화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.6, 1016-1023, December, 1994
Acrylonitrile제조공정에서 Acstonitrile의 회수에 관한 연구
A Study on the Recovery of Acetonitrile in the Process of Acrylonitrile
초록
Acrylonitrile 제조시 부산물로 생성되는 acetonitrile-water 공비혼합물에서 용매추출하여 acetonitrile을 회수하기 위하여 benzene, toluene, o-xylene, ethylacetate 및 monochlorobenzene을 용매로 선택하여 25℃ 에서 solvent(1)-water(2)-acetonitrile(3)계의 액-액 평형데이타를 구하였으며, 그 실험데이타의 건전성을 조사하였고, tie line과 plait point조성을 결정하였다. 또한 NRTL, UNIQUAC 및 modified UNIQUAC모델식에 적용하여 parameter를 추산하고 각 용매에 대한 분배계수와 선택도를 결정하였다.
In process of manufacturing acrylonitrile azeotrope of acetonitrile-water was come into being as by-product. For the purpose of recovering acetonitrile through solvent extraction process benzene, toluene, o-xylene, ethylacetate and monochlorobenzene as solvents were selected in order to separate acetonitrile from azeotrope of acetonitrile-water. In this study liquid-liquid equilibrium data were determined and consistency of the experimental data was investigated. The tie line and plait point for solvent(1)-water(2)-acetonitrile(3) system were determined at 25℃. The parameters in the NRTL, UNIQUAC and modified UNIQUAC model were predicted, distribution coefficient and selectivity of each solvent were determined respectively.
  1. Weber WJ, Smith EH, Environ. Sci. Technol., 20, 33 (1986)
  2. Cave SD, Mazzarotta B, J. Chem. Eng. Data, 36, 298 (1991) 
  3. Rao CVSR, Rao KV, Raviprasad A, Chiranjiri C, J. Chem. Eng. Data, 23, 23 (1978) 
  4. Nagata I, Ohta T, J. Chem. Eng. Data, 28, 256 (1983) 
  5. Hand DB, J. Phys. Chem., 34, 1961 (1930) 
  6. Renon H, Prausnitz JM, AIChE J., 14, 135 (1968) 
  7. Abrams DS, Prausnitz JM, AIChE J., 21, 116 (1975) 
  8. Anderson TF, Prausnitz JM, Ind. Eng. Chem. Process Des. Dev., 17, 552 (1978) 
  9. Haddad P, Edimister WCJ, J. Chem. Eng. Data, 17, 275 (1972) 
  10. Othmer DF, White RE, Trueger E, Ind. Eng. Chem., 33, 1240 (1941) 
  11. Radecki A, Kaczmark B, Grazybaski J, J. Chem. Eng. Data, 20, 163 (1975) 
  12. Brown TF, Ind. Eng. Chem., 40, 103 (1948) 
  13. Othmer DF, Tobias PE, Ind. Eng. Chem., 34, 693 (1960) 
  14. Ishida K, Bull. Chem. Soc. Jpn., 33, 693 (1960) 
  15. Major CJ, Swenson QJ, Ind. Eng. Chem., 38, 834 (1946) 
  16. Varhegyi G, Eon C, Ind. Eng. Chem. Fundam., 16, 182 (1977) 
  17. Hooke R, Jeeves TA, Assoc. Comp. Mach., 8, 212 (1961)
  18. Treybal RE, Weber LD, Daley JF, Ind. Eng. Chem., 38, 817 (1946)