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Alcohol(C1-C4)+TEOS 혼합계의 등온 기액평형에 관한 연구
A study on the Isothermal Vapor-liquid Equilibria of the Alcohol(C1-C4)+ TEOS Mixtures
HWAHAK KONGHAK, August 1995, 33(4), 488-496(9), NONE
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Abstract
Alcohol(C1-C4)+TEOS 혼합계의 60℃ 등온 기액평형을 정적 측정방법의 일환인 head space gas chromatography(H.S.G.C)방법을 이용하여 측정해 보았다. 측정한 모든 기액평형 데이터는 공비점을 갖지 않았고, Raoult의 법칙으로부터 양의 편차를 보였다. 이 때 양의 편차는 alcohol의 탄소수가 증가할수록 감소하는 경향을 보였다. 기액평형 데이터는 일반적인 gE 모델식에 합치시켜 보았고 이 때의 편차는 1% 미만이었다.
Isothermal vapor-liquid equilibrium(VLE) data were measured at 60℃ by means of the head space gas chromatography (H.S.G.C) method, one of the static methods, for alcohol (C1-C4)+
TEOS mixtures. All the experimental vapor-liquid equilibrium(VLE) data had no azeotropes and showed positive deviation from the Raoult’s law. The positive deviations decreased with the increase of the chain length of alcohols. VLE data were correlated with conventional gE models and deviations were found less than 1%.
TEOS mixtures. All the experimental vapor-liquid equilibrium(VLE) data had no azeotropes and showed positive deviation from the Raoult’s law. The positive deviations decreased with the increase of the chain length of alcohols. VLE data were correlated with conventional gE models and deviations were found less than 1%.
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Margules MS, S.B. Akad. Wiss. Wien. Math.-naturwiss. KI, II, 104, 1234 (1895)
VanLaar JJ, Z. Phys. Chem., 72, 723 (1910)
Wilson GM, J. Am. Chem. Soc., 86, 127 (1964)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
Redlich O, Kister AT, Ind. Eng. Chem., 40, 345 (1948)
Kolb B, J. Chromatogr., 122 (1976)
Kato M, Tanaka H, J. Chem. Eng. Data, 34, 2 (1989)
Riddick JA, Bunger EB, "Organic Solvents. Physical Properties and Methods of Purification," Wiley-Interscience, New York, 4th edn. (1986)
Pettenati C, Alessi P, Fermeglia M, Kikic I, Thermochim. Acta, 162, 203 (1990)
Dean JA, "Handbook of Organic Chemistry," Donelly & Sons Co. (1987)
Gmehling J, Onken U, Arlt W, "Vapor-Liquid Equilibrium Data Collection," DECHEMA (1981)
