A PURIFICATION PROCESS OF CRUDE TEREPHTHALIC ACID IN A POST OXIDATION ZONE BY THE ADDITION OF STEAM

The present invention relates to a process for heating a secondary oxidizer with steam. More specifically, the present invention relates to a process fo r heating a secondary oxidizer with steam in a process for the production of a crystallized product. A process to produce a crystallized product co...

Full description

Saved in:
Bibliographic Details
Main Authors SLUIJMERS, JOHANNES WILHELMUS, LIN, ROBERT, WOODRUFF, THOMAS EARL, DE VREEDE, MARCEL, DE BOER, MARTIN
Format Patent
LanguageEnglish
French
Published 02.12.2004
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:The present invention relates to a process for heating a secondary oxidizer with steam. More specifically, the present invention relates to a process fo r heating a secondary oxidizer with steam in a process for the production of a crystallized product. A process to produce a crystallized product comprises the following steps (a) oxidizing in an primary oxidation zone an aromatic feedstock to produce a crude carboxylic acid slurry; (b) oxidizing said crud e carboxylic acid slurry in a post oxidation zone in the presence of steam to form a post oxidation product; (c) purifying said post oxidation product to a decolorized post oxidation product; and (d) crystallizing in a crystallizati on zone said post oxidation product to form a crystallized product.
Bibliography:Application Number: CA20042522440