SEPARATION APPARATUS FOR MIXTURE, SEPARATION METHOD USING THE SAME AND METHOD FOR PRODUCING AROMATIC CARBOXYLIC ACID

PROBLEM TO BE SOLVED: To miniaturize a columnar container such as distillation column or the like and to reduce the consumption of energy in a separation process. SOLUTION: A part of column top vapor discharged from the top of the distillation column 1 is cooled and liquefied to be returned to the d...

Full description

Saved in:
Bibliographic Details
Main Authors SEIKI YOSHIO, MATSUMOTO NORITAKA, OZORA HIROYUKI, TAKEUCHI YOSHIYUKI, KOBAYASHI KAZUTO, AKIMOTO KEIICHI
Format Patent
LanguageEnglish
Published 25.03.2004
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To miniaturize a columnar container such as distillation column or the like and to reduce the consumption of energy in a separation process. SOLUTION: A part of column top vapor discharged from the top of the distillation column 1 is cooled and liquefied to be returned to the distillation column 1 and the remainder thereof is separated into permeated vapor based on water and non-permeated vapor based on acetic acid using the separation membrane 8a of a separator 8. These permeated vapor and non-permeated vapor are cooled to be recovered as liquids. Further, a liquid mainly comprising acetic acid is recovered from the bottom part of the distillation column 1. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020255663