| 摘要 |
Disclosed are methods for preparing an ester of 1,3-propylene glycol and 1,3-propylene glycol, wherein vinyl ester of an organic acid is used as the raw material to obtain the ester of 1,3-propylene glycol, and the obtained ester of 1,3-propylene glycol is hydrolyzed to obtain 1,3-propylene glycol. Said method for preparing the ester of 1,3-propylene glycol includes the following step: the vinyl ester of an organic acid is hydroformylated with CO and H2. The ester of 1,3-propylene glycol may be obtained directly by said reaction through one step, or an aldehyde is obtained firstly by said hydroformylation, then the ester of 1,3-propylene glycol is obtained by reduction the aldehyde with hydrogen. It is easy to refine the present products, the cost for post-treatment of the products is decreased, and the ester of 1,3-propylene glycol may be used directly to prepare PTT fibre without hydrolyzation. |
