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Title:
METHOD FOR WITHDRAWING SOLID CATALYST AND REACTION EQUIPMENT FOR SOLID CATALYST
Document Type and Number:
Japanese Patent JP2005193127
Kind Code:
A
Abstract:

To provide a method for shortening the working time when a solid catalyst packed in a reactor is withdrawn and improving the working environment satisfactorily and to provide reaction equipment for solid catalyst from the reactor of which the solid catalyst can be withdrawn easily.

This method for withdrawing the solid catalyst packed in the reactor comprises steps of introducing a low-viscosity liquid into the reactor and withdrawing the solid catalyst together with the introduced low-viscosity liquid. When the solid catalyst packed in the reactor is an ion exchange resin, this method produces a particularly satisfactory result. This reaction equipment 10 for solid catalyst is provided with: the reactor 12 packed with the solid catalyst 11; a low-viscosity liquid introducing pipeline 13 for introducing the low-viscosity liquid into the reactor 12; and a solid catalyst discharging pipeline 14 for discharging the solid catalyst 11 from the reactor 12.


Inventors:
KONO MICHIYUKI
KAMINE YASUHIRO
MARUMOTO TAKEHIRO
Application Number:
JP2004001170A
Publication Date:
July 21, 2005
Filing Date:
January 06, 2004
Export Citation:
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Assignee:
MITSUBISHI RAYON CO
International Classes:
B01J8/02; B01J8/24; C07B61/00; C07C29/04; C07C31/12; C07C67/08; C07C69/653; (IPC1-7): B01J8/02; B01J8/24; C07C29/04; C07C31/12; C07C67/08; C07C69/653
Domestic Patent References:
JP2003340464A2003-12-02
JPH0838811A1996-02-13
JPS4938428B11974-10-17
JPS5044988A1975-04-22
JPS5973038A1984-04-25
JP2000237578A2000-09-05
JP2000225350A2000-08-15
JPH07108163A1995-04-25
JPS6135897A1986-02-20
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama