The synthetic routes for the base resins of polytrimethylene terephthalate(PTT) and the process of 1,3-propanediol (PDO) which is the primary monomer of PTT were introduced.

• 介绍聚对苯二甲酸丙二酯(PTT)基础树脂的合成工艺路线及其主要原料1,3-丙二醇(PDO)的生产工艺路线。