Phase equilibrium measurements on nine binary mixtures
- Brigham Young Univ., Provo, UT (United States). Chemical Engineering Dept.
- Wiltec Research Co. Inc., Provo, UT (United States)
Phase equilibrium measurements have been performed on nine binary mixtures. The PTx method was used to obtain vapor-liquid equilibrium data for the following systems at two temperatures each: (aminoethyl)piperazine + diethylenetriamine; 2-butoxyethyl acetate + 2-butoxyethanol; 2-methyl-2-propanol + 2-methylbutane; 2-methyl-2-propanol + 2-methyl-2-butene; methacrylonitrile + methanol; 1-chloro-1,1-difluoroethane + hydrogen chloride; 2-(hexyloxy)ethanol + ethylene glycol; butane + ammonia; propionaldehyde + butane. Equilibrium vapor and liquid phase compositions were derived form the PTx data using the Soave equation of state to represent the vapor phase and the Wilson or the NRTL activity coefficient model to represent the liquid phase. A large immiscibility region exists in the butane + ammonia system at 0 C. Therefore, separate vapor-liquid-liquid equilibrium measurements were performed on this system to more precisely determine the miscibility limits and the composition of the vapor phase in equilibrium with the two liquid phases.
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 404509
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 41, Issue 6; Other Information: PBD: Nov-Dec 1996
- Country of Publication:
- United States
- Language:
- English
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