THE GROWTH, DISSOLUTION AND AGING OF TEREPHTHALIC ACID CRYSTALS

被引：16

作者：

BROWN, PM ^{[1
]}

MYERSON, AS ^{[1
]}

机构：

[1] POLYTECH INST NEW YORK,DEPT CHEM ENGN,BROOKLYN,NY 11201

来源：

AICHE JOURNAL | 1989年 / 35卷 / 10期

关键词：

Acids; -; Organic;

D O I：

10.1002/aic.690351023

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Terephthalic acid (TPA) is a major commodity chemical manufactured by the air oxidation of p-xylene. TPA is a crystal which contains two carboxylic groups in the para position on a benzene ring. It is reacted with ethylene glycol via a condensation reaction in the manufacture of polyethylene terephthalate (PET), a polyester, which is used as a fiber and for plastic containers. It is the purpose of this work to directly measure the aging rate of TPA in aqueous solution and relate this to a mechanism based on temperature fluctuations, crystal dissolution, and crystal growth.

引用

页码：1749 / 1752

页数：4

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