VAPOR-LIQUID-EQUILIBRIUM DATA FOR 4 TERNA RY-SYSTEMS COMPOSED OF METHANOL, TERT-BUTYLALCOHOL, TERT-BUTYLMETHYLETHER AND WATER AT ATMOSPHERIC-PRESSURE, AND LIQUID-LIQUID EQUILIBRIUM DATA FOR 2 TERNARY-SYSTEMS OF TERT-BUTYLMETHYLETHER-WATER-METHANOL OR TERT-BUTYLALCOHOL AT 303 K

In order to develop reactive distillation for producing tert-butylmeth ylether (TBME) from methanol (MeOH) and tert-butylalcohol (TBA), vapor -liquid equilibrium data for four ternary systems of MeOH-TBA-TBME, Me OH-TBA-water, MeOH-TBME-water and TBA-TBME-water have been observed at atmospheric pressure. Estimation of ternary vapor-liquid equilibrium relationships have been made by use of Wilson parameters resulting fro m binary vapor-liquid equilibrium data composed of members of ternary systems. Further, comparison between ASOG, UNIFAC and Wilson methods h ave been examined. It is confirmed that Wilson parameters are availabl e to estimate ternary vapor-liquid equilibrium relationships. Also liq uid-liquid equilibrium data for two ternary systems of TBA-TBME-water and MeOH-TBME-water have been observed at 303 K.