CONTINUOUS POLYCONDENSATION PROCESS AND APPARATUS THEREFOR

Title:

CONTINUOUS POLYCONDENSATION PROCESS AND APPARATUS THEREFOR

Document Type and Number:

Japanese Patent JP3392684

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a process for the continuous polycondensation reaction capable of getting a high polymer in a short time without decreasing the flow rate of the treating liquid (by using in the form of extremely thin-layer) and decreasing the generation of off-specification product in the change-over of the kind of the product, by promoting the evaporation of a volatile substance in the treating object liquid in non-contact state, and to provide an apparatus for the process.
SOLUTION: The apparatus main body contains plural cylindrical rotors and a transfer member such as a metal plate extended between the rotors. A treating object liquid is supplied in the form of a film to a surface of the transfer member and an inert gas heated to a prescribed temperature is ejected through a plurality of small nozzles against the surface of the treating liquid during the movement of the liquid in the apparatus main body. The surface of the liquid is renewed by this process to proceed the polycondensation reaction.

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WO/2001/064333	TUBULAR REACTOR, PROCESS FOR CONDUCTING LIQUID/LIQUID MULTIPHASE REACTIONS IN A TUBULAR REACTOR, AND A PROCESS FOR RING-NITRATING AROMATIC COMPOUNDS
JPS5794335	REACTOR

Inventors:

Setsuo Oomoto
Keiji Fujikawa

Application Number:

JP4173397A

Publication Date:

March 31, 2003

Filing Date:

February 26, 1997

Export Citation:

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Assignee:

MITSUBISHI HEAVY INDUSTRIES,LTD.

International Classes:

B01J14/00; C08G63/78; C08G85/00; (IPC1-7): C08G85/00; C08G63/78

Domestic Patent References:

JP63104601A

Attorney, Agent or Firm:

Nao Okuyama (2 outside)

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