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Influence of water on esterification reaction between terephthalic acid and ethylene glycol
Author(s) -
Yamada Toshiro
Publication year - 1990
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1990.070410309
Subject(s) - diethylene glycol , terephthalic acid , ethylene glycol , ethylene , chemistry , chemical engineering , materials science , organic chemistry , catalysis , engineering , polyester
Examples of simulation in the first reactor for the direct continuous esterification were shown to predict the effects of water added into the reactor (δ H 2 O ) on the reactions by a computer. From the simulation results, the followings were confirmed: Although the higher δ H 2 Ogives the worse results, i.e., the main reaction rates become lower, it brings about the better results, i.e., the side reactions of diethylene glycol (DEG) formation is suppressed; the clearing point where solid (undissolved) terephthalic acid begins not to exist in the reaction mixtures, β = 1, is the point of AV = 0.6 eq/kg, which coincides with the point obtained from the experimental observation, independently of reaction conditions.