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...
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Main Authors | , , , , |
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Format | Patent |
Language | English French |
Published |
02.12.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: CA20042522440 |