ether and isobutyl vinyl ether are usually used as industrial solvents and chemical intermediates in the chemical or pharmaceutical industry. Recently, they are popularly used as raw materials for polymer electrolyte membrane fuel cells and as cellulose dyeing assistants. However, very few investigations about process design and operation data were reported for alkyl vinyl ether compounds and there are no data for propyl vinyl ether(PVE) systems as far as we know. In this work, the isothermal VLE data are reported at 333.15 K for the ternary systems of {PVE + ethanol + benzene} by using headspace gas chromatography(HSGC) and these VLE data were correlated using Wilson, NRTL and UNIQUAC equations. The excess volumes(VE) and deviations in molar refractivity(ΔR) data are also reported for the sub binary systems {PVE + ethanol}, {ethanol + benzene} and {PVE + benzene} at 303.15 K. These data were correlated with Redlich-Kister_x000D_
equation. In addition, isoclines of VE and DR for ternary system {PVE + ethanol + benzene} were also calculated from Radojkovic equation.
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Oh JH, Park SJ, J. Chem. Eng. Data, 43(6), 1009 (1998)
Oh JH, Park SJ, J. Chem. Eng. Data, 42(3), 517 (1997)
Park SJ, Kim HH, Han KJ, Won DB, Lee SB, Choi MJ, Fluid Phase Equilib., 180(1-2), 361 (2001)
Han KJ, Oh JH, Park SJ, J. Ind. Eng. Chem., 13(3), 360 (2007)
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Al-Dujaili AH, Yassen AA, Awwad AM, J. Chem. Eng. Data., 45, 647 (2000)
