Influence of Reaction Pressure on Semibatch Esterification Process of Poly(ethylene terephthalate) Synthesis

Influence of esterification pressure on oligomeric properties was studied by using a semibatch reactor. Esterification model for semibatch process was further improved by considering EG reflux in the column. It was observed that increasing the reaction pressure decreases EG/water ratio in the column...

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Bibliographic Details
Published in:Macromolecular symposia 2007-12, Vol.259 (1), p.65-75
Main Authors: Patel, Himanshu, Feix, Gunter, Schomäcker, Reinhard
Format: Article
Language:English
Subjects:
Applied sciences
carboxyl groups
Columns (process)
Esterification
Exact sciences and technology
modeling
Oligomers
Organic polymers
PET
Physicochemistry of polymers
Polycondensation
Preparation, kinetics, thermodynamics, mechanism and catalysts
pressure
Reactors
Summaries
Synthesis
Terephthalate
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Summary:Influence of esterification pressure on oligomeric properties was studied by using a semibatch reactor. Esterification model for semibatch process was further improved by considering EG reflux in the column. It was observed that increasing the reaction pressure decreases EG/water ratio in the column while increasing the EG/TPA feed ratio increases EG/water ratio in the column. By controlling the EG reflux in a semibatch reactor, it is possible to generate oligomers with similar oligomeric properties observed at different stages of continuous process.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200751308