| 초록 |
Tetrahydrofuran (THF) is an organic solvent, an important organic raw material, and the precursor of polymers. THF is used by manufacture of solvents, surface coating, protection coating adhesives, film of various resin and is used to PVC command resin specially.Due to its proton-accepting nature, it is used as a solvent in many chemical industries. Many chemical and pharmaceutical industries encounter problem in separating THF from aqueous waste streams since their mixture form azeotropes at low compositions of water.Liquid-liquid equilibrium data are important in chemical-engineering applications such as separation equipment design, especially to separate organic compounds from their aqueous mixtures. These data also provide valuable information about the molecular interactions and macroscopic behavior of fluid mixtures and can be used to test and improve thermodynamic models for calculating and predicting fluid-phase equilibria.The purpose of this work is to determine liquid-liquid equilibrium (LLE) data of 1-pentanol(1) + water(2) + THF(3) + propyl acetate(4) mixture and the LLE data for the quaternary system were measured at 298.15 K and atmospheric pressure. |
