HORIZONTAL UNIAXIAL REACTOR

PROBLEM TO BE SOLVED: To obtain a reactor with good performance in a wide viscosity range, especially in a high viscosity region, by installing edge disks and partition disks in a cylindrical reactor and connection-fixing these disks at prescribed intervals by agitating blades with openings. SOLUTION: In a cylindrical reactor surrounded by heaters 2, edge disks 9, 9' which rotate in the constant direction and, between them, partition disks 11 having an opening 12 in the middle are installed almost in parallel. Agitating blades 7, 7' which are slanted or curved in the direction reverse to the rotational direction of the partition disks 11 are connection-fixed in both end parts. Each agitating blade 7, 7' has openings, and the opening of them is enlarged from the reaction liquid inlet side toward the outlet side in sequence. Moreover, tail wings 14 which extend in the direction reverse to the rotational direction and have a small gap with the inner wall of the reactor are installed at the ends of the agitating blades 7, 7'. In this way, the reactor useful for the melt polymerization of polycarbonate in which the viscosity of reaction liquid is increased.