Vapor-liquid equilibrium ratios (Kw1∞ values) for hexane at infinite dilution in propylene+impact polypropylene copolymer (ICP-PP) and ethylene+ICP-PP systems were measured at temperatures 323.2, 343.2 and 363.2 K and pressures up to 2.4 MPa using a chromatographic technique. The solubilities of propylene in polypropylene and those of propylene, ethylene, and hexane in ICP-PP were measured. The PVT properties of the polypropylene and ICP-PP were also studied. These data were used to determine the pure component and binary interaction parameters for the Sanchez-Lacombe equation of state (S-L EOS). The Kw1∞ values were predicted by using the S-L EOS with binary parameters evaluated by correlation of phase-equilibrium data of binary systems. Good agreement between the experimental and calculated Kw1∞ values was obtained by optimizing the equation parameters.
- Vapor-liquid equilibrium ratio
ASJC Scopus subject areas
- Chemical Engineering(all)
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry