Thermodynamics of mixtures containing ethers. PART II - Isothermal x-y data for the ternary system MTBE plus methanol+1-butanol and for two constituent binaries: DISQUAC predictions on VLE of ternary mixtures containing tertiary-alkyl ethers and organic solvents

VLE data at 298.15 K (x-y measurements, where x and y are the mole fraction s in liquid and vapor phase, respectively) for methanol or 1-butanol + meth yl tert-butyl ether (MTBE) and for MTBE + methanol + 1-butanol systems are reported. These data and those available on literature on VLE at isothermal conditions for ternary systems containing tertiary-alkyl ethers (MTBE. ter t-amyl methyl ether (TAME)) and organic solvents (hydrocarbons and 1-alkano ls) are analyzed in terms of DISQUAC. The model correctly predicts VLE of t his type of mixtures using binary parameters only, i.e. neglecting ternary interactions. Results are independent of the mixture considered. (C) 2001 E lsevier Science B.V. All rights reserved.