Provided is a method for manufacturing a terephthalate-based composition, the method comprising:
a step (S1) of flowing in a dialkyl terephthalate in which alkyl has 7 to 10 carbon atoms and a primary alcohol with a low boiling point having 4 or 5 carbon atoms into a reactor and performing transesterification of the dialkyl terephthalate and the primary alcohol with a low boiling point and
a step (S2) of extracting in a reduced pressure an unreacted material and a by-product from the reactor after finishing the transesterification,
wherein the step S1 comprises a pressure-applying step in which the pressure of the reactor is 1.5 to 2.5 bar.
提供了一种制造基于
对苯二甲酸酯的组合物的方法,该方法包括:在反应器中流入一种二烷基
对苯二甲酸酯,其中烷基具有7到10个碳原子,并且流入一种具有4或5个碳原子的低沸点主链醇,对该二烷基
对苯二甲酸酯和低沸点主链醇进行酯交换反应的步骤(S1);在完成酯交换反应后,在减压条件下从反应器中提取未反应的物料和副产物的步骤(S2);其中步骤S1包括施加压力的步骤,其中反应器的压力为1.5到2.5巴。