METHOD AND APPARATUS FOR CONTINUOUS POLYCONDENSATION

摘要

A continuous polyester manufacturing apparatus comprising an esterifier (first reactor), a prepolymerizer (second reactor) and a final polymerizer. At least one of the first and second reactors is a reactor which does not have a stirring function performed by an external power source, and the final polymerizer is a horizontal single-shaft low-revolution reactor. With this constitution, polyesters can be manufactured with the minimum number of reactors necessary for the reaction and with the least power consumption for the stirring necessary for the reaction. As a result, high-quality polyesters can be produced with high efficiency at a minimum energy cost.