Separating phenol from phenol-water subazeotrope by treatment with brine

Abstract

Abstract (F) CONNECTING MEANS TO (1) MIX A FIRST PORTION OF SAID BRINW WITH SAID COMPOSITION; (2) ADMIT SAID MIXED FIRST PORTION AND COMPOSITION TO SAID DISTILLING COLUMN AT A POINT WHERE THE PHENOL-WATER RATIO OF SAID MIXTURE IS ABOUT EQUAL TO THE PHENOL-WATER RATIO OF THE LIQUID IN SAID COLUMN; (3) MIX A SECOND PORTION OF SAID BRINE WITH AT LEAST A PORTION OF SAID CONDENSATE; (4) ADMIT SAID MIXED SECOND PORTION AND CONDENSATE TO THE TOP OF SAID DISTILLING COLUMN; AND (5) ADMIT AT LEAST A PORTION OF SAID STEAM FROM SAID REBOILER TO THE BOTTOM OF SAID DISTILLING COLUMN. 1. AN APPARATUS FOR SEPARATING PHENOL FROM A COMPOSITION CONTAINING UP TO ABOUT 8% OF A SALT AND A SUBAZEOTROPIC MIXTURE OF PHENOL AND WATER COMPRISING: (A) A DISTILLING COLUMN FOR PRODUCING AN OVERHEAD VAPOR AND A BOTTOM LUQUOR; (B) A CONDENSER FOR CONDENSING SAID OVERHEAD VAPOR TO FORM A CONDENSATE. (C) A HEATER FOR HEATING SAID COMPOSITION; (D) A REBOILER FOR BOILING A PORTION OF SAID BOTTOM LIQOUR TO PRODUCE STEAM; (E) AN EVAPORATOR FOR EVAPORATING A PORTION OF SAID BOTTOM LIQOUR TO PRODUCE BRINE AND A WATER-RICH PRODUCT; AND

Inventors

• 👤 F Sisk

Bibliographic Details