Patent ID: 8916673
Filing Date: 2014-12-23
Classification: B01J,C08G

Abstract:
1. An apparatus for producing a liquid crystalline polyester resin, comprising an acetylation reaction vessel and a polycondensation reaction vessel, wherein said acetylation reaction vessel has an inner wall surface composed of an alloy containing 50% by mass or more of Ni and 10% by mass or more of Mo and comprises at least three heating bodies to heat the inside of the vessel; and when taking said heating bodies as a heating body 1, a heating body 2, . . . , and a heating body n from the bottom of said acetylation reaction vessel, at least a heating body m is located within the vessel height ratio represented by Equation (1) below of 20 to 80%; n is an integer of 3 or more; and m is any integer from 2 to (n−1):