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在选择氧化生产中采用的QTA因其成本低、主要杂质4-CBA和PT酸含量适中、合成聚酯质量与PTA相近等优点,正日益被聚酯业所重视。本文详细介绍了QTA在公司连续聚酯装置及纺丝生产线上的使用情况,以供国内聚酯业对QTA的适用性做进一步的探讨。
The QTA used in the selective oxidation production is increasingly valued by the polyester industry because of its low cost, moderate content of the main impurities 4-CBA and PT acid, the similar quality of the synthetic polyester and the PTA. This paper details the use of QTA in the company’s continuous polyester plant and spinning production line for further discussion of the applicability of QTA by domestic polyester industry.