A Study on the Recovery of Acetonitrile in the Process of Acrylonitrile

Acrylonitrile 제조공정에서 Acstonitrile의 회수에 관한 연구

  • Lee, Jin-Woo (Dept. of Chem. Eng., College of Eng., Dong-A Univ.) ;
  • Park, Dong-Won (Dept. of Chem. Eng., College of Eng., Dong-A Univ.)
  • 이진우 (동아대학교 공과대학 화학공학과) ;
  • 박동원 (동아대학교 공과대학 화학공학과)
  • Received : 1994.07.18
  • Accepted : 1994.09.05
  • Published : 1994.12.01


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 $25^{\circ}C$. The parameters in the NRTL, UNIQUAC and modified UNIQUAC model were predicted, distribution coefficient and selectivity of each solvent were determined respectively.