Solvent-water-2-propanol 삼성분계의 액-액평형

정상훈; 이진우; 박동원

Journal of the Korean Industrial and Engineering Chemistry, Vol.8, No.4, 653-659, August, 1997

Export Citation

Solvent-water-2-propanol 삼성분계의 액-액평형

LLE of Solvent-Water-2-Propanol Ternary Systems

정상훈, 이진우, 박동원

초록

에너지 비용의 상승에 따라 추출의 기본원리를 둔 새로운 분리공정에 대한 연구가 많이 진행되고 있으며, 이에 따라 액-액평형 조성의 계산 및 예측에 대한 필요성이 매우 증가하고 있다. 본 연구에서는 공비혼합물을 형성하는 2-propanol 수용액에 용매로서 methyl ethy1 ketone, methyl isobutyl ketone, ethylacetate, butylacetate, toluene 및 o-xylene을 첨가한 삼성분계에 대하여 25℃에서 용해도곡선, tie line, plait point, 분배계수와 선택도를 실험을 통해 구하였다. Tie line 데이터의 열역학적 건전성을 확인하였으며 실험값을 NRTL 및 UNIQUAC 모델식으로 구한 계산값과 비교하였다.

Due to the rising cost of energy, new separation processes based on extraction are becoming more attractive than before. Thus, the need for calculating and predicting liquid-liquid equilibria(LLE) compositions has very much increased. The purpose of this study is to determine the binodal curves, tie line, plait point, distribution and selectivity for the termary systems of 2-propanol-water with methyl ethyl ketone, methyl isobutyl ketone, ethylacetate, toluene and o-xylene as solvents at 25℃. And those tie line data were used to examine thermodynamic consistency. The experimental tie line data were correlated with NRTL and UNIQUAC models.

[References]

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[1] Marcilla A, Ruiz F, Olaya MM, Fluid Phase Equilib., 105(1), 71 (1995)

[2] Gomis V, Prats D, Ruiz F, Asensi JC, Reus F, Fluid Phase Equilib., 106(1-2), 203 (1995)

[3] Salem AB, Hamad EZ, Fluid Phase Equilib., 108(1-2), 231 (1995)

[4] Bakr A, Salem SH, Hamad EZ, Alnaafa MA, Ind. Eng. Chem. Res., 33(3), 689 (1994)

[5] Nagata I, Tamura K, J. Chem. Eng. Data, 41(4), 873 (1996)

[6] Brown TF, Ind. Eng. Chem., 40, 103 (1948)

[7] Hand DB, J. Phys. Chem., 34, 1961 (1930)

[8] Othmer DF, Tobias PE, Ind. Eng. Chem., 34, 693 (1942)

[9] Ishida K, Bull. Chem. Soc. Jpn., 33, 693 (1960)

[10] Major CJ, Swenson QJ, Ind. Eng. Chem., 38, 834 (1946)

[11] Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)

[12] Abrams DS, Prausnitz JM, AIChE J., 21, 116 (1975)

[13] John AR, Wiliam BB, "Organic Solvents," John Wiley & Sons, New York (1970)

[14] Haddad PO, Edmister WC, J. Chem. Eng. Data, 17, 275 (1972)

[15] Lee JW, Park DW, J. Korean Ind. Eng. Chem., 5(6), 1016 (1994)

[16] Othmer DF, White RE, Trueger E, Ind. Eng. Chem., 33, 1240 (1941)

[17] Hooke R, Jeeves TA, Assoc. Comp. Mach., 8, 212 (1961)