Title:
REACTOR FOR CONTACT GAS PHASE OXIDATION
Document Type and Number:
Japanese Patent JP3646027
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To substantially reduce a leakage between upper and lower chambers by installing baffle plates and each of reaction pipes closely together, in a multitubular heat exchanger-type reactor.
SOLUTION: In a multitubular heat exchanger-type reactor partitioned into a plurality of segments by baffle plates in a reactor shell, a reaction pipe is diametrally expanded and tightly fitted into one or more pieces of groove formed in the reaction pipe fitting part of the baffle plates and thus an intermediate tubular plate is obtained, by which a plurality of chambers are formed. In addition, a expansion joint is provided around the cylinder of each of the chambers. This reactor for contact gas phase oxidation is characterized by the described intrashell structure and a method for manufacturing a methacrylic acid using the reactor.
Inventors:
Takeshi Nishimura
Masakatsu Mori
Kitaura Shoji
Hyakuji
Michio Tanimoto
Masakatsu Mori
Kitaura Shoji
Hyakuji
Michio Tanimoto
Application Number:
JP31546999A
Publication Date:
May 11, 2005
Filing Date:
November 05, 1999
Export Citation:
Assignee:
Nippon Shokubai Co., Ltd.
International Classes:
B01J8/00; B01J8/06; B01J12/00; B01J19/00; C07B61/00; C07C51/25; C07C57/05; F28D7/00; F28D7/16; (IPC1-7): B01J8/06; B01J12/00; C07B61/00; C07C57/05; F28D7/16
Domestic Patent References:
| JP54019480A | ||||
| JP54019479A | ||||
| JP54021966A | ||||
| JP60068047A |
Attorney, Agent or Firm:
Mikio Hatta
Yasuo Nara
Etsuko Saito
Yasuo Nara
Etsuko Saito